April 2008
Intermediate to advanced
566 pages
21h 55m
English
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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.
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