Help Center/ GaussDB/ Developer Guide(Centralized_8.x)/ SQL Reference/ SQL Syntax/ D/ DROP SEQUENCE
Updated on 2024-06-03 GMT+08:00
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DROP SEQUENCE

Description

Deletes a sequence from the current database.

Precautions

  • Only the owner of a sequence, the owner of the schema to which the sequence belongs, or a user granted the DROP permission on a sequence or a user granted the DROP ANY SEQUENCE permission can delete a sequence. When separation of duties is disabled, a system administrator has this permission by default.
  • If the LARGE identifier is used when a sequence is created, the LARGE identifier must be used when the sequence is dropped.

Syntax

DROP [ LARGE ] SEQUENCE [ IF EXISTS ] {[schema.]sequence_name} [ , ... ] [ CASCADE | RESTRICT ];

Parameters

  • IF EXISTS

    Reports a notice instead of an error if the specified sequence does not exist.

  • sequence_name

    Specifies the name of the sequence to be deleted.

  • CASCADE

    Cascadingly deletes the objects that depend on the sequence.

  • RESTRICT

    Refuses to delete the sequence if any objects depend on it. This is the default action.

Examples

-- Create an ascending sequence named serial, starting from 101.
gaussdb=# CREATE SEQUENCE serial START 101;

-- Delete a sequence.
gaussdb=# DROP SEQUENCE serial;

Helpful Links

ALTER SEQUENCE and DROP SEQUENCE

Parent topic: D