DROP TRIGGER

Function

DROP TRIGGER deletes a trigger.

Precautions

Only the owner of a trigger or a system administrator has the DROP TRIGGER permission.

Syntax

DROP TRIGGER [ IF EXISTS ] trigger_name ON table_name [ CASCADE | RESTRICT ];

Parameter Description

• IF EXISTS

  Reports 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 name

• table_name

  Specifies the name of the table containing the trigger.

  Value range: name of the table containing the trigger

• CASCADE | RESTRICT

  • CASCADE: automatically deletes the objects that depend on the trigger.
  • RESTRICT: refuses to delete the trigger if any objects depend on it. This is the default action.

Examples

For details, see Examples in CREATE TRIGGER.