Hi, > I have a table with a PRIMARY KEY on id field, whos > evalue is populated usin auto_increment. > > > CREATE TABLE `key` ( > `id` int(10) unsigned NOT NULL AUTO_INCREMENT, > `sid` smallint(4) unsigned NOT NULL DEFAULT '0', > `email` varchar(128) NOT NULL DEFAULT '', > PRIMARY KEY (`id`), > UNIQUE KEY `email` (`email`) > ) ENGINE=InnoDB; > > Question: > > 1) > When I INSERT a row is there any way to be able in the > same INSERT statement (without doing an UPDATE after > the insert) to populate the field `sid`, which is base > on the value that the field `id` gets (e.g. sid= MOD > (id, 20))
Sounds like an excellent case for a TRIGGER. Martijn Tonies Database Workbench - tool for InterBase, Firebird, MySQL, NexusDB, Oracle & MS SQL Server Upscene Productions http://www.upscene.com My thoughts: http://blog.upscene.com/martijn/ Database development questions? Check the forum! http://www.databasedevelopmentforum.com -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe: http://lists.mysql.com/[EMAIL PROTECTED]
