Easier than that (though Sheeri's way would work): ALTER TABLE yourtablename DISABLE KEYS; SET FOREIGN_KEY_CHECKS=0; ... do your processing ... SET FOREIGN_KEY_CHECKS=1; ALTER TABLE yourtablename ENABLE KEYS;
http://dev.mysql.com/doc/refman/5.0/en/alter-table.html http://dev.mysql.com/doc/refman/5.0/en/set-option.html Shawn Green Database Administrator Unimin Corporation - Spruce Pine "sheeri kritzer" <[EMAIL PROTECTED]> wrote on 02/20/2006 12:28:54 PM: > Drop the keys and references, change it, and then re-create the keys > and references. > > http://dev.mysql.com/doc/refman/5.0/en/innodb-foreign-key-constraints.html > > (a SHOW CREATE TABLE will show you the constraints including foreign > keys -- copy those, so you can create them later. Then you can use > ALTER TABLE to drop the keys, change your columns, and then you can > use ALTER TABLE to add the keys back in, although it sounds like you > won't have a primary key in the new table). > > -Sheeri > > On 2/17/06, Tomáš Vichta <[EMAIL PROTECTED]> wrote: > > Hello, > > I need to turn off all constraints in a table (especially primary and > > foreign keys) - because for example I need to exchange primary key > > values of two rows in a table. And because of primary key constraints I > > can do it directly. I would to turn off the constraint, rename value of > > PK1 to PK2 - now I have the same 2 values PK2 and it's the problem, if > > the primary key constraint is enabled. > > > > Thanx very much for answer, TV. > > > > -- > > 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] >
