DROP TRIGGER
Syntax
DROP TRIGGER [IF EXISTS] [schema_name.]trigger_name
Contents
Description
This statement drops a trigger. The schema (database) name is optional. If the schema is omitted, the trigger is dropped from the default schema. Its use requires the TRIGGER
privilege for the table associated with the trigger.
Use IF EXISTS
to prevent an error from occurring for a trigger that does not exist. A NOTE
is generated for a non-existent trigger when using IF EXISTS
. See SHOW WARNINGS.
Note: Triggers for a table are also dropped if you drop the table.
Examples
DROP TRIGGER test.example_trigger;
Using the IF EXISTS clause:
DROP TRIGGER IF EXISTS test.example_trigger; Query OK, 0 rows affected, 1 warning (0.01 sec) SHOW WARNINGS; +-------+------+------------------------+ | Level | Code | Message | +-------+------+------------------------+ | Note | 1360 | Trigger does not exist | +-------+------+------------------------+
原文地址:https://mariadb.com/kb/en/drop-trigger/
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