DROP TRIGGER
DROP TRIGGER
Name
DROP TRIGGER
-- remove a trigger
Synopsis
DROP TRIGGER name ON table [ CASCADE | RESTRICT ]
Inputs
- name
The name of an existing trigger.
- table
The name (optionally schema-qualified) of a table.
- CASCADE
Automatically drop objects that depend on the trigger.
- RESTRICT
Refuse to drop the trigger if there are any dependent objects.
This is the default.
Outputs
- DROP TRIGGER
The message returned if the trigger is successfully dropped.
- ERROR: DropTrigger: there is no trigger name on relation "table"
This message occurs if the trigger specified does not exist.
Description
DROP TRIGGER will remove an existing
trigger definition. To execute this command the current
user must be the owner of the table for which the trigger is defined.
Examples
Destroy the if_dist_exists trigger
on table films:
DROP TRIGGER if_dist_exists ON films;
Compatibility
- SQL92
There is no DROP TRIGGER statement in
SQL92.
- SQL99
The DROP TRIGGER statement in
PostgreSQL is incompatible with
SQL99. In SQL99, trigger names are not local to tables, so the
command is simply DROP TRIGGER
name.
