Asif, ----- Original Message ----- From: "Asif Iqbal" <[EMAIL PROTECTED]> Newsgroups: mailing.database.mysql Sent: Sunday, August 24, 2003 8:44 AM Subject: split database
> I am running mysql 4.0.13 with innodb. I have data since 2000. I don't > necessarily need to work with any data older than one year. Therefore I would > like to split the database. Then I like to backup data older than one year and > keep anything newer than one year and put it back to the same tables. > > So basically > ________. DB_OLD (2000-2001) > | > DB (2000-2003) ---| > --------. DB (2002-2003) > > That way all my applications will still work with the database and no need to > change the table name or database name > > This is my game plan > > 1. Dump the database to database.sql > 2. Remove all the entries older than one year and save it as database_new.sql > 3. Drop the database > 4. Source database_new.sql > 5. Not sure what I need to do with the innodb data/log you do not need to do anything ibdata or ib_logfiles, because when you do the DROP DATABASE ..., InnoDB will free all the space in the ibdata files. Before you start this massive reorganization, I recommend (1) shutting down mysqld and making a BACKUP of (2) ibdata files and (3) ib_logfiles, as well as (4) all the .MYI, .MYD, and .frm files under the subdirectories of the datadir of the MySQL. Just in case something goes wrong with the steps 1 - 5 above. And, of course, you should regularly take backups of your valuable database anyway. > Please help/suggest > -- > Asif Iqbal > http://pgpkeys.mit.edu:11371/pks/lookup?op=get&search=0x8B686E08 > There's no place like 127.0.0.1 Best regards, Heikki Tuuri Innobase Oy http://www.innodb.com Transactions, foreign keys, and InnoDB Hot Backup: a non-free hot backup tool for MySQL Order MySQL technical support from https://order.mysql.com/ -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe: http://lists.mysql.com/[EMAIL PROTECTED]
