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

1

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:

1

DROP TRIGGER insert_trigger ON test_trigger_src_tbl;

Helpful Links

CREATE TRIGGER, ALTER TRIGGER, ALTER TABLE