MySQL in a Nutshell, 2nd Edition

Name

DROP TRIGGER

Synopsis

DROP TRIGGER [IF EXISTS] [database.]trigger

This statement deletes a trigger. The IF EXISTS keyword prevents error messages when the trigger doesn’t exist. Instead, a note will be generated, which can be displayed afterward by executing the SHOW WARNINGS statement. You may specify the database or schema with which the trigger is associated. If not given, the current default database is assumed. As of version 5.1.6 of MySQL, this statement requires the TRIGGER privilege for the table related to the trigger given. Previously, it required SUPER privilege. When upgrading from version 5.0.10 or earlier of MySQL, be sure to drop all triggers because there’s a problem with using or dropping triggers from earlier versions.