DROP SEQUENCE

The “ statement performs a schema change. For more information about how online schema changes work in CockroachDB, see .

Parameters

Parameter	Description
`IF EXISTS`	Drop the sequence only if it exists; if it does not exist, do not return an error.
`sequence_name_list`	A comma-separated list of sequence names. Find the sequence name with `SHOW CREATE` on the table that uses the sequence.
`RESTRICT`	(Default) Do not drop the sequence if any objects (such as and tables) use it.
`CASCADE`	Not implemented. You can drop a sequence only if nothing depends on it.

Examples

Remove a sequence (no dependencies)

In this example, other objects do not depend on the sequence being dropped.

> CREATE SEQUENCE even_numbers INCREMENT 2 START 2;

> SHOW SEQUENCES;

  sequence_schema | sequence_name
------------------+----------------
  public          | even_numbers
(1 row)

> DROP SEQUENCE even_numbers;

> SHOW SEQUENCES;

  sequence_schema | sequence_name
------------------+----------------
(0 rows)

Required privileges