Re: myslqd_safe is not starting. pls help
Hi Faizal, all! F.A.I.Z.A.L wrote: hi anyone can help. its urgent. iam trying to start mysql server but it is not starting. Just read the output: bash-2.03# ./mysqld_safe [2] 3422 bash-2.03# Starting mysqld daemon with databases from /usr/local/mysql/var STOPPING server from pid file /usr/local/mysql/var/andd141.pid 100114 11:31:22 mysqld ended log error bash-2.03# more andd141.err 100114 11:31:19 mysqld started 100114 11:31:20 InnoDB: Started; log sequence number 0 44957717 /usr/local/mysql/libexec/mysqld: File './mysql-bin.25' not found (Errcode: 13) 100114 11:31:20 [ERROR] Failed to open log (file './mysql-bin.25', errno 13) ^^ ^^ Assuming this is Linux: joerg:~ find /usr/include -name 'errno*' | xargs fgrep 13 ... ((some irrelevant lines)) /usr/include/asm-generic/errno-base.h:#define EACCES 13 /* Permission denied */ Call man 2 open and search for EACCES, and you will find: | EACCES The requested access to the file is not allowed, or search permission is denied for one of | the directories in the path prefix of pathname, or the file did not exist yet and write | access to the parent directory is not allowed. (See also path_resolution(7).) Then take appropriate action. HTH, Jörg -- Joerg Bruehe, MySQL Build Team, joerg.bru...@sun.com Sun Microsystems GmbH, Komturstraße 18a, D-12099 Berlin Geschaeftsfuehrer: Thomas Schroeder, Wolfgang Engels, Wolf Frenkel Vorsitzender des Aufsichtsrates: Martin Haering Muenchen: HRB161028 -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/mysql?unsub=arch...@jab.org
Re: myslqd_safe is not starting. pls help
hi thanks for your response.. this is solaris 8 machine. thanks a lot. i found the problem and resolved.. problem is: access problem in file system './mysql-bin.25' is created in root.root but it should be in mysql.mysql (user.group). i changed this to mysql, then service started... thanks again.. Cheers Faizal S GSM : 9840118673 Blog: http://oradbapro.blogspot.com On Thu, Jan 14, 2010 at 4:13 PM, Joerg Bruehe joerg.bru...@sun.com wrote: Hi Faizal, all! F.A.I.Z.A.L wrote: hi anyone can help. its urgent. iam trying to start mysql server but it is not starting. Just read the output: bash-2.03# ./mysqld_safe [2] 3422 bash-2.03# Starting mysqld daemon with databases from /usr/local/mysql/var STOPPING server from pid file /usr/local/mysql/var/andd141.pid 100114 11:31:22 mysqld ended log error bash-2.03# more andd141.err 100114 11:31:19 mysqld started 100114 11:31:20 InnoDB: Started; log sequence number 0 44957717 /usr/local/mysql/libexec/mysqld: File './mysql-bin.25' not found (Errcode: 13) 100114 11:31:20 [ERROR] Failed to open log (file './mysql-bin.25', errno 13) ^^ ^^ Assuming this is Linux: joerg:~ find /usr/include -name 'errno*' | xargs fgrep 13 ... ((some irrelevant lines)) /usr/include/asm-generic/errno-base.h:#define EACCES 13 /* Permission denied */ Call man 2 open and search for EACCES, and you will find: | EACCES The requested access to the file is not allowed, or search permission is denied for one of | the directories in the path prefix of pathname, or the file did not exist yet and write | access to the parent directory is not allowed. (See also path_resolution(7).) Then take appropriate action. HTH, Jörg -- Joerg Bruehe, MySQL Build Team, joerg.bru...@sun.com Sun Microsystems GmbH, Komturstraße 18a, D-12099 Berlin Geschaeftsfuehrer: Thomas Schroeder, Wolfgang Engels, Wolf Frenkel Vorsitzender des Aufsichtsrates: Martin Haering Muenchen: HRB161028
myslqd_safe is not starting. pls help
hi anyone can help. its urgent. iam trying to start mysql server but it is not starting. bash-2.03# ./mysqld_safe [2] 3422 bash-2.03# Starting mysqld daemon with databases from /usr/local/mysql/var STOPPING server from pid file /usr/local/mysql/var/andd141.pid 100114 11:31:22 mysqld ended log error bash-2.03# more andd141.err 100114 11:31:19 mysqld started 100114 11:31:20 InnoDB: Started; log sequence number 0 44957717 /usr/local/mysql/libexec/mysqld: File './mysql-bin.25' not found (Errcode: 13) 100114 11:31:20 [ERROR] Failed to open log (file './mysql-bin.25', errno 13) 100114 11:31:20 [ERROR] Could not open log file 100114 11:31:20 [ERROR] Can't init tc log 100114 11:31:20 [ERROR] Aborting 100114 11:31:20 InnoDB: Starting shutdown... 100114 11:31:22 InnoDB: Shutdown completed; log sequence number 0 44957717 100114 11:31:22 [Note] /usr/local/mysql/libexec/mysqld: Shutdown complete 100114 11:31:22 mysqld ended Cheers Faizal S GSM : 9840118673 Blog: http://oradbapro.blogspot.com
mysql performance issue. pls help..
HI experts I am facing performance issue for last couple of months. it taking more time to execute query.. developers created tables on myIsam and Innodb. i have a doubts whether we can use both storage same time.. i have 2 thinks in my minds to check this performance. 1. to check innodb and myisam db memory pools. 2. to check any index are required. based on the above to points i plan to investigate. so please help I am not familiar with mysql and first time iam working with developers. can any help to fix the problem. please assist me what i have to check now?. Best Regards Faizal S GSM : 9840118673 Blog: http://oradbapro.blogspot.com
Re: mysql performance issue. pls help..
hi all this is my innodb preference. i need to change anything for increasing the db performance.. innodb_additional_mem_pool_size -- 1048576 innodb_autoextend_increment -- 8 innodb_buffer_pool_awe_mem_mb -- 0 innodb_buffer_pool_size -- 8388608 innodb_checksums-- ON innodb_commit_concurrency -- 0 innodb_concurrency_tickets -- 500 innodb_data_file_path -- ibdata1:10M:autoextend innodb_data_home_dir-- innodb_doublewrite -- ON innodb_fast_shutdown-- 1 innodb_file_io_threads -- 4 innodb_file_per_table -- OFF innodb_flush_log_at_trx_commit -- 1 innodb_flush_method -- innodb_force_recovery -- 0 innodb_lock_wait_timeout-- 50 innodb_locks_unsafe_for_binlog -- OFF innodb_log_arch_dir -- innodb_log_archive -- OFF innodb_log_buffer_size -- 1048576 innodb_log_file_size-- 5242880 innodb_log_files_in_group -- 2 innodb_log_group_home_dir -- ./ innodb_max_dirty_pages_pct -- 90 innodb_max_purge_lag-- 0 innodb_mirrored_log_groups -- 1 innodb_open_files -- 300 innodb_support_xa -- ON innodb_sync_spin_loops -- 20 innodb_table_locks -- ON innodb_thread_concurrency -- 8 innodb_thread_sleep_delay -- 1 interactive_timeout -- 28800 thanks in advance.. Best Regards Faizal S GSM : 9840118673 Blog: http://oradbapro.blogspot.com On Wed, Nov 18, 2009 at 11:50 AM, F.A.I.Z.A.L sac.fai...@gmail.com wrote: HI experts I am facing performance issue for last couple of months. it taking more time to execute query.. developers created tables on myIsam and Innodb. i have a doubts whether we can use both storage same time.. i have 2 thinks in my minds to check this performance. 1. to check innodb and myisam db memory pools. 2. to check any index are required. based on the above to points i plan to investigate. so please help I am not familiar with mysql and first time iam working with developers. can any help to fix the problem. please assist me what i have to check now?. Best Regards Faizal S GSM : 9840118673 Blog: http://oradbapro.blogspot.com
Transations? (was: Re: login issue..pls help)
Hi, (better change the message subject if you change, well, the subject) user will create more number of tickets per day. so INSERT, UPDATE, SELECT will use highly. in document says' Myisam will not support transaction but it has self backup and restoration method. but in InnoDB good for transaction but no self managed backup and restoration.. now how can i choose my engine. ? my usage is only storage and retrieve data.. so which one is normally preferred by all developers Quite simple really: do you need to store data in one table that depends on other data in other tables? If the answer is YES, then use transactions. Without transactions, you cannot guarantee the data consistency. With regards, Martijn Tonies Upscene Productions http://www.upscene.com Download Database Workbench for Oracle, MS SQL Server, Sybase SQL Anywhere, MySQL, InterBase, NexusDB and Firebird! Database questions? Check the forum: http://www.databasedevelopmentforum.com -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/mysql?unsub=arch...@jab.org
GRANT USAGE (was: Re: login issue..pls help)
what is the purpose of 'Grant usage ' command http://search.mysql.com/search?site=refman-50q=grant+usagelr=lang_en Check the documentation, if you have more questions after that, get back to us. With regards, Martijn Tonies Upscene Productions http://www.upscene.com Download Database Workbench for Oracle, MS SQL Server, Sybase SQL Anywhere, MySQL, InterBase, NexusDB and Firebird! Database questions? Check the forum: http://www.databasedevelopmentforum.com -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/mysql?unsub=arch...@jab.org
RE: login issue..pls help
hi Faizal, in this case, usualy we choose the MyISAM engine, as it will more fast than the innodb. here is the comparision for hte MyISAM vs InnoDB for you reference. 13.1. Comparing Transaction and Nontransaction Engines http://dev.mysql.com/doc/refman/5.1/en/storage-engine-compare-transactions.html best regards liuyann From: sac.fai...@gmail.com Date: Thu, 1 Oct 2009 15:06:54 +0530 Subject: Re: login issue..pls help To: aim.prab...@gmail.com CC: mysql@lists.mysql.com user will create more number of tickets per day. so INSERT, UPDATE, SELECT will use highly. in document says' Myisam will not support transaction but it has self backup and restoration method. but in InnoDB good for transaction but no self managed backup and restoration.. now how can i choose my engine. ? my usage is only storage and retrieve data.. so which one is normally preferred by all developers thanks kumar Best Regards Faizal S GSM : 9840118673 Blog: http://oradbapro.blogspot.com On Thu, Oct 1, 2009 at 2:59 PM, prabhat kumar aim.prab...@gmail.com wrote: innodb. Since, If there are many modifications of the data, it's said that InnoDB works faster because it uses row locking instead of table locking, like MyISAM. However, if there are mainly SELECT statements, a MyISAM table might be faster. On Thu, Oct 1, 2009 at 2:33 PM, F.A.I.Z.A.L sac.fai...@gmail.com wrote: 1 doubt the front end application is lab ticketing system. so user will create many ticket. iam expecting per day 200k ticket user will create. so which storage engine is best to use. innodb or myisam..? Best Regards Faizal S GSM : 9840118673 Blog: http://oradbapro.blogspot.com On Thu, Oct 1, 2009 at 2:10 PM, F.A.I.Z.A.L sac.fai...@gmail.com wrote: thanks kumar. Storage in datadir contain only one location.is it possible to have multiple location to store datafiles.if yes, how? what is the different between storage engine and tablespace in mysql? account creation *create user 'test'@'%' identified by 'test'; grant usage on test.* to 'test'@'%' identified by 'test'; grant select,insert,update,delete,create,drop on test.* to 'test'@'%'; * I used 'USAGE' clause this time but even after that i can able to see other schema and i can able to 'select' tables from other schema. how i can restrict this. only default schema should be accessible to the user thanks in advance.. Best Regards Faizal S GSM : 9840118673 Blog: http://oradbapro.blogspot.com On Thu, Oct 1, 2009 at 1:13 PM, prabhat kumar aim.prab...@gmail.comwrote: A. For transaction *innoDB* is best. B. *ALTER TABLE table_name ENGINE = InnoDB; * but* *if you tons of tables so better export all tables in file and replace all occurs of *myisam* with *InnoDB *the import it. and enable InnoDB engine. http://www.linux.com/archive/articles/46370 C. 1. Stop MySQL. 2. Copy current mysql dir to new drive. 3. Modify the current location with new location in /etc/my.cnf file , datadir variable. 4. Start MySQL. note: *datadir=/path/to/datadir/mysq*l http://docdb.fnal.gov/doc/my.cnf.html On Thu, Oct 1, 2009 at 12:53 PM, F.A.I.Z.A.L sac.fai...@gmail.comwrote: hi Kumar thanks for your info.. another doubt.. which storage engine is best for transaction.. in my server. the default engine is myisam. now i changed one of my schema to innoDB. is that correct. now i want to create another schema in different location. how to create that? because current mountpoint space is very less, in this situation how can move existing schemas to new location? thanks in advance.. Best Regards Faizal S GSM : 9840118673 Blog: http://oradbapro.blogspot.com On Thu, Oct 1, 2009 at 12:28 PM, prabhat kumar aim.prab...@gmail.comwrote: a. INFORMATION_SCHEMA is the information database ie metadata, the place that stores information about all the other databases that the MySQL server maintains. Inside INFORMATION_SCHEMA there are several read-only tables. They are actually views, not base tables, so there are no files associated with them. Each MySQL user has the right to access these tables, but can see only the rows in the tables that correspond to objects for which the user has the proper access privileges. http://dev.mysql.com/doc/refman/5.0/en/information-schema.html b. Its depend on your requirement like your user will perform only DML query or also want DDL operations. http://dev.mysql.com/doc/refman/5.1/en/privileges-provided.html On Thu, Oct 1, 2009 at 12:08 PM, F.A.I.Z.A.L sac.fai...@gmail.comwrote: thanks kumar.. now its working i have another doubt i created an user with limited privilege on particular schema. schema name: test *mysql create user 'test'@'%' identified by 'test'; mysql grant select,insert,update,delete
Re: login issue..pls help
This particular reference is little too vague to be of much use. MyISAM may outperform innodb in signle process situations but in contentious mixed read/write traffic (suchas a typical webapp), innodb is much faster for a variety of reasons. 13.1. Comparing Transaction and Nontransaction Engines http://dev.mysql.com/doc/refman/5.1/en/storage-engine-compare-transactions.html -- - michael dykman - mdyk...@gmail.com Don’t worry about people stealing your ideas. If they’re any good, you’ll have to ram them down their throats! Howard Aiken -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/mysql?unsub=arch...@jab.org
Re: login issue..pls help
thanks kumar.. now its working i have another doubt i created an user with limited privilege on particular schema. schema name: test *mysql create user 'test'@'%' identified by 'test'; mysql grant select,insert,update,delete,create,drop on test.* to 'test'@ '%';* after that i login with 'test' user using mysql query browser. but i can able to see other schemas like 'information_Schema' and 'test_schema' created by other. how can i avoid this. i want to see only my default schema.. 2. for created new mysql database or schema what are the privileges are required.. please help.. Best Regards Faizal S GSM : 9840118673 Blog: http://oradbapro.blogspot.com On Thu, Oct 1, 2009 at 11:09 AM, prabhat kumar aim.prab...@gmail.comwrote: Use : mysql -u root -p (it will prompt for password) and if its not a local host also add -h ipaddress On Thu, Oct 1, 2009 at 11:01 AM, F.A.I.Z.A.L sac.fai...@gmail.com wrote: Hi iam getting the following error while login into mysql server. andd141# mysql -u root ERROR 1045 (28000): Access denied for user 'root'@'localhost' (using password: NO) Can someone please help me understand why I am not able to login from root? Best Regards Faizal S GSM : 9840118673 Blog: http://oradbapro.blogspot.com -- Best Regards, Prabhat Kumar MySQL DBA Datavail-India Mumbai Mobile : 91-9987681929 www.datavail.com My Blog: http://adminlinux.blogspot.com My LinkedIn: http://www.linkedin.com/in/profileprabhat
Re: login issue..pls help
a. INFORMATION_SCHEMA is the information database ie metadata, the place that stores information about all the other databases that the MySQL server maintains. Inside INFORMATION_SCHEMA there are several read-only tables. They are actually views, not base tables, so there are no files associated with them. Each MySQL user has the right to access these tables, but can see only the rows in the tables that correspond to objects for which the user has the proper access privileges. http://dev.mysql.com/doc/refman/5.0/en/information-schema.html b. Its depend on your requirement like your user will perform only DML query or also want DDL operations. http://dev.mysql.com/doc/refman/5.1/en/privileges-provided.html On Thu, Oct 1, 2009 at 12:08 PM, F.A.I.Z.A.L sac.fai...@gmail.com wrote: thanks kumar.. now its working i have another doubt i created an user with limited privilege on particular schema. schema name: test *mysql create user 'test'@'%' identified by 'test'; mysql grant select,insert,update,delete,create,drop on test.* to 'test'@ '%';* after that i login with 'test' user using mysql query browser. but i can able to see other schemas like 'information_Schema' and 'test_schema' created by other. how can i avoid this. i want to see only my default schema.. 2. for created new mysql database or schema what are the privileges are required.. please help.. Best Regards Faizal S GSM : 9840118673 Blog: http://oradbapro.blogspot.com On Thu, Oct 1, 2009 at 11:09 AM, prabhat kumar aim.prab...@gmail.comwrote: Use : mysql -u root -p (it will prompt for password) and if its not a local host also add -h ipaddress On Thu, Oct 1, 2009 at 11:01 AM, F.A.I.Z.A.L sac.fai...@gmail.comwrote: Hi iam getting the following error while login into mysql server. andd141# mysql -u root ERROR 1045 (28000): Access denied for user 'root'@'localhost' (using password: NO) Can someone please help me understand why I am not able to login from root? Best Regards Faizal S GSM : 9840118673 Blog: http://oradbapro.blogspot.com -- Best Regards, Prabhat Kumar MySQL DBA Datavail-India Mumbai Mobile : 91-9987681929 www.datavail.com My Blog: http://adminlinux.blogspot.com My LinkedIn: http://www.linkedin.com/in/profileprabhat -- Best Regards, Prabhat Kumar MySQL DBA Datavail-India Mumbai Mobile : 91-9987681929 www.datavail.com My Blog: http://adminlinux.blogspot.com My LinkedIn: http://www.linkedin.com/in/profileprabhat
Re: login issue..pls help
hi Kumar thanks for your info.. another doubt.. which storage engine is best for transaction.. in my server. the default engine is myisam. now i changed one of my schema to innoDB. is that correct. now i want to create another schema in different location. how to create that? because current mountpoint space is very less, in this situation how can move existing schemas to new location? thanks in advance.. Best Regards Faizal S GSM : 9840118673 Blog: http://oradbapro.blogspot.com On Thu, Oct 1, 2009 at 12:28 PM, prabhat kumar aim.prab...@gmail.comwrote: a. INFORMATION_SCHEMA is the information database ie metadata, the place that stores information about all the other databases that the MySQL server maintains. Inside INFORMATION_SCHEMA there are several read-only tables. They are actually views, not base tables, so there are no files associated with them. Each MySQL user has the right to access these tables, but can see only the rows in the tables that correspond to objects for which the user has the proper access privileges. http://dev.mysql.com/doc/refman/5.0/en/information-schema.html b. Its depend on your requirement like your user will perform only DML query or also want DDL operations. http://dev.mysql.com/doc/refman/5.1/en/privileges-provided.html On Thu, Oct 1, 2009 at 12:08 PM, F.A.I.Z.A.L sac.fai...@gmail.com wrote: thanks kumar.. now its working i have another doubt i created an user with limited privilege on particular schema. schema name: test *mysql create user 'test'@'%' identified by 'test'; mysql grant select,insert,update,delete,create,drop on test.* to 'test'@ '%';* after that i login with 'test' user using mysql query browser. but i can able to see other schemas like 'information_Schema' and 'test_schema' created by other. how can i avoid this. i want to see only my default schema.. 2. for created new mysql database or schema what are the privileges are required.. please help.. Best Regards Faizal S GSM : 9840118673 Blog: http://oradbapro.blogspot.com On Thu, Oct 1, 2009 at 11:09 AM, prabhat kumar aim.prab...@gmail.comwrote: Use : mysql -u root -p (it will prompt for password) and if its not a local host also add -h ipaddress On Thu, Oct 1, 2009 at 11:01 AM, F.A.I.Z.A.L sac.fai...@gmail.comwrote: Hi iam getting the following error while login into mysql server. andd141# mysql -u root ERROR 1045 (28000): Access denied for user 'root'@'localhost' (using password: NO) Can someone please help me understand why I am not able to login from root? Best Regards Faizal S GSM : 9840118673 Blog: http://oradbapro.blogspot.com -- Best Regards, Prabhat Kumar MySQL DBA Datavail-India Mumbai Mobile : 91-9987681929 www.datavail.com My Blog: http://adminlinux.blogspot.com My LinkedIn: http://www.linkedin.com/in/profileprabhat -- Best Regards, Prabhat Kumar MySQL DBA Datavail-India Mumbai Mobile : 91-9987681929 www.datavail.com My Blog: http://adminlinux.blogspot.com My LinkedIn: http://www.linkedin.com/in/profileprabhat
Re: login issue..pls help
A. For transaction *innoDB* is best. B. *ALTER TABLE table_name ENGINE = InnoDB; * but* *if you tons of tables so better export all tables in file and replace all occurs of *myisam* with *InnoDB *the import it. and enable InnoDB engine. http://www.linux.com/archive/articles/46370 C. 1. Stop MySQL. 2. Copy current mysql dir to new drive. 3. Modify the current location with new location in /etc/my.cnf file , datadir variable. 4. Start MySQL. note: *datadir=/path/to/datadir/mysq*l http://docdb.fnal.gov/doc/my.cnf.html On Thu, Oct 1, 2009 at 12:53 PM, F.A.I.Z.A.L sac.fai...@gmail.com wrote: hi Kumar thanks for your info.. another doubt.. which storage engine is best for transaction.. in my server. the default engine is myisam. now i changed one of my schema to innoDB. is that correct. now i want to create another schema in different location. how to create that? because current mountpoint space is very less, in this situation how can move existing schemas to new location? thanks in advance.. Best Regards Faizal S GSM : 9840118673 Blog: http://oradbapro.blogspot.com On Thu, Oct 1, 2009 at 12:28 PM, prabhat kumar aim.prab...@gmail.comwrote: a. INFORMATION_SCHEMA is the information database ie metadata, the place that stores information about all the other databases that the MySQL server maintains. Inside INFORMATION_SCHEMA there are several read-only tables. They are actually views, not base tables, so there are no files associated with them. Each MySQL user has the right to access these tables, but can see only the rows in the tables that correspond to objects for which the user has the proper access privileges. http://dev.mysql.com/doc/refman/5.0/en/information-schema.html b. Its depend on your requirement like your user will perform only DML query or also want DDL operations. http://dev.mysql.com/doc/refman/5.1/en/privileges-provided.html On Thu, Oct 1, 2009 at 12:08 PM, F.A.I.Z.A.L sac.fai...@gmail.comwrote: thanks kumar.. now its working i have another doubt i created an user with limited privilege on particular schema. schema name: test *mysql create user 'test'@'%' identified by 'test'; mysql grant select,insert,update,delete,create,drop on test.* to 'test'@ '%';* after that i login with 'test' user using mysql query browser. but i can able to see other schemas like 'information_Schema' and 'test_schema' created by other. how can i avoid this. i want to see only my default schema.. 2. for created new mysql database or schema what are the privileges are required.. please help.. Best Regards Faizal S GSM : 9840118673 Blog: http://oradbapro.blogspot.com On Thu, Oct 1, 2009 at 11:09 AM, prabhat kumar aim.prab...@gmail.comwrote: Use : mysql -u root -p (it will prompt for password) and if its not a local host also add -h ipaddress On Thu, Oct 1, 2009 at 11:01 AM, F.A.I.Z.A.L sac.fai...@gmail.comwrote: Hi iam getting the following error while login into mysql server. andd141# mysql -u root ERROR 1045 (28000): Access denied for user 'root'@'localhost' (using password: NO) Can someone please help me understand why I am not able to login from root? Best Regards Faizal S GSM : 9840118673 Blog: http://oradbapro.blogspot.com -- Best Regards, Prabhat Kumar MySQL DBA Datavail-India Mumbai Mobile : 91-9987681929 www.datavail.com My Blog: http://adminlinux.blogspot.com My LinkedIn: http://www.linkedin.com/in/profileprabhat -- Best Regards, Prabhat Kumar MySQL DBA Datavail-India Mumbai Mobile : 91-9987681929 www.datavail.com My Blog: http://adminlinux.blogspot.com My LinkedIn: http://www.linkedin.com/in/profileprabhat -- Best Regards, Prabhat Kumar MySQL DBA Datavail-India Mumbai Mobile : 91-9987681929 www.datavail.com My Blog: http://adminlinux.blogspot.com My LinkedIn: http://www.linkedin.com/in/profileprabhat
Re: login issue..pls help
thanks kumar. Storage in datadir contain only one location.is it possible to have multiple location to store datafiles.if yes, how? what is the different between storage engine and tablespace in mysql? account creation *create user 'test'@'%' identified by 'test'; grant usage on test.* to 'test'@'%' identified by 'test'; grant select,insert,update,delete,create,drop on test.* to 'test'@'%';* I used 'USAGE' clause this time but even after that i can able to see other schema and i can able to 'select' tables from other schema. how i can restrict this. only default schema should be accessible to the user thanks in advance.. Best Regards Faizal S GSM : 9840118673 Blog: http://oradbapro.blogspot.com On Thu, Oct 1, 2009 at 1:13 PM, prabhat kumar aim.prab...@gmail.com wrote: A. For transaction *innoDB* is best. B. *ALTER TABLE table_name ENGINE = InnoDB; * but* *if you tons of tables so better export all tables in file and replace all occurs of *myisam* with *InnoDB *the import it. and enable InnoDB engine. http://www.linux.com/archive/articles/46370 C. 1. Stop MySQL. 2. Copy current mysql dir to new drive. 3. Modify the current location with new location in /etc/my.cnf file , datadir variable. 4. Start MySQL. note: *datadir=/path/to/datadir/mysq*l http://docdb.fnal.gov/doc/my.cnf.html On Thu, Oct 1, 2009 at 12:53 PM, F.A.I.Z.A.L sac.fai...@gmail.com wrote: hi Kumar thanks for your info.. another doubt.. which storage engine is best for transaction.. in my server. the default engine is myisam. now i changed one of my schema to innoDB. is that correct. now i want to create another schema in different location. how to create that? because current mountpoint space is very less, in this situation how can move existing schemas to new location? thanks in advance.. Best Regards Faizal S GSM : 9840118673 Blog: http://oradbapro.blogspot.com On Thu, Oct 1, 2009 at 12:28 PM, prabhat kumar aim.prab...@gmail.comwrote: a. INFORMATION_SCHEMA is the information database ie metadata, the place that stores information about all the other databases that the MySQL server maintains. Inside INFORMATION_SCHEMA there are several read-only tables. They are actually views, not base tables, so there are no files associated with them. Each MySQL user has the right to access these tables, but can see only the rows in the tables that correspond to objects for which the user has the proper access privileges. http://dev.mysql.com/doc/refman/5.0/en/information-schema.html b. Its depend on your requirement like your user will perform only DML query or also want DDL operations. http://dev.mysql.com/doc/refman/5.1/en/privileges-provided.html On Thu, Oct 1, 2009 at 12:08 PM, F.A.I.Z.A.L sac.fai...@gmail.comwrote: thanks kumar.. now its working i have another doubt i created an user with limited privilege on particular schema. schema name: test *mysql create user 'test'@'%' identified by 'test'; mysql grant select,insert,update,delete,create,drop on test.* to 'test'@'%';* after that i login with 'test' user using mysql query browser. but i can able to see other schemas like 'information_Schema' and 'test_schema' created by other. how can i avoid this. i want to see only my default schema.. 2. for created new mysql database or schema what are the privileges are required.. please help.. Best Regards Faizal S GSM : 9840118673 Blog: http://oradbapro.blogspot.com On Thu, Oct 1, 2009 at 11:09 AM, prabhat kumar aim.prab...@gmail.comwrote: Use : mysql -u root -p (it will prompt for password) and if its not a local host also add -h ipaddress On Thu, Oct 1, 2009 at 11:01 AM, F.A.I.Z.A.L sac.fai...@gmail.comwrote: Hi iam getting the following error while login into mysql server. andd141# mysql -u root ERROR 1045 (28000): Access denied for user 'root'@'localhost' (using password: NO) Can someone please help me understand why I am not able to login from root? Best Regards Faizal S GSM : 9840118673 Blog: http://oradbapro.blogspot.com -- Best Regards, Prabhat Kumar MySQL DBA Datavail-India Mumbai Mobile : 91-9987681929 www.datavail.com My Blog: http://adminlinux.blogspot.com My LinkedIn: http://www.linkedin.com/in/profileprabhat -- Best Regards, Prabhat Kumar MySQL DBA Datavail-India Mumbai Mobile : 91-9987681929 www.datavail.com My Blog: http://adminlinux.blogspot.com My LinkedIn: http://www.linkedin.com/in/profileprabhat -- Best Regards, Prabhat Kumar MySQL DBA Datavail-India Mumbai Mobile : 91-9987681929 www.datavail.com My Blog: http://adminlinux.blogspot.com My LinkedIn: http://www.linkedin.com/in/profileprabhat
Re: login issue..pls help
1 doubt the front end application is lab ticketing system. so user will create many ticket. iam expecting per day 200k ticket user will create. so which storage engine is best to use. innodb or myisam..? Best Regards Faizal S GSM : 9840118673 Blog: http://oradbapro.blogspot.com On Thu, Oct 1, 2009 at 2:10 PM, F.A.I.Z.A.L sac.fai...@gmail.com wrote: thanks kumar. Storage in datadir contain only one location.is it possible to have multiple location to store datafiles.if yes, how? what is the different between storage engine and tablespace in mysql? account creation *create user 'test'@'%' identified by 'test'; grant usage on test.* to 'test'@'%' identified by 'test'; grant select,insert,update,delete,create,drop on test.* to 'test'@'%'; * I used 'USAGE' clause this time but even after that i can able to see other schema and i can able to 'select' tables from other schema. how i can restrict this. only default schema should be accessible to the user thanks in advance.. Best Regards Faizal S GSM : 9840118673 Blog: http://oradbapro.blogspot.com On Thu, Oct 1, 2009 at 1:13 PM, prabhat kumar aim.prab...@gmail.comwrote: A. For transaction *innoDB* is best. B. *ALTER TABLE table_name ENGINE = InnoDB; * but* *if you tons of tables so better export all tables in file and replace all occurs of *myisam* with *InnoDB *the import it. and enable InnoDB engine. http://www.linux.com/archive/articles/46370 C. 1. Stop MySQL. 2. Copy current mysql dir to new drive. 3. Modify the current location with new location in /etc/my.cnf file , datadir variable. 4. Start MySQL. note: *datadir=/path/to/datadir/mysq*l http://docdb.fnal.gov/doc/my.cnf.html On Thu, Oct 1, 2009 at 12:53 PM, F.A.I.Z.A.L sac.fai...@gmail.comwrote: hi Kumar thanks for your info.. another doubt.. which storage engine is best for transaction.. in my server. the default engine is myisam. now i changed one of my schema to innoDB. is that correct. now i want to create another schema in different location. how to create that? because current mountpoint space is very less, in this situation how can move existing schemas to new location? thanks in advance.. Best Regards Faizal S GSM : 9840118673 Blog: http://oradbapro.blogspot.com On Thu, Oct 1, 2009 at 12:28 PM, prabhat kumar aim.prab...@gmail.comwrote: a. INFORMATION_SCHEMA is the information database ie metadata, the place that stores information about all the other databases that the MySQL server maintains. Inside INFORMATION_SCHEMA there are several read-only tables. They are actually views, not base tables, so there are no files associated with them. Each MySQL user has the right to access these tables, but can see only the rows in the tables that correspond to objects for which the user has the proper access privileges. http://dev.mysql.com/doc/refman/5.0/en/information-schema.html b. Its depend on your requirement like your user will perform only DML query or also want DDL operations. http://dev.mysql.com/doc/refman/5.1/en/privileges-provided.html On Thu, Oct 1, 2009 at 12:08 PM, F.A.I.Z.A.L sac.fai...@gmail.comwrote: thanks kumar.. now its working i have another doubt i created an user with limited privilege on particular schema. schema name: test *mysql create user 'test'@'%' identified by 'test'; mysql grant select,insert,update,delete,create,drop on test.* to 'test'@'%';* after that i login with 'test' user using mysql query browser. but i can able to see other schemas like 'information_Schema' and 'test_schema' created by other. how can i avoid this. i want to see only my default schema.. 2. for created new mysql database or schema what are the privileges are required.. please help.. Best Regards Faizal S GSM : 9840118673 Blog: http://oradbapro.blogspot.com On Thu, Oct 1, 2009 at 11:09 AM, prabhat kumar aim.prab...@gmail.comwrote: Use : mysql -u root -p (it will prompt for password) and if its not a local host also add -h ipaddress On Thu, Oct 1, 2009 at 11:01 AM, F.A.I.Z.A.L sac.fai...@gmail.comwrote: Hi iam getting the following error while login into mysql server. andd141# mysql -u root ERROR 1045 (28000): Access denied for user 'root'@'localhost' (using password: NO) Can someone please help me understand why I am not able to login from root? Best Regards Faizal S GSM : 9840118673 Blog: http://oradbapro.blogspot.com -- Best Regards, Prabhat Kumar MySQL DBA Datavail-India Mumbai Mobile : 91-9987681929 www.datavail.com My Blog: http://adminlinux.blogspot.com My LinkedIn: http://www.linkedin.com/in/profileprabhat -- Best Regards, Prabhat Kumar MySQL DBA Datavail-India Mumbai Mobile : 91-9987681929 www.datavail.com My Blog: http://adminlinux.blogspot.com My LinkedIn: http://www.linkedin.com/in/profileprabhat -- Best Regards, Prabhat Kumar MySQL DBA Datavail-India Mumbai Mobile
Re: login issue..pls help
a. at Linux level you can make soft link to database dir to particular database ie schema. I don't is it possible at mysql level? b. There is no relation between storage engine and table space. Yes, Innodb uses tablespace you can read more on both. c. http://mysql-tips.blogspot.com/2005/04/setup-new-users-in-mysql.html On Thu, Oct 1, 2009 at 2:10 PM, F.A.I.Z.A.L sac.fai...@gmail.com wrote: thanks kumar. Storage in datadir contain only one location.is it possible to have multiple location to store datafiles.if yes, how? what is the different between storage engine and tablespace in mysql? account creation *create user 'test'@'%' identified by 'test'; grant usage on test.* to 'test'@'%' identified by 'test'; grant select,insert,update,delete,create,drop on test.* to 'test'@'%'; * I used 'USAGE' clause this time but even after that i can able to see other schema and i can able to 'select' tables from other schema. how i can restrict this. only default schema should be accessible to the user thanks in advance.. Best Regards Faizal S GSM : 9840118673 Blog: http://oradbapro.blogspot.com On Thu, Oct 1, 2009 at 1:13 PM, prabhat kumar aim.prab...@gmail.comwrote: A. For transaction *innoDB* is best. B. *ALTER TABLE table_name ENGINE = InnoDB; * but* *if you tons of tables so better export all tables in file and replace all occurs of *myisam* with *InnoDB *the import it. and enable InnoDB engine. http://www.linux.com/archive/articles/46370 C. 1. Stop MySQL. 2. Copy current mysql dir to new drive. 3. Modify the current location with new location in /etc/my.cnf file , datadir variable. 4. Start MySQL. note: *datadir=/path/to/datadir/mysq*l http://docdb.fnal.gov/doc/my.cnf.html On Thu, Oct 1, 2009 at 12:53 PM, F.A.I.Z.A.L sac.fai...@gmail.comwrote: hi Kumar thanks for your info.. another doubt.. which storage engine is best for transaction.. in my server. the default engine is myisam. now i changed one of my schema to innoDB. is that correct. now i want to create another schema in different location. how to create that? because current mountpoint space is very less, in this situation how can move existing schemas to new location? thanks in advance.. Best Regards Faizal S GSM : 9840118673 Blog: http://oradbapro.blogspot.com On Thu, Oct 1, 2009 at 12:28 PM, prabhat kumar aim.prab...@gmail.comwrote: a. INFORMATION_SCHEMA is the information database ie metadata, the place that stores information about all the other databases that the MySQL server maintains. Inside INFORMATION_SCHEMA there are several read-only tables. They are actually views, not base tables, so there are no files associated with them. Each MySQL user has the right to access these tables, but can see only the rows in the tables that correspond to objects for which the user has the proper access privileges. http://dev.mysql.com/doc/refman/5.0/en/information-schema.html b. Its depend on your requirement like your user will perform only DML query or also want DDL operations. http://dev.mysql.com/doc/refman/5.1/en/privileges-provided.html On Thu, Oct 1, 2009 at 12:08 PM, F.A.I.Z.A.L sac.fai...@gmail.comwrote: thanks kumar.. now its working i have another doubt i created an user with limited privilege on particular schema. schema name: test *mysql create user 'test'@'%' identified by 'test'; mysql grant select,insert,update,delete,create,drop on test.* to 'test'@'%';* after that i login with 'test' user using mysql query browser. but i can able to see other schemas like 'information_Schema' and 'test_schema' created by other. how can i avoid this. i want to see only my default schema.. 2. for created new mysql database or schema what are the privileges are required.. please help.. Best Regards Faizal S GSM : 9840118673 Blog: http://oradbapro.blogspot.com On Thu, Oct 1, 2009 at 11:09 AM, prabhat kumar aim.prab...@gmail.comwrote: Use : mysql -u root -p (it will prompt for password) and if its not a local host also add -h ipaddress On Thu, Oct 1, 2009 at 11:01 AM, F.A.I.Z.A.L sac.fai...@gmail.comwrote: Hi iam getting the following error while login into mysql server. andd141# mysql -u root ERROR 1045 (28000): Access denied for user 'root'@'localhost' (using password: NO) Can someone please help me understand why I am not able to login from root? Best Regards Faizal S GSM : 9840118673 Blog: http://oradbapro.blogspot.com -- Best Regards, Prabhat Kumar MySQL DBA Datavail-India Mumbai Mobile : 91-9987681929 www.datavail.com My Blog: http://adminlinux.blogspot.com My LinkedIn: http://www.linkedin.com/in/profileprabhat -- Best Regards, Prabhat Kumar MySQL DBA Datavail-India Mumbai Mobile : 91-9987681929 www.datavail.com My Blog: http://adminlinux.blogspot.com My LinkedIn: http://www.linkedin.com/in/profileprabhat -- Best Regards, Prabhat
Re: login issue..pls help
innodb. Since, If there are many modifications of the data, it's said that InnoDB works faster because it uses row locking instead of table locking, like MyISAM. However, if there are mainly SELECT statements, a MyISAM table might be faster. On Thu, Oct 1, 2009 at 2:33 PM, F.A.I.Z.A.L sac.fai...@gmail.com wrote: 1 doubt the front end application is lab ticketing system. so user will create many ticket. iam expecting per day 200k ticket user will create. so which storage engine is best to use. innodb or myisam..? Best Regards Faizal S GSM : 9840118673 Blog: http://oradbapro.blogspot.com On Thu, Oct 1, 2009 at 2:10 PM, F.A.I.Z.A.L sac.fai...@gmail.com wrote: thanks kumar. Storage in datadir contain only one location.is it possible to have multiple location to store datafiles.if yes, how? what is the different between storage engine and tablespace in mysql? account creation *create user 'test'@'%' identified by 'test'; grant usage on test.* to 'test'@'%' identified by 'test'; grant select,insert,update,delete,create,drop on test.* to 'test'@'%'; * I used 'USAGE' clause this time but even after that i can able to see other schema and i can able to 'select' tables from other schema. how i can restrict this. only default schema should be accessible to the user thanks in advance.. Best Regards Faizal S GSM : 9840118673 Blog: http://oradbapro.blogspot.com On Thu, Oct 1, 2009 at 1:13 PM, prabhat kumar aim.prab...@gmail.comwrote: A. For transaction *innoDB* is best. B. *ALTER TABLE table_name ENGINE = InnoDB; * but* *if you tons of tables so better export all tables in file and replace all occurs of *myisam* with *InnoDB *the import it. and enable InnoDB engine. http://www.linux.com/archive/articles/46370 C. 1. Stop MySQL. 2. Copy current mysql dir to new drive. 3. Modify the current location with new location in /etc/my.cnf file , datadir variable. 4. Start MySQL. note: *datadir=/path/to/datadir/mysq*l http://docdb.fnal.gov/doc/my.cnf.html On Thu, Oct 1, 2009 at 12:53 PM, F.A.I.Z.A.L sac.fai...@gmail.comwrote: hi Kumar thanks for your info.. another doubt.. which storage engine is best for transaction.. in my server. the default engine is myisam. now i changed one of my schema to innoDB. is that correct. now i want to create another schema in different location. how to create that? because current mountpoint space is very less, in this situation how can move existing schemas to new location? thanks in advance.. Best Regards Faizal S GSM : 9840118673 Blog: http://oradbapro.blogspot.com On Thu, Oct 1, 2009 at 12:28 PM, prabhat kumar aim.prab...@gmail.comwrote: a. INFORMATION_SCHEMA is the information database ie metadata, the place that stores information about all the other databases that the MySQL server maintains. Inside INFORMATION_SCHEMA there are several read-only tables. They are actually views, not base tables, so there are no files associated with them. Each MySQL user has the right to access these tables, but can see only the rows in the tables that correspond to objects for which the user has the proper access privileges. http://dev.mysql.com/doc/refman/5.0/en/information-schema.html b. Its depend on your requirement like your user will perform only DML query or also want DDL operations. http://dev.mysql.com/doc/refman/5.1/en/privileges-provided.html On Thu, Oct 1, 2009 at 12:08 PM, F.A.I.Z.A.L sac.fai...@gmail.comwrote: thanks kumar.. now its working i have another doubt i created an user with limited privilege on particular schema. schema name: test *mysql create user 'test'@'%' identified by 'test'; mysql grant select,insert,update,delete,create,drop on test.* to 'test'@'%';* after that i login with 'test' user using mysql query browser. but i can able to see other schemas like 'information_Schema' and 'test_schema' created by other. how can i avoid this. i want to see only my default schema.. 2. for created new mysql database or schema what are the privileges are required.. please help.. Best Regards Faizal S GSM : 9840118673 Blog: http://oradbapro.blogspot.com On Thu, Oct 1, 2009 at 11:09 AM, prabhat kumar aim.prab...@gmail.com wrote: Use : mysql -u root -p (it will prompt for password) and if its not a local host also add -h ipaddress On Thu, Oct 1, 2009 at 11:01 AM, F.A.I.Z.A.L sac.fai...@gmail.comwrote: Hi iam getting the following error while login into mysql server. andd141# mysql -u root ERROR 1045 (28000): Access denied for user 'root'@'localhost' (using password: NO) Can someone please help me understand why I am not able to login from root? Best Regards Faizal S GSM : 9840118673 Blog: http://oradbapro.blogspot.com -- Best Regards, Prabhat Kumar MySQL DBA Datavail-India Mumbai Mobile : 91-9987681929 www.datavail.com My Blog: http://adminlinux.blogspot.com My LinkedIn:
Re: login issue..pls help
user will create more number of tickets per day. so INSERT, UPDATE, SELECT will use highly. in document says' Myisam will not support transaction but it has self backup and restoration method. but in InnoDB good for transaction but no self managed backup and restoration.. now how can i choose my engine. ? my usage is only storage and retrieve data.. so which one is normally preferred by all developers thanks kumar Best Regards Faizal S GSM : 9840118673 Blog: http://oradbapro.blogspot.com On Thu, Oct 1, 2009 at 2:59 PM, prabhat kumar aim.prab...@gmail.com wrote: innodb. Since, If there are many modifications of the data, it's said that InnoDB works faster because it uses row locking instead of table locking, like MyISAM. However, if there are mainly SELECT statements, a MyISAM table might be faster. On Thu, Oct 1, 2009 at 2:33 PM, F.A.I.Z.A.L sac.fai...@gmail.com wrote: 1 doubt the front end application is lab ticketing system. so user will create many ticket. iam expecting per day 200k ticket user will create. so which storage engine is best to use. innodb or myisam..? Best Regards Faizal S GSM : 9840118673 Blog: http://oradbapro.blogspot.com On Thu, Oct 1, 2009 at 2:10 PM, F.A.I.Z.A.L sac.fai...@gmail.com wrote: thanks kumar. Storage in datadir contain only one location.is it possible to have multiple location to store datafiles.if yes, how? what is the different between storage engine and tablespace in mysql? account creation *create user 'test'@'%' identified by 'test'; grant usage on test.* to 'test'@'%' identified by 'test'; grant select,insert,update,delete,create,drop on test.* to 'test'@'%'; * I used 'USAGE' clause this time but even after that i can able to see other schema and i can able to 'select' tables from other schema. how i can restrict this. only default schema should be accessible to the user thanks in advance.. Best Regards Faizal S GSM : 9840118673 Blog: http://oradbapro.blogspot.com On Thu, Oct 1, 2009 at 1:13 PM, prabhat kumar aim.prab...@gmail.comwrote: A. For transaction *innoDB* is best. B. *ALTER TABLE table_name ENGINE = InnoDB; * but* *if you tons of tables so better export all tables in file and replace all occurs of *myisam* with *InnoDB *the import it. and enable InnoDB engine. http://www.linux.com/archive/articles/46370 C. 1. Stop MySQL. 2. Copy current mysql dir to new drive. 3. Modify the current location with new location in /etc/my.cnf file , datadir variable. 4. Start MySQL. note: *datadir=/path/to/datadir/mysq*l http://docdb.fnal.gov/doc/my.cnf.html On Thu, Oct 1, 2009 at 12:53 PM, F.A.I.Z.A.L sac.fai...@gmail.comwrote: hi Kumar thanks for your info.. another doubt.. which storage engine is best for transaction.. in my server. the default engine is myisam. now i changed one of my schema to innoDB. is that correct. now i want to create another schema in different location. how to create that? because current mountpoint space is very less, in this situation how can move existing schemas to new location? thanks in advance.. Best Regards Faizal S GSM : 9840118673 Blog: http://oradbapro.blogspot.com On Thu, Oct 1, 2009 at 12:28 PM, prabhat kumar aim.prab...@gmail.comwrote: a. INFORMATION_SCHEMA is the information database ie metadata, the place that stores information about all the other databases that the MySQL server maintains. Inside INFORMATION_SCHEMA there are several read-only tables. They are actually views, not base tables, so there are no files associated with them. Each MySQL user has the right to access these tables, but can see only the rows in the tables that correspond to objects for which the user has the proper access privileges. http://dev.mysql.com/doc/refman/5.0/en/information-schema.html b. Its depend on your requirement like your user will perform only DML query or also want DDL operations. http://dev.mysql.com/doc/refman/5.1/en/privileges-provided.html On Thu, Oct 1, 2009 at 12:08 PM, F.A.I.Z.A.L sac.fai...@gmail.comwrote: thanks kumar.. now its working i have another doubt i created an user with limited privilege on particular schema. schema name: test *mysql create user 'test'@'%' identified by 'test'; mysql grant select,insert,update,delete,create,drop on test.* to 'test'@'%';* after that i login with 'test' user using mysql query browser. but i can able to see other schemas like 'information_Schema' and 'test_schema' created by other. how can i avoid this. i want to see only my default schema.. 2. for created new mysql database or schema what are the privileges are required.. please help.. Best Regards Faizal S GSM : 9840118673 Blog: http://oradbapro.blogspot.com On Thu, Oct 1, 2009 at 11:09 AM, prabhat kumar aim.prab...@gmail.com wrote: Use : mysql -u root -p (it will prompt for password) and if its not a local host also add -h ipaddress On Thu, Oct
Re: login issue..pls help
hi kumar what is the purpose of 'Grant usage ' command Best Regards Faizal S GSM : 9840118673 Blog: http://oradbapro.blogspot.com On Thu, Oct 1, 2009 at 3:06 PM, F.A.I.Z.A.L sac.fai...@gmail.com wrote: user will create more number of tickets per day. so INSERT, UPDATE, SELECT will use highly. in document says' Myisam will not support transaction but it has self backup and restoration method. but in InnoDB good for transaction but no self managed backup and restoration.. now how can i choose my engine. ? my usage is only storage and retrieve data.. so which one is normally preferred by all developers thanks kumar Best Regards Faizal S GSM : 9840118673 Blog: http://oradbapro.blogspot.com On Thu, Oct 1, 2009 at 2:59 PM, prabhat kumar aim.prab...@gmail.comwrote: innodb. Since, If there are many modifications of the data, it's said that InnoDB works faster because it uses row locking instead of table locking, like MyISAM. However, if there are mainly SELECT statements, a MyISAM table might be faster. On Thu, Oct 1, 2009 at 2:33 PM, F.A.I.Z.A.L sac.fai...@gmail.com wrote: 1 doubt the front end application is lab ticketing system. so user will create many ticket. iam expecting per day 200k ticket user will create. so which storage engine is best to use. innodb or myisam..? Best Regards Faizal S GSM : 9840118673 Blog: http://oradbapro.blogspot.com On Thu, Oct 1, 2009 at 2:10 PM, F.A.I.Z.A.L sac.fai...@gmail.comwrote: thanks kumar. Storage in datadir contain only one location.is it possible to have multiple location to store datafiles.if yes, how? what is the different between storage engine and tablespace in mysql? account creation *create user 'test'@'%' identified by 'test'; grant usage on test.* to 'test'@'%' identified by 'test'; grant select,insert,update,delete,create,drop on test.* to 'test'@'%'; * I used 'USAGE' clause this time but even after that i can able to see other schema and i can able to 'select' tables from other schema. how i can restrict this. only default schema should be accessible to the user thanks in advance.. Best Regards Faizal S GSM : 9840118673 Blog: http://oradbapro.blogspot.com On Thu, Oct 1, 2009 at 1:13 PM, prabhat kumar aim.prab...@gmail.comwrote: A. For transaction *innoDB* is best. B. *ALTER TABLE table_name ENGINE = InnoDB; * but* *if you tons of tables so better export all tables in file and replace all occurs of *myisam* with *InnoDB *the import it. and enable InnoDB engine. http://www.linux.com/archive/articles/46370 C. 1. Stop MySQL. 2. Copy current mysql dir to new drive. 3. Modify the current location with new location in /etc/my.cnf file , datadir variable. 4. Start MySQL. note: *datadir=/path/to/datadir/mysq*l http://docdb.fnal.gov/doc/my.cnf.html On Thu, Oct 1, 2009 at 12:53 PM, F.A.I.Z.A.L sac.fai...@gmail.comwrote: hi Kumar thanks for your info.. another doubt.. which storage engine is best for transaction.. in my server. the default engine is myisam. now i changed one of my schema to innoDB. is that correct. now i want to create another schema in different location. how to create that? because current mountpoint space is very less, in this situation how can move existing schemas to new location? thanks in advance.. Best Regards Faizal S GSM : 9840118673 Blog: http://oradbapro.blogspot.com On Thu, Oct 1, 2009 at 12:28 PM, prabhat kumar aim.prab...@gmail.com wrote: a. INFORMATION_SCHEMA is the information database ie metadata, the place that stores information about all the other databases that the MySQL server maintains. Inside INFORMATION_SCHEMA there are several read-only tables. They are actually views, not base tables, so there are no files associated with them. Each MySQL user has the right to access these tables, but can see only the rows in the tables that correspond to objects for which the user has the proper access privileges. http://dev.mysql.com/doc/refman/5.0/en/information-schema.html b. Its depend on your requirement like your user will perform only DML query or also want DDL operations. http://dev.mysql.com/doc/refman/5.1/en/privileges-provided.html On Thu, Oct 1, 2009 at 12:08 PM, F.A.I.Z.A.L sac.fai...@gmail.comwrote: thanks kumar.. now its working i have another doubt i created an user with limited privilege on particular schema. schema name: test *mysql create user 'test'@'%' identified by 'test'; mysql grant select,insert,update,delete,create,drop on test.* to 'test'@'%';* after that i login with 'test' user using mysql query browser. but i can able to see other schemas like 'information_Schema' and 'test_schema' created by other. how can i avoid this. i want to see only my default schema.. 2. for created new mysql database or schema what are the privileges are required.. please help.. Best Regards Faizal S GSM : 9840118673 Blog:
login issue..pls help
Hi iam getting the following error while login into mysql server. andd141# mysql -u root ERROR 1045 (28000): Access denied for user 'root'@'localhost' (using password: NO) Can someone please help me understand why I am not able to login from root? Best Regards Faizal S GSM : 9840118673 Blog: http://oradbapro.blogspot.com
Re: login issue..pls help
Use : mysql -u root -p (it will prompt for password) and if its not a local host also add -h ipaddress On Thu, Oct 1, 2009 at 11:01 AM, F.A.I.Z.A.L sac.fai...@gmail.com wrote: Hi iam getting the following error while login into mysql server. andd141# mysql -u root ERROR 1045 (28000): Access denied for user 'root'@'localhost' (using password: NO) Can someone please help me understand why I am not able to login from root? Best Regards Faizal S GSM : 9840118673 Blog: http://oradbapro.blogspot.com -- Best Regards, Prabhat Kumar MySQL DBA Datavail-India Mumbai Mobile : 91-9987681929 www.datavail.com My Blog: http://adminlinux.blogspot.com My LinkedIn: http://www.linkedin.com/in/profileprabhat
Re: pls help clarify dox: InnoDB Consistent Non-Locking Read behavior
On May 9, 2008, at 6:58 AM, Chris Pirazzi wrote: Hello, I _thought_ I knew how InnoDB worked, but due to a recent mysql doc change, I am no longer sure--the change made the dox significantly less clear, and potentially code-breaking. Please can someone tell me the real behavior of InnoDB in the following case, and ideally clarify the dox too... The question comes up in the first paragraph of 13.5.10.4. Consistent Non-Locking Read: http://dev.mysql.com/doc/refman/5.1/en/innodb-consistent-read.html A consistent read means that InnoDB uses multi-versioning to present to a query a snapshot of the database at a point in time. The query sees the changes made by those transactions that committed before that point of time, and no changes made by later or uncommitted transactions. The exception to this rule is that the query sees the changes made by earlier statements within the same transaction. Note that the exception to the rule causes the following anomaly: if you update some rows in a table, a SELECT will see the latest version of the updated rows, but it might also see older versions of any rows. If other users simultaneously update the same table, the anomaly means that you may see the table in a state that never existed in the database. The unclear wording is if you update some rows in a table, a SELECT will see the latest version of the updated rows, but it might also see older versions of any rows What does the author mean by any rows? Do you mean that when you do a SELECT, you may get back a result for your modified row, AND you may ALSO get back a result for an older version of the SAME row? This is very very important as it affects how we can use non-locking read at the lowest level of our code. You may wonder why I suspect this case...it's all because of what the text USED to say: (change made by user paul on 2007-08-23 16:38:39 +0200 (Thu, 23 Aug 2007) http://lists.mysql.com/commits/32967?f=plain ) -see the latest version of the updated rows, while it sees the -old version of other rows. If other users simultaneously update -the same table, the anomaly means that you may see the table in -a state that never existed in the database. +see the latest version of the updated rows, but it might also +see older versions of any rows. If other users simultaneously +update the same table, the anomaly means that you may see the +table in a state that never existed in the database. the old wording the old versions of OTHER rows was crystal clear: you will only see one copy of your new row, and it will be your new copy. the new wording is unclear. but the new wording makes me wonder if InnoDB could return multiple copies of the rows I have modified. Can someone clarify the actual InnoDB behavior? Could someone suggest a clearer wording for the dox that 1) expresses the actual InnoDB behavior 2) covers whatever case Paul was trying to cover when he made that change? Thanks for your time! Hopefully we can clarify this for all mysql users! The background for this change is Bug#30184: http://bugs.mysql.com/bug.php?id=30184 -- Paul DuBois, MySQL Documentation Team Madison, Wisconsin, USA www.mysql.com -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/[EMAIL PROTECTED]
pls help clarify dox: InnoDB Consistent Non-Locking Read behavior
Hello, I _thought_ I knew how InnoDB worked, but due to a recent mysql doc change, I am no longer sure--the change made the dox significantly less clear, and potentially code-breaking. Please can someone tell me the real behavior of InnoDB in the following case, and ideally clarify the dox too... The question comes up in the first paragraph of 13.5.10.4. Consistent Non-Locking Read: http://dev.mysql.com/doc/refman/5.1/en/innodb-consistent-read.html A consistent read means that InnoDB uses multi-versioning to present to a query a snapshot of the database at a point in time. The query sees the changes made by those transactions that committed before that point of time, and no changes made by later or uncommitted transactions. The exception to this rule is that the query sees the changes made by earlier statements within the same transaction. Note that the exception to the rule causes the following anomaly: if you update some rows in a table, a SELECT will see the latest version of the updated rows, but it might also see older versions of any rows. If other users simultaneously update the same table, the anomaly means that you may see the table in a state that never existed in the database. The unclear wording is if you update some rows in a table, a SELECT will see the latest version of the updated rows, but it might also see older versions of any rows What does the author mean by any rows? Do you mean that when you do a SELECT, you may get back a result for your modified row, AND you may ALSO get back a result for an older version of the SAME row? This is very very important as it affects how we can use non-locking read at the lowest level of our code. You may wonder why I suspect this case...it's all because of what the text USED to say: (change made by user paul on 2007-08-23 16:38:39 +0200 (Thu, 23 Aug 2007) http://lists.mysql.com/commits/32967?f=plain ) -see the latest version of the updated rows, while it sees the -old version of other rows. If other users simultaneously update -the same table, the anomaly means that you may see the table in -a state that never existed in the database. +see the latest version of the updated rows, but it might also +see older versions of any rows. If other users simultaneously +update the same table, the anomaly means that you may see the +table in a state that never existed in the database. the old wording the old versions of OTHER rows was crystal clear: you will only see one copy of your new row, and it will be your new copy. the new wording is unclear. but the new wording makes me wonder if InnoDB could return multiple copies of the rows I have modified. Can someone clarify the actual InnoDB behavior? Could someone suggest a clearer wording for the dox that 1) expresses the actual InnoDB behavior 2) covers whatever case Paul was trying to cover when he made that change? Thanks for your time! Hopefully we can clarify this for all mysql users! -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/[EMAIL PROTECTED]
Re: Frequently MyISAM TABLE corruption.....Pls help
hello I am still facing the same problem.. MyISAM table corruptionI am getting following errors mysql use DB1; Reading table information for completion of table and column names You can turn off this feature to get a quicker startup with -A Database changed mysql check table tables1; +--+---+--+-+ | Table| Op| Msg_type | Msg_text | +--+---+--+-+ | DB1.tables1 | check | error| Found wrong record at 967175516 | | DB1.tables1 | check | error| Corrupt | +--+---+--+-+ 2 rows in set (8.53 sec) == ERROR LOG == Version: '5.0.27-standard-log' socket: '/var/lib/mysql/mysql.sock' port: 3306 MySQL Community Edition - Standard (GPL) 070702 1:16:18 [ERROR] /usr/sbin/mysqld: Table 'tables1' is marked as crashed and should be repaired 070702 1:16:18 [ERROR] /usr/sbin/mysqld: Sort aborted 070702 1:19:43 [ERROR] Got error 127 when reading table './DB1/tables1' 070702 1:19:54 [ERROR] Got error 127 when reading table './DB1/tables1' 070702 1:20:05 [ERROR] Got error 127 when reading table './DB1/tables1' 070702 1:20:22 [ERROR] Got error 127 when reading table './DB1/tables1' 070702 1:21:24 [ERROR] Got error 127 when reading table './DB1/tables1' 070702 1:22:16 [ERROR] Got error 127 when reading table './DB1/tables1' 070702 1:22:17 [ERROR] /usr/sbin/mysqld: Table 'tables1' is marked as crashed and should be repaired 070702 1:22:17 [ERROR] /usr/sbin/mysqld: Sort aborted Database changed mysql repair table tables1; +--++--+-+ | Table| Op | Msg_type | Msg_text | +--++--+-+ | DB1.tables1 | repair | info | Key 1 - Found wrong stored record at 967175516 | | DB1.tables1 | repair | info | Found block that points outside data file at 967175964 | | DB1.tables1 | repair | info | Found block that points outside data file at 967176068 | | DB1.tables1 | repair | info | Found block that points outside data file at 967176168 | | DB1.tables1 | repair | info | Found block that points outside data file at 967176296 | | DB1.tables1 | repair | info | Found block that points outside data file at 967176484 | | DB1.tables1 | repair | info | Found block that points outside data file at 967176588 | | DB1.tables1 | repair | info | Found block with too small length at 967177484; Skipped | | DB1.tables1 | repair | warning | Number of rows changed from 186252 to 186251| | DB1.tables1 | repair | status | OK | +--++--+-+ 10 rows in set (1 min 27.77 sec) PLS help me ASAP..Its frequently corrupted..It is very important table Regards, Nilnandan Joshi DBA-INDIA Nilnandan wrote: Hello Gerald, Data_lengthMax_data_length Index_length 596483288281474976710655 33758208 580 MB is table size and 32MB is index size. The default maximum MyISAM size is 4GB. Now, tell me where is an issue? regards, Nilnandan Joshi DBA-SDU Juriscape Gerald L. Clark-2 wrote: Nilnandan wrote: Hello all, I have one server which has mysql 5.0.27 installed. There is one table named table1. that table has 122000 records..It has 114 fields and 22 indexes. Now this table always been corrupt. I have try to found the solution but i couldn't. Pls help me ASAP. I have used CHECK and REPAIR option I have given here the output. 070509 4:06:17 [ERROR] /usr/sbin/mysqld: Table 'table1' is marked as crashed and should be repaired 070509 4:06:17 [ERROR] /usr/sbin/mysqld: Sort aborted How big is the index file? the data file? Has either reached the file size limit of your filesystem, or the default maximum MyISAM size? -- Gerald L. Clark Supplier Systems Corporation -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/[EMAIL PROTECTED] -- View this message in context: http://www.nabble.com/Frequently-MyISAM-TABLE-corruption.Pls-help-tf3715472.html#a11391620 Sent from the MySQL - General mailing list archive at Nabble.com. -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/[EMAIL PROTECTED]
Re: Frequently MyISAM TABLE corruption.....Pls help
Hi, Pls try altering the engine type from 'MyISAM' to 'InnoDB' mysql alter table `tablename` ENGINE='InnoDB'; Just try out. I'm not sure. But there are issues over 'MyISAM' engine' and table corruption. Pls look into the link http://dev.mysql.com/doc/refman/5.0/en/corrupted-myisam-tables.html about mysqleers comments. Thanks ViSolve DB Team. - Original Message - From: Nilnandan [EMAIL PROTECTED] To: mysql@lists.mysql.com Sent: Monday, July 02, 2007 3:58 PM Subject: Re: Frequently MyISAM TABLE corruption.Pls help hello I am still facing the same problem.. MyISAM table corruptionI am getting following errors mysql use DB1; Reading table information for completion of table and column names You can turn off this feature to get a quicker startup with -A Database changed mysql check table tables1; +--+---+--+-+ | Table| Op| Msg_type | Msg_text | +--+---+--+-+ | DB1.tables1 | check | error| Found wrong record at 967175516 | | DB1.tables1 | check | error| Corrupt | +--+---+--+-+ 2 rows in set (8.53 sec) == ERROR LOG == Version: '5.0.27-standard-log' socket: '/var/lib/mysql/mysql.sock' port: 3306 MySQL Community Edition - Standard (GPL) 070702 1:16:18 [ERROR] /usr/sbin/mysqld: Table 'tables1' is marked as crashed and should be repaired 070702 1:16:18 [ERROR] /usr/sbin/mysqld: Sort aborted 070702 1:19:43 [ERROR] Got error 127 when reading table './DB1/tables1' 070702 1:19:54 [ERROR] Got error 127 when reading table './DB1/tables1' 070702 1:20:05 [ERROR] Got error 127 when reading table './DB1/tables1' 070702 1:20:22 [ERROR] Got error 127 when reading table './DB1/tables1' 070702 1:21:24 [ERROR] Got error 127 when reading table './DB1/tables1' 070702 1:22:16 [ERROR] Got error 127 when reading table './DB1/tables1' 070702 1:22:17 [ERROR] /usr/sbin/mysqld: Table 'tables1' is marked as crashed and should be repaired 070702 1:22:17 [ERROR] /usr/sbin/mysqld: Sort aborted Database changed mysql repair table tables1; +--++--+-+ | Table| Op | Msg_type | Msg_text | +--++--+-+ | DB1.tables1 | repair | info | Key 1 - Found wrong stored record at 967175516 | | DB1.tables1 | repair | info | Found block that points outside data file at 967175964 | | DB1.tables1 | repair | info | Found block that points outside data file at 967176068 | | DB1.tables1 | repair | info | Found block that points outside data file at 967176168 | | DB1.tables1 | repair | info | Found block that points outside data file at 967176296 | | DB1.tables1 | repair | info | Found block that points outside data file at 967176484 | | DB1.tables1 | repair | info | Found block that points outside data file at 967176588 | | DB1.tables1 | repair | info | Found block with too small length at 967177484; Skipped | | DB1.tables1 | repair | warning | Number of rows changed from 186252 to 186251| | DB1.tables1 | repair | status | OK | +--++--+-+ 10 rows in set (1 min 27.77 sec) PLS help me ASAP..Its frequently corrupted..It is very important table Regards, Nilnandan Joshi DBA-INDIA Nilnandan wrote: Hello Gerald, Data_lengthMax_data_length Index_length 596483288281474976710655 33758208 580 MB is table size and 32MB is index size. The default maximum MyISAM size is 4GB. Now, tell me where is an issue? regards, Nilnandan Joshi DBA-SDU Juriscape Gerald L. Clark-2 wrote: Nilnandan wrote: Hello all, I have one server which has mysql 5.0.27 installed. There is one table named table1. that table has 122000 records..It has 114 fields and 22 indexes. Now this table always been corrupt. I have try to found the solution but i couldn't. Pls help me ASAP. I have used CHECK and REPAIR option I have given here the output. 070509 4:06:17 [ERROR] /usr/sbin/mysqld: Table 'table1' is marked as crashed and should be repaired 070509 4:06:17 [ERROR] /usr/sbin/mysqld: Sort aborted How big is the index file? the data file? Has either reached the file size limit of your filesystem, or the default maximum MyISAM size? -- Gerald L. Clark Supplier Systems Corporation -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/[EMAIL PROTECTED
Re: Frequently MyISAM TABLE corruption.....Pls help
Hello Gerald, Data_lengthMax_data_length Index_length 596483288281474976710655 33758208 580 MB is table size and 32MB is index size. The default maximum MyISAM size is 4GB. Now, tell me where is an issue? regards, Nilnandan Joshi DBA-SDU Juriscape Gerald L. Clark-2 wrote: Nilnandan wrote: Hello all, I have one server which has mysql 5.0.27 installed. There is one table named table1. that table has 122000 records..It has 114 fields and 22 indexes. Now this table always been corrupt. I have try to found the solution but i couldn't. Pls help me ASAP. I have used CHECK and REPAIR option I have given here the output. 070509 4:06:17 [ERROR] /usr/sbin/mysqld: Table 'table1' is marked as crashed and should be repaired 070509 4:06:17 [ERROR] /usr/sbin/mysqld: Sort aborted How big is the index file? the data file? Has either reached the file size limit of your filesystem, or the default maximum MyISAM size? -- Gerald L. Clark Supplier Systems Corporation -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/[EMAIL PROTECTED] -- View this message in context: http://www.nabble.com/Frequently-MyISAM-TABLE-corruption.Pls-help-tf3715472.html#a10412877 Sent from the MySQL - General mailing list archive at Nabble.com. -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/[EMAIL PROTECTED]
Re: Frequently MyISAM TABLE corruption.....Pls help
Some additional resources for fixing corrupt MyISAM tables: http://dev.mysql.com/doc/refman/5.0/en/myisam-table-problems.html http://dev.mysql.com/doc/refman/5.0/en/myisamchk.html http://dev.mysql.com/doc/refman/5.0/en/table-maintenance.html , especially: http://dev.mysql.com/doc/refman/5.0/en/repair.html I don't know for sure as it will depend on your data and your indices, but with 580 MB of data, 122000 records, and 22 indices, I would expect that your index file should be larger than it is (just 32 MB). I would suggest that perhaps your index file is corrupt and needs to be rebuilt - look at the stage 2 and stage 3 procedures mentioned in the repair page (last URL above). Be sure to make backup copies! Read it and understand it before you do it! Best of luck, Dan On 5/10/07, Nilnandan [EMAIL PROTECTED] wrote: Hello Gerald, Data_lengthMax_data_length Index_length 596483288281474976710655 33758208 580 MB is table size and 32MB is index size. The default maximum MyISAM size is 4GB. Now, tell me where is an issue? regards, Nilnandan Joshi DBA-SDU Juriscape Gerald L. Clark-2 wrote: Nilnandan wrote: Hello all, I have one server which has mysql 5.0.27 installed. There is one table named table1. that table has 122000 records..It has 114 fields and 22 indexes. Now this table always been corrupt. I have try to found the solution but i couldn't. Pls help me ASAP. I have used CHECK and REPAIR option I have given here the output. 070509 4:06:17 [ERROR] /usr/sbin/mysqld: Table 'table1' is marked as crashed and should be repaired 070509 4:06:17 [ERROR] /usr/sbin/mysqld: Sort aborted How big is the index file? the data file? Has either reached the file size limit of your filesystem, or the default maximum MyISAM size? -- Gerald L. Clark Supplier Systems Corporation -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/[EMAIL PROTECTED] -- View this message in context: http://www.nabble.com/Frequently-MyISAM-TABLE-corruption.Pls-help-tf3715472.html#a10412877 Sent from the MySQL - General mailing list archive at Nabble.com. -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/[EMAIL PROTECTED]
Frequently MyISAM TABLE corruption.....Pls help
Hello all, I have one server which has mysql 5.0.27 installed. There is one table named table1. that table has 122000 records..It has 114 fields and 22 indexes. Now this table always been corrupt. I have try to found the solution but i couldn't. Pls help me ASAP. I have used CHECK and REPAIR option I have given here the output. 070509 4:06:17 [ERROR] /usr/sbin/mysqld: Table 'table1' is marked as crashed and should be repaired 070509 4:06:17 [ERROR] /usr/sbin/mysqld: Sort aborted Database changed mysql check table table1; +--+---+--++ | Table| Op| Msg_type | Msg_text | +--+---+--++ | DB1.table1 | check | error| Wrong bytesec: 111-110-115 at linkstart: 583497784 | | DB1.table1 | check | error| Corrupt | +--+---+--++ 2 rows in set (4.41 sec) mysql repair table table1; +--++--+-+ | Table| Op | Msg_type | Msg_text | +--++--+-+ | DB1.table1 | repair | info | Wrong bytesec: 111-110-115 at 583497784; Skipped| | DB1.table1 | repair | info | Found block that points outside data file at 583497848 | | DB1.table1 | repair | info | Found block that points outside data file at 583497912 | | DB1.table1 | repair | info | Found block with too small length at 583498656; Skipped | | DB1.table1 | repair | info | Found block with too small length at 583498964; Skipped | | DB1.table1 | repair | info | Found block with too small length at 583498988; Skipped | | DB1.table1 | repair | info | Found block with too small length at 583499040; Skipped | | DB1.table1 | repair | info | Found block with too small length at 583499120; Skipped | | DB1.table1 | repair | info | Found block with too small length at 583499176; Skipped | | DB1.table1 | repair | info | Found block with too small length at 583499204; Skipped | | DB1.table1 | repair | info | Found block with too small length at 583499312; Skipped | | DB1.table1 | repair | info | Found block with too small length at 583499368; Skipped | | DB1.table1 | repair | info | Found block with too small length at 583499396; Skipped | | DB1.table1 | repair | info | Found block with too small length at 583499420; Skipped | | DB1.table1 | repair | info | Found block with too small length at 583499448; Skipped | | DB1.table1 | repair | info | Found block with too small length at 583499504; Skipped | | DB1.table1 | repair | status | I have also used myisamchk command and its output is: Checking MyISAM file: /var/lib/mysql5/DB1/table1.MYI Data records: 122089 Deleted blocks: 0 - check file-size - check record delete-chain - check key delete-chain - check index reference - check data record references index: 1 - check data record references index: 2 - check data record references index: 3 - check data record references index: 4 - check data record references index: 5 - check data record references index: 6 - check data record references index: 7 - check data record references index: 8 - check data record references index: 9 - check data record references index: 10 - check data record references index: 11 - check data record references index: 12 - check data record references index: 13 - check data record references index: 14 - check data record references index: 15 - check data record references index: 16 - check data record references index: 17 - check data record references index: 18 - check data record references index: 19 - check data record references index: 20 - check data record references index: 21 - check data record references index: 22 - check records and index references - recovering (with sort) MyISAM-table '/var/lib/mysql5/DB1/table1.MYI' Data records: 122089 - Fixing index 1 - Fixing index 2 - Fixing index 3 - Fixing index 4 - Fixing index 5 - Fixing index 6 - Fixing index 7 - Fixing index 8 - Fixing index 9 - Fixing index 10 - Fixing index 11 - Fixing index 12 - Fixing index 13 - Fixing index 14 - Fixing index 15 - Fixing index 16 - Fixing index 17 - Fixing index 18 - Fixing index 19 - Fixing index 20 - Fixing index 21 - Fixing index 22 So, pls help me ASAP.Thanks in advance... regards, Nilnandan Joshi DBA - INDIA -- View this message in context: http://www.nabble.com/Frequently-MyISAM-TABLE-corruption.Pls-help-tf3715472.html#a10393479 Sent from the MySQL - General mailing list archive at Nabble.com. -- MySQL General Mailing List For list archives: http
Re: Frequently MyISAM TABLE corruption.....Pls help
Nilnandan wrote: Hello all, I have one server which has mysql 5.0.27 installed. There is one table named table1. that table has 122000 records..It has 114 fields and 22 indexes. Now this table always been corrupt. I have try to found the solution but i couldn't. Pls help me ASAP. I have used CHECK and REPAIR option I have given here the output. 070509 4:06:17 [ERROR] /usr/sbin/mysqld: Table 'table1' is marked as crashed and should be repaired 070509 4:06:17 [ERROR] /usr/sbin/mysqld: Sort aborted How big is the index file? the data file? Has either reached the file size limit of your filesystem, or the default maximum MyISAM size? -- Gerald L. Clark Supplier Systems Corporation -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/[EMAIL PROTECTED]
Again Doubt on Query pls help (Doubt not cleared)
i have to write one query DivisionUnitsYear a 200 2004 a 300 2005 b 500 2004 b 800 2005 b 900 2006 c 100 2004 From these values i want to retreive as like this DivisionUnitsYear a200 2004 a100 2005 b500 2004 b300 2005 b100 2006 c100 2004 Group By division names and year with difference. Means difference of the Units values by year can u give me this query. -- veerabhadrarao narra, +91-988-556-5556 I-ONE TECH LABS Pvt Ltd. HYDERABAD, INDIA -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/[EMAIL PROTECTED]
Re: Again Doubt on Query pls help (Doubt not cleared)
I think this is what you want to do: SELECT t1.Division,t1.year, t1.units this_year_units, t2.units last_year_units, case when t2.units is null then t1.units else (t1.units-t2.units) end as Difference_Units FROM `narra_table` t1 left join narra_table t2 on (t1.Division=t2.Division) and (t1.Year=t2.Year+1) hope this helps Veerabhadrarao Narra wrote: i have to write one query DivisionUnitsYear a 200 2004 a 300 2005 b 500 2004 b 800 2005 b 900 2006 c 100 2004 From these values i want to retreive as like this DivisionUnitsYear a200 2004 a100 2005 b500 2004 b300 2005 b100 2006 c100 2004 Group By division names and year with difference. Means difference of the Units values by year can u give me this query. -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/[EMAIL PROTECTED]
Re: Table Locking Problem? Very Slow MyISAM DB - PLS HELP!
When the server begins to slow down, what does top reveal? Andrew Nelson wrote: The reason I ask is because eight select statements should not bog down a production server. On the MySQL side, is anything being written to the slow query log? On the application side is there any virus scanning or similar activity being performed? Does iostat show any heavy reading or writing activity? Is memory being swapped? What is the server load? Do you have a high wait time or is CPU usage the only symptom? Nothing is being written very often.. Maybe a few email accounts added/modified each day. iostat shows very small disk activity (around 0.4Mb/s average). No memory is being swapped.. We do have a high wait time - the email is queueing up and the website interface to update the database (in PHP) times out when it's busy and I figured it's the CPU - I don't get what is so computational, the Databases are quite small (it's just a userbase - about 200Kb). I appreciate your help, Thanks, Andrew. Andrew Nelson wrote: Hi Victor, How did you deduce that the database server is the bottleneck? Are all your processes running on the same machine? Because 'ps -aux' shows it running at 94% of the CPU and when I stop/start the mysql server, it seems to be ok again for another hour. Any ideas? Andrew Nelson wrote: Hi, I have a MySQL 3.23.55 server managing accounts on my exim mail server.. The table type on all tables MyISAM.. I have the MTA performing various queries for each incoming email - determining mail aliases, vacation messages and filtering rules etc but they're all pretty much SELECT statements.. I know this isn't ideal and i've started replacing runtime queries with processes that search text files instead (generated every few minutes etc) but it should still be able to cope I would have thought? At it's busiest, it's performing about 8 trivial queries per second. It's a Xeon 2.6Ghz machine with 1Gb of RAM (running on FreeBSD) but it's grinding to a halt. I have to keep stopping and restarting the MySQL server to regain speed. As there's many processes trying to access the same tables to do SELECTs I thought it might be a locking issue.. BDB didn't seem to help - can anyone suggest something that might help? Thanks, Andrew. -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/[EMAIL PROTECTED]
RE: Table Locking Problem? Very Slow MyISAM DB - PLS HELP!
Andrew, DO you have the slow query log turned on? What does one of your tables look like and the one of the 8 queries you talk about? It very well could just be a index problem. And what is the size of the data. Donny -Original Message- From: Andrew Nelson [mailto:[EMAIL PROTECTED] Sent: Wednesday, December 01, 2004 11:22 PM To: [EMAIL PROTECTED]; [EMAIL PROTECTED] Subject: Re: Table Locking Problem? Very Slow MyISAM DB - PLS HELP! The reason I ask is because eight select statements should not bog down a production server. On the MySQL side, is anything being written to the slow query log? On the application side is there any virus scanning or similar activity being performed? Does iostat show any heavy reading or writing activity? Is memory being swapped? What is the server load? Do you have a high wait time or is CPU usage the only symptom? Nothing is being written very often.. Maybe a few email accounts added/modified each day. iostat shows very small disk activity (around 0.4Mb/s average). No memory is being swapped.. We do have a high wait time - the email is queueing up and the website interface to update the database (in PHP) times out when it's busy and I figured it's the CPU - I don't get what is so computational, the Databases are quite small (it's just a userbase - about 200Kb). I appreciate your help, Thanks, Andrew. Andrew Nelson wrote: Hi Victor, How did you deduce that the database server is the bottleneck? Are all your processes running on the same machine? Because 'ps -aux' shows it running at 94% of the CPU and when I stop/start the mysql server, it seems to be ok again for another hour. Any ideas? Andrew Nelson wrote: Hi, I have a MySQL 3.23.55 server managing accounts on my exim mail server.. The table type on all tables MyISAM.. I have the MTA performing various queries for each incoming email - determining mail aliases, vacation messages and filtering rules etc but they're all pretty much SELECT statements.. I know this isn't ideal and i've started replacing runtime queries with processes that search text files instead (generated every few minutes etc) but it should still be able to cope I would have thought? At it's busiest, it's performing about 8 trivial queries per second. It's a Xeon 2.6Ghz machine with 1Gb of RAM (running on FreeBSD) but it's grinding to a halt. I have to keep stopping and restarting the MySQL server to regain speed. As there's many processes trying to access the same tables to do SELECTs I thought it might be a locking issue.. BDB didn't seem to help - can anyone suggest something that might help? Thanks, Andrew. -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe: http://lists.mysql.com/[EMAIL PROTECTED] -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/[EMAIL PROTECTED]
Re: Table Locking Problem? Very Slow MyISAM DB - PLS HELP!
How did you deduce that the database server is the bottleneck? Are all your processes running on the same machine? Andrew Nelson wrote: Hi, I have a MySQL 3.23.55 server managing accounts on my exim mail server.. The table type on all tables MyISAM.. I have the MTA performing various queries for each incoming email - determining mail aliases, vacation messages and filtering rules etc but they're all pretty much SELECT statements.. I know this isn't ideal and i've started replacing runtime queries with processes that search text files instead (generated every few minutes etc) but it should still be able to cope I would have thought? At it's busiest, it's performing about 8 trivial queries per second. It's a Xeon 2.6Ghz machine with 1Gb of RAM (running on FreeBSD) but it's grinding to a halt. I have to keep stopping and restarting the MySQL server to regain speed. As there's many processes trying to access the same tables to do SELECTs I thought it might be a locking issue.. BDB didn't seem to help - can anyone suggest something that might help? Thanks, Andrew. -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/[EMAIL PROTECTED]
Table Locking Problem? Very Slow MyISAM DB - PLS HELP!
Hi, I have a MySQL 3.23.55 server managing accounts on my exim mail server.. The table type on all tables MyISAM.. I have the MTA performing various queries for each incoming email - determining mail aliases, vacation messages and filtering rules etc but they're all pretty much SELECT statements.. I know this isn't ideal and i've started replacing runtime queries with processes that search text files instead (generated every few minutes etc) but it should still be able to cope I would have thought? At it's busiest, it's performing about 8 trivial queries per second. It's a Xeon 2.6Ghz machine with 1Gb of RAM (running on FreeBSD) but it's grinding to a halt. I have to keep stopping and restarting the MySQL server to regain speed. As there's many processes trying to access the same tables to do SELECTs I thought it might be a locking issue.. BDB didn't seem to help - can anyone suggest something that might help? Thanks, Andrew. -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/[EMAIL PROTECTED]
Re: Table Locking Problem? Very Slow MyISAM DB - PLS HELP!
Hi Victor, How did you deduce that the database server is the bottleneck? Are all your processes running on the same machine? Because 'ps -aux' shows it running at 94% of the CPU and when I stop/start the mysql server, it seems to be ok again for another hour. Any ideas? Andrew Nelson wrote: Hi, I have a MySQL 3.23.55 server managing accounts on my exim mail server.. The table type on all tables MyISAM.. I have the MTA performing various queries for each incoming email - determining mail aliases, vacation messages and filtering rules etc but they're all pretty much SELECT statements.. I know this isn't ideal and i've started replacing runtime queries with processes that search text files instead (generated every few minutes etc) but it should still be able to cope I would have thought? At it's busiest, it's performing about 8 trivial queries per second. It's a Xeon 2.6Ghz machine with 1Gb of RAM (running on FreeBSD) but it's grinding to a halt. I have to keep stopping and restarting the MySQL server to regain speed. As there's many processes trying to access the same tables to do SELECTs I thought it might be a locking issue.. BDB didn't seem to help - can anyone suggest something that might help? Thanks, Andrew. -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/[EMAIL PROTECTED]
Re: Table Locking Problem? Very Slow MyISAM DB - PLS HELP!
The reason I ask is because eight select statements should not bog down a production server. On the MySQL side, is anything being written to the slow query log? On the application side is there any virus scanning or similar activity being performed? Does iostat show any heavy reading or writing activity? Is memory being swapped? What is the server load? Do you have a high wait time or is CPU usage the only symptom? Andrew Nelson wrote: Hi Victor, How did you deduce that the database server is the bottleneck? Are all your processes running on the same machine? Because 'ps -aux' shows it running at 94% of the CPU and when I stop/start the mysql server, it seems to be ok again for another hour. Any ideas? Andrew Nelson wrote: Hi, I have a MySQL 3.23.55 server managing accounts on my exim mail server.. The table type on all tables MyISAM.. I have the MTA performing various queries for each incoming email - determining mail aliases, vacation messages and filtering rules etc but they're all pretty much SELECT statements.. I know this isn't ideal and i've started replacing runtime queries with processes that search text files instead (generated every few minutes etc) but it should still be able to cope I would have thought? At it's busiest, it's performing about 8 trivial queries per second. It's a Xeon 2.6Ghz machine with 1Gb of RAM (running on FreeBSD) but it's grinding to a halt. I have to keep stopping and restarting the MySQL server to regain speed. As there's many processes trying to access the same tables to do SELECTs I thought it might be a locking issue.. BDB didn't seem to help - can anyone suggest something that might help? Thanks, Andrew. -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/[EMAIL PROTECTED]
Re: Table Locking Problem? Very Slow MyISAM DB - PLS HELP!
The reason I ask is because eight select statements should not bog down a production server. On the MySQL side, is anything being written to the slow query log? On the application side is there any virus scanning or similar activity being performed? Does iostat show any heavy reading or writing activity? Is memory being swapped? What is the server load? Do you have a high wait time or is CPU usage the only symptom? Nothing is being written very often.. Maybe a few email accounts added/modified each day. iostat shows very small disk activity (around 0.4Mb/s average). No memory is being swapped.. We do have a high wait time - the email is queueing up and the website interface to update the database (in PHP) times out when it's busy and I figured it's the CPU - I don't get what is so computational, the Databases are quite small (it's just a userbase - about 200Kb). I appreciate your help, Thanks, Andrew. Andrew Nelson wrote: Hi Victor, How did you deduce that the database server is the bottleneck? Are all your processes running on the same machine? Because 'ps -aux' shows it running at 94% of the CPU and when I stop/start the mysql server, it seems to be ok again for another hour. Any ideas? Andrew Nelson wrote: Hi, I have a MySQL 3.23.55 server managing accounts on my exim mail server.. The table type on all tables MyISAM.. I have the MTA performing various queries for each incoming email - determining mail aliases, vacation messages and filtering rules etc but they're all pretty much SELECT statements.. I know this isn't ideal and i've started replacing runtime queries with processes that search text files instead (generated every few minutes etc) but it should still be able to cope I would have thought? At it's busiest, it's performing about 8 trivial queries per second. It's a Xeon 2.6Ghz machine with 1Gb of RAM (running on FreeBSD) but it's grinding to a halt. I have to keep stopping and restarting the MySQL server to regain speed. As there's many processes trying to access the same tables to do SELECTs I thought it might be a locking issue.. BDB didn't seem to help - can anyone suggest something that might help? Thanks, Andrew. -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/[EMAIL PROTECTED]
Fw: pls help ...............
- Original Message - From: CurlyBraces Technologies ( Pvt ) Ltd To: [EMAIL PROTECTED] Sent: Tuesday, February 24, 2004 12:05 PM Subject: pls help ... hi , when i try to get mysql data to the web browser via php , always it is showing Parse error: parse error, unexpected T_LNUMBER, expecting ',' or ';' in /var/www/html/smsc/test1.php on line 14 error message. but i tried to rectify the essage , i couldn't. can some body help me to solve the problem ? thanx in advance curlys -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/[EMAIL PROTECTED]
Re: pls help ...............
there must be some problem in concatenation of strings and number variables. If you can send the lines, we'll be able to suggest the exact change. Hope that helps Nitin - Original Message - From: CurlyBraces Technologies ( Pvt ) Ltd To: [EMAIL PROTECTED] Sent: Tuesday, February 24, 2004 12:08 PM Subject: Fw: pls help ... - Original Message - From: CurlyBraces Technologies ( Pvt ) Ltd To: [EMAIL PROTECTED] Sent: Tuesday, February 24, 2004 12:05 PM Subject: pls help ... hi , when i try to get mysql data to the web browser via php , always it is showing Parse error: parse error, unexpected T_LNUMBER, expecting ',' or ';' in /var/www/html/smsc/test1.php on line 14 error message. but i tried to rectify the essage , i couldn't. can some body help me to solve the problem ? thanx in advance curlys -- -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/[EMAIL PROTECTED]
Re: pls help ...............
90% of the time you forgot the ; on the line before the parse error. if not then I would need to see the code to help you. Respectfully, Ligaya Turmelle Nitin Mehta [EMAIL PROTECTED] wrote in message news:[EMAIL PROTECTED] there must be some problem in concatenation of strings and number variables. If you can send the lines, we'll be able to suggest the exact change. Hope that helps Nitin - Original Message - From: CurlyBraces Technologies ( Pvt ) Ltd To: [EMAIL PROTECTED] Sent: Tuesday, February 24, 2004 12:08 PM Subject: Fw: pls help ... - Original Message - From: CurlyBraces Technologies ( Pvt ) Ltd To: [EMAIL PROTECTED] Sent: Tuesday, February 24, 2004 12:05 PM Subject: pls help ... hi , when i try to get mysql data to the web browser via php , always it is showing Parse error: parse error, unexpected T_LNUMBER, expecting ',' or ';' in /var/www/html/smsc/test1.php on line 14 error message. but i tried to rectify the essage , i couldn't. can some body help me to solve the problem ? thanx in advance curlys -- -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe: http://lists.mysql.com/[EMAIL PROTECTED] -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/[EMAIL PROTECTED]
pls help ...............
hi , when i try to get mysql data to the web browser via php , always it is showing Parse error: parse error, unexpected T_LNUMBER, expecting ',' or ';' in /var/www/html/smsc/test1.php on line 14 error message. but i tried to rectify the essage , i couldn't. can some body help me to solve the problem ? thanx in advance curlys -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/[EMAIL PROTECTED]
Re: Lost connection to MySQL server during query - pls help
Hi Vanessa, I don't think I saw a reply to this... You can just reconnect to MySQL if you get this error. :-) Trying to send the query a second or third time may also make the client try to reconnect again. Hope that helps. Matt - Original Message - From: Kiky Sent: Friday, December 05, 2003 12:14 AM Subject: Lost connection to MySQL server during query - pls help Hi Guys, I have a problem with Error 2013 - Lost connection to MySQL server during query I'm using mysql 3.23.41 under Linux Mandrake, and mysql 4.0.15 under Win XP Pro. They turn out to have the same error. My problem is: I have a Java program which is actually a thread to send emails, so it keeps running all the time. When it's time to send emails, it will access MySQL database. Based on my wait_timeout in mysql, I think the connection closes after 8 hrs. If it's the time to send emails, and mysql has already closed the connection, the first connection attemp will throw an error Error 2013 - Lost connection to MySQL server during query * Is there a way that I can avoid this error? Or to make the connection keeps open all the the time? Any help / suggestions will be very much appreciated :) Thank you in advance. Rgds, Vanessa -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/[EMAIL PROTECTED]
Re: Lost connection to MySQL server during query - pls help
Thank you so much guys, for your attention and help. I'm upgrading my MySQL to 4.0.16 as suggested. Rgds, Vanessa - Original Message - From: Paul DuBois [EMAIL PROTECTED] To: Jay Blanchard [EMAIL PROTECTED]; miguel solorzano [EMAIL PROTECTED]; Kiky [EMAIL PROTECTED]; [EMAIL PROTECTED] Sent: Saturday, December 06, 2003 12:56 AM Subject: RE: Lost connection to MySQL server during query - pls help At 10:44 -0600 12/5/03, Jay Blanchard wrote: [snip] Please upgrade you MySQL Windows client to 4.0.16 there is a bug with net_read_timeout and net_write_timeout on 4.0.15 that disconnect when the query takes more than 30 secons. [/snip] Can you elaborate on this, we have not seen this problem See the Bugs fixed section of: http://www.mysql.com/doc/en/News-4.0.16.html -- Paul DuBois, Senior Technical Writer Madison, Wisconsin, USA MySQL AB, www.mysql.com Are you MySQL certified? http://www.mysql.com/certification/ -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/[EMAIL PROTECTED]
Re: Lost connection to MySQL server during query - pls help
At 14:14 5/12/2003 +0800, Kiky wrote: Hi Guys, I have a problem with Error 2013 - Lost connection to MySQL server during query I'm using mysql 3.23.41 under Linux Mandrake, and mysql 4.0.15 under Win XP Pro. They turn out to have the same error. Please upgrade you MySQL Windows client to 4.0.16 there is a bug with net_read_timeout and net_write_timeout on 4.0.15 that disconnect when the query takes more than 30 secons. -- Regards, For technical support contracts, visit https://order.mysql.com/ Are you MySQL certified?, http://www.mysql.com/certification/ Miguel Angel Solórzano [EMAIL PROTECTED] São Paulo - Brazil --- Outgoing mail is certified Virus Free. Checked by AVG anti-virus system (http://www.grisoft.com). Version: 6.0.547 / Virus Database: 340 - Release Date: 2/12/2003 -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/[EMAIL PROTECTED]
RE: Lost connection to MySQL server during query - pls help
[snip] Please upgrade you MySQL Windows client to 4.0.16 there is a bug with net_read_timeout and net_write_timeout on 4.0.15 that disconnect when the query takes more than 30 secons. [/snip] Can you elaborate on this, we have not seen this problem -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/[EMAIL PROTECTED]
Re: Lost connection to MySQL server during query - pls help
Kiky [EMAIL PROTECTED] wrote: I have a problem with Error 2013 - Lost connection to MySQL server during query I'm using mysql 3.23.41 under Linux Mandrake, and mysql 4.0.15 under Win XP Pro. They turn out to have the same error. My problem is: I have a Java program which is actually a thread to send emails, so it keeps running all the time. When it's time to send emails, it will access MySQL database. Based on my wait_timeout in mysql, I think the connection closes after 8 hrs. If it's the time to send emails, and mysql has already closed the connection, the first connection attemp will throw an error Error 2013 - Lost connection to MySQL server during query * Is there a way that I can avoid this error? Or to make the connection keeps open all the the time? You can increase value of wait_timeout variable. -- For technical support contracts, goto https://order.mysql.com/?ref=ensita This email is sponsored by Ensita.net http://www.ensita.net/ __ ___ ___ __ / |/ /_ __/ __/ __ \/ /Egor Egorov / /|_/ / // /\ \/ /_/ / /__ [EMAIL PROTECTED] /_/ /_/\_, /___/\___\_\___/ MySQL AB / Ensita.net ___/ www.mysql.com -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/[EMAIL PROTECTED]
RE: Lost connection to MySQL server during query - pls help
At 10:44 -0600 12/5/03, Jay Blanchard wrote: [snip] Please upgrade you MySQL Windows client to 4.0.16 there is a bug with net_read_timeout and net_write_timeout on 4.0.15 that disconnect when the query takes more than 30 secons. [/snip] Can you elaborate on this, we have not seen this problem See the Bugs fixed section of: http://www.mysql.com/doc/en/News-4.0.16.html -- Paul DuBois, Senior Technical Writer Madison, Wisconsin, USA MySQL AB, www.mysql.com Are you MySQL certified? http://www.mysql.com/certification/ -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/[EMAIL PROTECTED]
Lost connection to MySQL server during query - pls help
Hi Guys, I have a problem with Error 2013 - Lost connection to MySQL server during query I'm using mysql 3.23.41 under Linux Mandrake, and mysql 4.0.15 under Win XP Pro. They turn out to have the same error. My problem is: I have a Java program which is actually a thread to send emails, so it keeps running all the time. When it's time to send emails, it will access MySQL database. Based on my wait_timeout in mysql, I think the connection closes after 8 hrs. If it's the time to send emails, and mysql has already closed the connection, the first connection attemp will throw an error Error 2013 - Lost connection to MySQL server during query * Is there a way that I can avoid this error? Or to make the connection keeps open all the the time? Any help / suggestions will be very much appreciated :) Thank you in advance. Rgds, Vanessa
mySql... Pls help. ugent.
Hi, I would like to enquire abt Result datatype in MySql++. After getting songList, Result songList=dac.getSong(); 1. Is it possible for me to get a specific record out? 2. Is it possible for me to get a random record out? Regards, Petty_folly _ Download Norah Jones, Eminem and more! http://www.msn.com.sg/ringtones/ - Before posting, please check: http://www.mysql.com/manual.php (the manual) http://lists.mysql.com/ (the list archive) To request this thread, e-mail [EMAIL PROTECTED] To unsubscribe, e-mail [EMAIL PROTECTED] Trouble unsubscribing? Try: http://lists.mysql.com/php/unsubscribe.php
mySQL. Pls help. urgent
Hi, I would like to enquire abt Result datatype in MySql++. After getting songList, Result songList=dac.getSong(); 1. Is it possible for me to get a specific record out? 2. Is it possible for me to get a random record out? Regards, Petty_folly _ Download Norah Jones, Eminem and more! http://www.msn.com.sg/ringtones/ - Before posting, please check: http://www.mysql.com/manual.php (the manual) http://lists.mysql.com/ (the list archive) To request this thread, e-mail [EMAIL PROTECTED] To unsubscribe, e-mail [EMAIL PROTECTED] Trouble unsubscribing? Try: http://lists.mysql.com/php/unsubscribe.php
Pls Help !
I'm trying to figure out how can I do this: I'm designing a mysql db for a delivery service, and I encounter a problem each item delivered has a code associated and it also does some querys in other associated tables, I mean: Prod ID = 11 Prod = PizzaRecipeID=01 REcipe has the ingredients and each time a prod is ordered all the ingredients are added to a day total. I mean the employee enters the code for Pizza, then it adds the pizza individual ingredients to the day total, there are also combined orders, my problem is which is the best way to create an associated table with each of the item ingredients (they have to be editable), because they have unique recipes that are modifiable. I mean Products Recipes - ProdIdName ... (other fields) RecIDDesc 01Pizza 11 Pizza and here is my problem RecipesDesc RecId Item qtyestcost 11 Flour 11 Tomato each item must be edited so RecId will be repeated for many times, so by the end of the day if I want to know how much flour was spent I will have the same ingredient repeated all over in different recipes, which is the best way to overcome this ? I couldn't figure it out, Thank you, Ricardo Fitzgerald Web Developer __ Omni ICQ#: 37031810 Current ICQ status: + More ways to contact me __ - Before posting, please check: http://www.mysql.com/manual.php (the manual) http://lists.mysql.com/ (the list archive) To request this thread, e-mail [EMAIL PROTECTED] To unsubscribe, e-mail [EMAIL PROTECTED] Trouble unsubscribing? Try: http://lists.mysql.com/php/unsubscribe.php
pls. help me?
hi pls. help me , how to update 2 tables like this sql update table1 set table1.fld2 = table1.fld2 where table1.fld1 = table2.fld1 senthil.r _ Do You Yahoo!? Get your free @yahoo.com address at http://mail.yahoo.com - Before posting, please check: http://www.mysql.com/manual.php (the manual) http://lists.mysql.com/ (the list archive) To request this thread, e-mail [EMAIL PROTECTED] To unsubscribe, e-mail [EMAIL PROTECTED] Trouble unsubscribing? Try: http://lists.mysql.com/php/unsubscribe.php
pls. help me?
senthil, Friday, March 08, 2002, 10:51:51 AM, you wrote: s pls. help me , how to update 2 tables like this sql s update table1 set table1.fld2 = table1.fld2 where table1.fld1 = table2.fld1 MySQL doesn't currently support multi-table UPDATE statement. It is in our plans to support this in future: http://office.ensita.net/mysql/doc/N/u/Nutshell_4.1_development_release.html s senthil.r -- For technical support contracts, goto https://order.mysql.com/ This email is sponsored by Ensita.net http://www.ensita.net/ __ ___ ___ __ / |/ /_ __/ __/ __ \/ /Victoria Reznichenko / /|_/ / // /\ \/ /_/ / /__ [EMAIL PROTECTED] /_/ /_/\_, /___/\___\_\___/ MySQL AB / Ensita.net ___/ www.mysql.com - Before posting, please check: http://www.mysql.com/manual.php (the manual) http://lists.mysql.com/ (the list archive) To request this thread, e-mail [EMAIL PROTECTED] To unsubscribe, e-mail [EMAIL PROTECTED] Trouble unsubscribing? Try: http://lists.mysql.com/php/unsubscribe.php
PLS HELP TO ME
Hi, This is ILANGO RAMESH.from singapore.now i am doing one credit card project.now we are planning to using database MYSQL. now i want some dbouts.i am newer in database side.can u help me. now i am purchasing MYSQL DATABASE SERVER.OR I AM DOWNLOADING MYSQL SERVER ON SITE. INCASE DOWNLOADING IT'S ENOUGH HOW MANY DATA'S(BYTES) STORING IN DATABASE. PLS HELP TO ME. NOW I AM START WITH MY PROJECT.PLS HELP TO ME.PLS SEND MAIL TO ME.AS SOON AS POSSIBLE. THANKS RAMESH.I __ Do You Yahoo!? Check out Yahoo! Shopping and Yahoo! Auctions for all of your unique holiday gifts! Buy at http://shopping.yahoo.com or bid at http://auctions.yahoo.com - Before posting, please check: http://www.mysql.com/manual.php (the manual) http://lists.mysql.com/ (the list archive) To request this thread, e-mail [EMAIL PROTECTED] To unsubscribe, e-mail [EMAIL PROTECTED] Trouble unsubscribing? Try: http://lists.mysql.com/php/unsubscribe.php
RE: pls help !!
hi, Something is really wrong. Can you rebuild your indexes with command REPAIR TABLE tlcounter200109 ? What is your MySQL version? It should use index. i used mysql server version: 3.23.43 And i want to speed up the test . i choose a part of data from tlcounter200109 ( 56463703 records ) to form a smaller data table tlcounter0105 (10627007 records) . However, it didnot any improvement after ran yr sugguested command repair tlcounter0105 ( pls see below in detail) . Would U give me more advice ? show index from tlcounter0105; +---++-+--+- +---+-+--++-+ | Table | Non_unique | Key_name| Seq_in_index | Column_name | Collation | Cardinality | Sub_part | Packed | Comment | +---++-+--+- +---+-+--++-+ | tlcounter0105 | 1 | timerecordindex |1 | timerecord | A | 120 | NULL | NULL | | +---++-+--+- +---+-+--++-+ 1 row in set (0.00 sec) mysql repair table tlcounter0105 ; +-++--+--+ | Table | Op | Msg_type | Msg_text | +-++--+--+ | terayon200109.tlcounter0105 | repair | status | OK | +-++--+--+ 1 row in set (1 min 40.58 sec) mysql explain select * from tlcounter0105 where timerecord = '010901'; +---+--+-+--+-+--+-- ++ | table | type | possible_keys | key | key_len | ref | rows | Extra | +---+--+-+--+-+--+-- ++ | tlcounter0105 | ALL | timerecordindex | NULL |NULL | NULL | 10627007 | where used | +---+--+-+--+-+--+-- ++ 1 row in set (0.00 sec) mysql -Original Message- From: Tonu Samuel [mailto:[EMAIL PROTECTED]] Sent: Wednesday, October 31, 2001 5:33 PM To: [EMAIL PROTECTED] Cc: [EMAIL PROTECTED] Subject: Re: pls help !! On Wed, 2001-10-31 at 08:52, kmlau wrote: hi all, Let me to introduce somethings first, we use mysql for a logging system and take about max 150 000 records hourly. And we need to take a period of data for analyzing. I haven't followed the thread but do you use INSERT DELAYED already? These are nonblobking INSERT commands which give you freedon to run SELECT's. Well, how many records are in the table? How many would be returned by the query you present? The previous table is my trail one ! . Actually, my db (tlcounter200109) contains 56463703 records And for that sql statement : select * from tlcounter200109 where timerecord = 0109051200. The returned records have 86564 rows and execution time is 6 min 1.15 sec ( Expected time is within 1 min) Is the SQL you show the FULL sql? Yes , full sql is that select * from tlcounter200109 where timerecord = 0109051200 What is the output of the EXPLAIN SELECT explain select * from tlcounter200109 where timerecord = 0109051200; +-- +---+-+--+---+-+ --+---+ | table | type | possible_keys |key | key_len | ref| rows | Extra| +---+-- +--+-+---+-+--+- --+ | tlcounter200109 | ALL | timerecordindex | NULL | NULL | NULL | 56463703 |where used | +---+---+-+ -+-- -+-+--+ --+ Something is really wrong. Can you rebuild your indexes with command REPAIR TABLE tlcounter200109 ? What is your MySQL version? It should use index. -- For technical support contracts, goto https://order.mysql.com/ __ ___ ___ __ / |/ /_ __/ __/ __ \/ /Mr. Tonu Samuel [EMAIL PROTECTED] / /|_/ / // /\ \/ /_/ / /__ MySQL AB, Security Administrator /_/ /_/\_, /___/\___\_\___/ Räpina, Estonia ___/ www.mysql.com - Before posting, please check: http://www.mysql.com/manual.php (the manual) http://lists.mysql.com/ (the list archive) To request this thread, e-mail [EMAIL PROTECTED] To unsubscribe, e-mail [EMAIL PROTECTED] Trouble unsubscribing? Try: http://lists.mysql.com/php/unsubscribe.php - Before posting, please check: http://www.mysql.com/manual.php (the manual) http://lists.mysql.com/ (the list archive
pls help !!
hi all, Let me to introduce somethings first, we use mysql for a logging system and take about max 150 000 records hourly. And we need to take a period of data for analyzing. Well, how many records are in the table? How many would be returned by the query you present? The previous table is my trail one ! . Actually, my db (tlcounter200109) contains 56463703 records And for that sql statement : select * from tlcounter200109 where timerecord = 0109051200. The returned records have 86564 rows and execution time is 6 min 1.15 sec ( Expected time is within 1 min) Is the SQL you show the FULL sql? Yes , full sql is that select * from tlcounter200109 where timerecord = 0109051200 What is the output of the EXPLAIN SELECT explain select * from tlcounter200109 where timerecord = 0109051200; +-- +---+-+--+---+-+ --+---+ | table | type | possible_keys |key | key_len | ref | rows | Extra | +---+-- +--+-+---+-+--+- --+ | tlcounter200109 | ALL | timerecordindex | NULL | NULL | NULL | 56463703 | where used | +---+---+-+ -+-- -+-+--+ --+ * remark : quate from http://www.mysql.com/doc/E/X/EXPLAIN.html, key The key column indicates the key that MySQL actually decided to use. The key is NULL if no index was chosen. If MySQL chooses the wrong index, you can probably force MySQL to use another index by using myisamchk --analyze, See section 4.4.6.1 myisamchk Invocation Syntax, or by using USE INDEX/IGNORE INDEX. See section 6.4.1.1 JOIN Syntax. after i used the comand myisamchk -a , but it seems no any change ! What about SHOW INDEX FROM TABLE gw. mysql show index from tlcounter200109; +-+--+-+ --+++--+-+-- ++ | Table | Non_unique | Key_name | Seq_in_index | Column_name | Collation | Cardinality | Sub_part | Packed | Comment | +-+--+-+ --+++--+-+-- ++ | tlcounter200109 | 1 | esnindex | 1 | esn | A | 131924 | NULL | NULL | | | tlcounter200109 | 1 | esnindex | 2 | timerecord | A | 56463703 | NULL | NULL | | | tlcounter200109 | 1 | timerecordindex | 1 | timerecord | A | 618 | NULL | NULL | | +-+--+-+ --+-+---+---+-+- ++ 3 rows in set (0.00 sec) Would all experts give me any advices ? regards, kmlau - Before posting, please check: http://www.mysql.com/manual.php (the manual) http://lists.mysql.com/ (the list archive) To request this thread, e-mail [EMAIL PROTECTED] To unsubscribe, e-mail [EMAIL PROTECTED] Trouble unsubscribing? Try: http://lists.mysql.com/php/unsubscribe.php
RE: FW: pls help for index problem
hey, Well, how many records are in the table? How many would be returned by the query you present? My prefered (gw) table have 8313193 records for trail (on production should have 70,000,000 records approximately ) . And no. of records are returned have 71430 records by the query. Is the SQL you show the FULL sql? Yes, my full sql statement is that select * from gw where timerecord = '010902' . (Remarks, I want to find out data within a period for analyzing.) What is the output of the EXPLAIN SELECT Shown as below : table type possible_keys key key_len ref rows Extra gw ALL timerecord 8313193 where used What about SHOW INDEX FROM TABLE gw. mysql SHOW INDEX FROM gw; +---+--++---+--- ---+-+---+-+--+- --+ | Table | Non_unique | Key_name | Seq_in_index | Column_name | Collation | Cardinality | Sub_part | Packed | Comment | +---+--++---+--- ---+-+---+-+--+- --+ | gw| 1 | timerecord |1 | timerecord | A | 119 | NULL | NULL | | | gw| 1 | esnindex|1 | esn | A | 113879 | NULL | NULL | | | gw| 1 | esnindex|2 | timerecord | A | 8313193 | NULL | NULL | | +---+--+---++--- ---+-+---+-+--+- --+ 3 rows in set (0.00 sec) -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Bill Adams Sent: Thursday, October 25, 2001 6:09 AM To: [EMAIL PROTECTED] Cc: [EMAIL PROTECTED] Subject: Re: FW: pls help for index problem Well, how many records are in the table? How many would be returned by the query you present? Is the SQL you show the FULL sql? What is the output of the EXPLAIN SELECT What about SHOW INDEX FROM TABLE gw. b. kmlau wrote: -Original Message- From: kmlau [mailto:[EMAIL PROTECTED]] Sent: Wednesday, October 24, 2001 9:42 AM To: 'Bill Adams' Subject: RE: pls help for index problem Thanks yr promptly reply !! It seems no any change(improvement) by running explain again after erase quotes. I also ran the command 'myisamchk -a gw.MYI' before sending this consulting mail !! Would U give me more advice ? regards, kmlau -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Bill Adams Sent: Tuesday, October 23, 2001 11:11 PM To: [EMAIL PROTECTED] Cc: [EMAIL PROTECTED] Subject: Re: pls help for index problem kmlau wrote: I encountered a problem about indexing. I want to add index on timerecord field in table gw (shown as below) to speed up query relating with time. However, I use explain command (explain select * from gw where timerecord = '010902') to analyze the performace. As a result, it seems the query do not use this index. Would U tell me why and how to correct this !! U do not need to specify the timestamp as a string, e.g. remove the quotes: timerecord=10902. But more importantly run 'myisamchk -a' on the index (.MYI) file. Doing both of these will help. b. - Before posting, please check: http://www.mysql.com/manual.php (the manual) http://lists.mysql.com/ (the list archive) To request this thread, e-mail [EMAIL PROTECTED] To unsubscribe, e-mail [EMAIL PROTECTED] Trouble unsubscribing? Try: http://lists.mysql.com/php/unsubscribe.php - Before posting, please check: http://www.mysql.com/manual.php (the manual) http://lists.mysql.com/ (the list archive) To request this thread, e-mail [EMAIL PROTECTED] To unsubscribe, e-mail [EMAIL PROTECTED] Trouble unsubscribing? Try: http://lists.mysql.com/php/unsubscribe.php -- Bill Adams TriQuint Semiconductor - Before posting, please check: http://www.mysql.com/manual.php (the manual) http://lists.mysql.com/ (the list archive) To request this thread, e-mail [EMAIL PROTECTED] To unsubscribe, e-mail [EMAIL PROTECTED] Trouble unsubscribing? Try: http://lists.mysql.com/php/unsubscribe.php
Re: FW: pls help for index problem
Well, how many records are in the table? How many would be returned by the query you present? Is the SQL you show the FULL sql? What is the output of the EXPLAIN SELECT What about SHOW INDEX FROM TABLE gw. b. kmlau wrote: -Original Message- From: kmlau [mailto:[EMAIL PROTECTED]] Sent: Wednesday, October 24, 2001 9:42 AM To: 'Bill Adams' Subject: RE: pls help for index problem Thanks yr promptly reply !! It seems no any change(improvement) by running explain again after erase quotes. I also ran the command 'myisamchk -a gw.MYI' before sending this consulting mail !! Would U give me more advice ? regards, kmlau -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Bill Adams Sent: Tuesday, October 23, 2001 11:11 PM To: [EMAIL PROTECTED] Cc: [EMAIL PROTECTED] Subject: Re: pls help for index problem kmlau wrote: I encountered a problem about indexing. I want to add index on timerecord field in table gw (shown as below) to speed up query relating with time. However, I use explain command (explain select * from gw where timerecord = '010902') to analyze the performace. As a result, it seems the query do not use this index. Would U tell me why and how to correct this !! U do not need to specify the timestamp as a string, e.g. remove the quotes: timerecord=10902. But more importantly run 'myisamchk -a' on the index (.MYI) file. Doing both of these will help. b. - Before posting, please check: http://www.mysql.com/manual.php (the manual) http://lists.mysql.com/ (the list archive) To request this thread, e-mail [EMAIL PROTECTED] To unsubscribe, e-mail [EMAIL PROTECTED] Trouble unsubscribing? Try: http://lists.mysql.com/php/unsubscribe.php - Before posting, please check: http://www.mysql.com/manual.php (the manual) http://lists.mysql.com/ (the list archive) To request this thread, e-mail [EMAIL PROTECTED] To unsubscribe, e-mail [EMAIL PROTECTED] Trouble unsubscribing? Try: http://lists.mysql.com/php/unsubscribe.php -- Bill Adams TriQuint Semiconductor - Before posting, please check: http://www.mysql.com/manual.php (the manual) http://lists.mysql.com/ (the list archive) To request this thread, e-mail [EMAIL PROTECTED] To unsubscribe, e-mail [EMAIL PROTECTED] Trouble unsubscribing? Try: http://lists.mysql.com/php/unsubscribe.php
pls help for index problem
hi, I encountered a problem about indexing. I want to add index on timerecord field in table gw (shown as below) to speed up query relating with time. However, I use explain command (explain select * from gw where timerecord = '010902') to analyze the performace. As a result, it seems the query do not use this index. Would U tell me why and how to correct this !! CREATE TABLE gw( sitename char(12), ip char(15), mac char(17), esn char(12), flag char(2), timerecord timestamp(10), KEY timerecord (timerecord) ); explain select * from gw where timerecord = '010902' table type possible_keyskey key_len ref rows Extra gw ALL timerecord 8313193 where used *remark: The total records in the table gw are 8313193 ! regards, kmlau (I have already read the official document from mysql about index.) - Before posting, please check: http://www.mysql.com/manual.php (the manual) http://lists.mysql.com/ (the list archive) To request this thread, e-mail [EMAIL PROTECTED] To unsubscribe, e-mail [EMAIL PROTECTED] Trouble unsubscribing? Try: http://lists.mysql.com/php/unsubscribe.php
Re: pls help for index problem
kmlau wrote: I encountered a problem about indexing. I want to add index on timerecord field in table gw (shown as below) to speed up query relating with time. However, I use explain command (explain select * from gw where timerecord = '010902') to analyze the performace. As a result, it seems the query do not use this index. Would U tell me why and how to correct this !! U do not need to specify the timestamp as a string, e.g. remove the quotes: timerecord=10902. But more importantly run 'myisamchk -a' on the index (.MYI) file. Doing both of these will help. b. - Before posting, please check: http://www.mysql.com/manual.php (the manual) http://lists.mysql.com/ (the list archive) To request this thread, e-mail [EMAIL PROTECTED] To unsubscribe, e-mail [EMAIL PROTECTED] Trouble unsubscribing? Try: http://lists.mysql.com/php/unsubscribe.php
FW: pls help for index problem
-Original Message- From: kmlau [mailto:[EMAIL PROTECTED]] Sent: Wednesday, October 24, 2001 9:42 AM To: 'Bill Adams' Subject: RE: pls help for index problem Thanks yr promptly reply !! It seems no any change(improvement) by running explain again after erase quotes. I also ran the command 'myisamchk -a gw.MYI' before sending this consulting mail !! Would U give me more advice ? regards, kmlau -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Bill Adams Sent: Tuesday, October 23, 2001 11:11 PM To: [EMAIL PROTECTED] Cc: [EMAIL PROTECTED] Subject: Re: pls help for index problem kmlau wrote: I encountered a problem about indexing. I want to add index on timerecord field in table gw (shown as below) to speed up query relating with time. However, I use explain command (explain select * from gw where timerecord = '010902') to analyze the performace. As a result, it seems the query do not use this index. Would U tell me why and how to correct this !! U do not need to specify the timestamp as a string, e.g. remove the quotes: timerecord=10902. But more importantly run 'myisamchk -a' on the index (.MYI) file. Doing both of these will help. b. - Before posting, please check: http://www.mysql.com/manual.php (the manual) http://lists.mysql.com/ (the list archive) To request this thread, e-mail [EMAIL PROTECTED] To unsubscribe, e-mail [EMAIL PROTECTED] Trouble unsubscribing? Try: http://lists.mysql.com/php/unsubscribe.php - Before posting, please check: http://www.mysql.com/manual.php (the manual) http://lists.mysql.com/ (the list archive) To request this thread, e-mail [EMAIL PROTECTED] To unsubscribe, e-mail [EMAIL PROTECTED] Trouble unsubscribing? Try: http://lists.mysql.com/php/unsubscribe.php
Re: mysql_connect () and mysql_pconnect are not recognized ! Pls help.
It sounds like the PHP module was compiled without MySQL support.
root wrote:
Hi,
I'm running mysql MAX 3.23.41 on LinuxPPC, everything was installed from
an RPM.
My problem is whenever I try to call mysql_connect (), from a php3
script, I got the error function not found or misconfigured
The script is a simple form, that passes the data to be added to an
empty database, with an empty table, both the MySQL server and Apache
reside on the same machine, and because it's just a test, I'm entering
as root.
I am developing a more complex script , but I need to solve the
connection problem first
BTW ifyou define a var $link = mysql_connect ( localhost ) or ; ,
which is the correct syntax ? localhost or 'localhost' ?
Why is the command failing ??? From the console it works
BTW The server is on a static IP without a DNS, is it correct to set
mysql_connect (xxx.xxx.xxx.xxx) or ('xxx.xxx.xxx.xxx' when you are
running as localhost
Thank you
Regards,
Rick
-
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mysql_connect () and mysql_pconnect are not recognized ! Pls help.
Hi,
I'm running mysql MAX 3.23.41 on LinuxPPC, everything was installed from
an RPM.
My problem is whenever I try to call mysql_connect (), from a php3
script, I got the error function not found or misconfigured
The script is a simple form, that passes the data to be added to an
empty database, with an empty table, both the MySQL server and Apache
reside on the same machine, and because it's just a test, I'm entering
as root.
I am developing a more complex script , but I need to solve the
connection problem first
BTW ifyou define a var $link = mysql_connect ( localhost ) or ; ,
which is the correct syntax ? localhost or 'localhost' ?
Why is the command failing ??? From the console it works
BTW The server is on a static IP without a DNS, is it correct to set
mysql_connect (xxx.xxx.xxx.xxx) or ('xxx.xxx.xxx.xxx' when you are
running as localhost
Thank you
Regards,
Rick
-
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http://www.mysql.com/manual.php (the manual)
http://lists.mysql.com/ (the list archive)
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invalid authorization. pls help!
Hi,
i tried searching through the net for help, but could not find an answer.
Could anyone out there please help?
i'm running the mysql server on a redhat linux 7.0, kernel
2.2.16-22enterprise on a 2-processor i686.
I've been trying to connect to a database but i keep getting the access
denied error. I've logged in sucessfully using
the exact userid and password at the mysql console, so my grant tables are
definitly set correctly.
this is my code:
import java.sql.*;
import java.util.*;
public class Connected {
public static void main (String[] args) throws Exception{
Connection con = null;
try{
String url = jdbc:mysql://localhost:3306/mydatabase;
Statement stmt;
ResultSet rs;
Class.forName(org.gjt.mm.mysql.Driver).newInstance();
System.out.println(Class.forName);
con = DriverManager.getConnection(url,root,mypasswd);
stmt = con.createStatement();
}
catch(SQLException e) {
System.out.println(Unable to load driver.);
e.printStackTrace();
}
finally{
if (con != null){
try{con.close();}
catch (Exception e){}
}
}
}
}
my dir structure in linux is as such:
mysql dir -- /usr/local/mysql
mmmysql dir -- /usr/local/mysql/mmmysql
source code resides in -- /usr/local/mysql
source code able to be complied, but when run, gives the error:
Unable to load driver.
java.sql.SQLException: Invalid authorization specification:
Access denied for user:'[EMAIL PROTECTED]'( Using password: YES)
at org.gjt.mm.mysql.MysqlIO.init(MysqlIO.java:330)
at org.gjt.mm.mysql.Connection.connectionInit(Connection.java:261)
at org.gjt.mm.mysql.jdbc2.Connection.connectionInit(Connection.java:89)
at org.gjt.mm.mysql.Driver.connect(Driver.java:167)
at java.sql.DriverManager.getConnection(DriverManager.java:517)
at java.sql.DriverManager.getConnection(DriverManager.java:177)
at Connected.main(Connected.java:16)
thks
shane
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