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I have 2 tables:
User (id, user, pass, ...)
Post (user_id, post, ...)
I would like to create a trigger which delete post of a user, before deleting user… Can you help me?
if the tables is
innodbengineyou can use
http://dev.mysql.com/doc/refman/5.1/en/innodb-foreign-key-constraints.html
look an example here :
MySQL foreign key constraints, cascade delete