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.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.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.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.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.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 >>>>>> >>>>> >>>>> >>>> >>>> >>>> -- >>>> 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 >> > >
