> I'm working in a project at the moment that is using MySQL, and people keep making assertions like this one: > > "*Really* big sites don't ever have referential integrity. Or if the few spots they do (like with financial transactions) it's implemented on the application level (via, say, optimistic locking), never the database level." > > A large DB working with no RI would give me nightmares. Is it really true that large sites turn RI off to improve performance? Am I just being naive in thinking that everyone runs their DBs with RI in production? >
If you don't value your data, then choose not to use RI. If you DO value your data, run with as much valid constraints as you can. After all, that's the whole idea behind constraints :-) Martijn Tonies Database Workbench - development tool for MySQL, and more! 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]
