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doc-exports/docs/dws/dev/dws_06_0212.html
Lu, Huayi a24ca60074 DWS DEVELOPER 811 version 
Reviewed-by: Hasko, Vladimir <vladimir.hasko@t-systems.com>
Co-authored-by: Lu, Huayi <luhuayi@huawei.com>
Co-committed-by: Lu, Huayi <luhuayi@huawei.com>
2023-01-19 13:37:49 +00:00

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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

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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.

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DROP TRIGGER insert_trigger ON test_trigger_src_tbl;

Helpful Links

CREATE TRIGGER, ALTER TRIGGER, ALTER TABLE

Parent topic: DDL Syntax