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