Re: Scaling Mysql

2009-08-21 Thread Krishna Chandra Prajapati
Hi wharms, Yor are right. It's some kind of queue mechanism. Right now i am working i telco company (We used to send sms) Users will be inserting records into send_sms @ 30,000msg/min Then those record will be updated and moved to alt_send_sms and deleted from send_sms. After that 30,000msg/min

Select clause using from and to (like rownum in Oracle)

2009-08-21 Thread Anoop kumar V
Never mind. I got it to work.. I had to really trim down the entire statement: set @sql = concat( "select iams_id as iamsId ,division_name as divisionName ,region_name as regionName ,isactive as isActive from user_approvers li

Re: Select clause using from and to (like rownum in Oracle)

2009-08-21 Thread Peter Brawley
Is there anyway the SELECT query can be forced to use the "from" and "to" rownum parameters? 1st LIMIT arg = OracleFromArg 2nd LIMIT arg = OracleToArg - OracleFromArg + 1 so 'from 11 to 20' becomes LIMIT 11,10. PB - Anoop kumar V wrote: Hi All, I am facing a problem in porting an appli

Select clause using from and to (like rownum in Oracle)

2009-08-21 Thread Anoop kumar V
Hi All, I am facing a problem in porting an application written for oracle to run on mysql. The application uses a sqlmap (ibatis) at the heart of which is basically a file that defines all sql's used in the application. It is very well organized this way. The application uses Oracle as the datab

RE: Scaling Mysql

2009-08-21 Thread mos
At 01:44 PM 8/21/2009, you wrote: RENAME statement is atomic, and you can specify multiple tables to rename at once. Instead of two statements, do this: rename table send_sms to send_sms_full, send_sms_empty to send_sms; There will be no "gap" in-between. Ah yes, that's what I forgot. It's a

RE: Scaling Mysql

2009-08-21 Thread Jerry Schwartz
>-Original Message- >From: Gavin Towey [mailto:gto...@ffn.com] >Sent: Friday, August 21, 2009 2:45 PM >To: Jerry Schwartz; 'mos'; 'MySQL' >Subject: RE: Scaling Mysql > >RENAME statement is atomic, and you can specify multiple tables to rename at >once. > >Instead of two statements, do thi

RE: Scaling Mysql

2009-08-21 Thread Gavin Towey
RENAME statement is atomic, and you can specify multiple tables to rename at once. Instead of two statements, do this: rename table send_sms to send_sms_full, send_sms_empty to send_sms; There will be no "gap" in-between. -Original Message- From: Jerry Schwartz [mailto:jschwa...@the-inf

Re: alternate in mysql

2009-08-21 Thread Johnny Withers
Yeah.. I think i misunderstood what he is trying to do here.. I thought he only wanted rows where t BEGINS with /sr/db, but I think he wants rows that have a line in column t that begins with that -- then of those rows, he only wants t to contain the lines within t that begin with /sr/db as well.

RE: Scaling Mysql

2009-08-21 Thread Jerry Schwartz
> >Krishna, > Rather than copying rows from one table to another, and deleting the >previous rows, why not just do: > >1) create table send_sms_empty like send_sms; > >2) rename table send_sms to send_sms_full;rename send_sms_empty to send_sms; > >3) insert into alt_send_sms select * from send_

RE: alternate in mysql

2009-08-21 Thread Jerry Schwartz
>-Original Message- >From: Ananda Kumar [mailto:anan...@gmail.com] >Sent: Friday, August 21, 2009 2:55 AM >To: Johnny Withers >Cc: MySQL >Subject: Re: alternate in mysql > >Hi Johnny, >Thanks for the reply, but the below sql does not seems to work > > SELECT * FROM tmp WHERE t REGEXP '^/sr/

Best practice to disable log bin for mysql_upgrade

2009-08-21 Thread Russell E Glaue
I am upgrading minor MySQL versions, 5.0.67 to 5.0.84 I have a master-master replication setup, and want to upgrade both installations. The ideal procedure for upgrading mysql using the mysql_upgrade command is to have binary logging turned off during the execution of mysql_upgrade. My situation

Re: Scaling Mysql

2009-08-21 Thread mos
At 01:30 AM 8/21/2009, Krishna Chandra Prajapati wrote: Hi list, I have two tables send_sms and alt_send_sms. Users are inserting records into send_sms @ 500/sec ie 3/min. After applying some updates to send_sms data are transferred to alt_send_sms and deleted from send sms. The same thing i

Re: Scaling Mysql

2009-08-21 Thread walter harms
Krishna Chandra Prajapati schrieb: > Hi list, > > I have two tables send_sms and alt_send_sms. Users are inserting records > into send_sms @ 500/sec ie 3/min. After applying some updates to > send_sms data are transferred to alt_send_sms and deleted from send sms. The > same thing is happeni