DROP SEQUENCE

Purpose

Use the DROP SEQUENCE statement to remove a sequence from the database.

You can also use this statement to restart a sequence by dropping and then re-creating it. For example, if you have a sequence with a current value of 150 and you would like to restart the sequence with a value of 27, then you can drop the sequence and then re-create it with the same name and a START WITH value of 27.

See Also:

CREATE SEQUENCE and ALTER SEQUENCE for more information on creating and modifying a sequence

Prerequisites

The sequence must be in your own schema or you must have the DROP ANY SEQUENCE system privilege.

Syntax

drop_sequence::=

Description of the illustration drop_sequence.gif

Semantics

schema

Specify the schema containing the sequence. If you omit schema, then Oracle Database assumes the sequence is in your own schema.

sequence_name

Specify the name of the sequence to be dropped.

Examples

Dropping a Sequence: Example The following statement drops the sequence customers_seq owned by the user oe, which was created in "Creating a Sequence: Example". To issue this statement, you must either be connected as user oe or have the DROP ANY SEQUENCE system privilege:

DROP SEQUENCE oe.customers_seq;