DROP TRIGGER¶
Function¶
DROP TRIGGER deletes a trigger.
Precautions¶
Only the owner of a trigger and system administrators can run the DROP TRIGGER statement.
Syntax¶
DROP TRIGGER [ IF EXISTS ] trigger_name ON table_name [ CASCADE | RESTRICT ];
Parameter Description¶
IF EXISTS
Sends a notice instead of an error if the specified trigger does not exist.
trigger_name
Specifies the name of the trigger to be deleted.
Value range: an existing trigger
table_name
Specifies the name of the table where the trigger to be deleted is located.
Value range: an existing table having a trigger
CASCADE | RESTRICT
CASCADE: Deletes objects that depend on the trigger.
RESTRICT: Refuses to delete the trigger if any objects depend on it. This is the default.
Examples¶
Delete the trigger insert_trigger:
DROP TRIGGER insert_trigger ON test_trigger_src_tbl;