DROP SEQUENCE

Removes the specified named sequence number generator.

Syntax

DROP SEQUENCE [ IF EXISTS ] [[database.]schema.]sequence[,…]

Parameters

IF EXISTS

Specifies not to report an error if the sequences to drop do not exist. Use this clause in SQL scripts to avoid errors on dropping non-existent objects before attempting to create them.

[database.]schema

Specifies a schema, by default public. If schema is any schema other than public, you must supply the schema name. For example:

myschema.thisDbObject

If you specify a database, it must be the current database.
sequence

Name of the sequence to drop.

Privileges

One of the following:

  • Superuser
  • Sequence or schema owner

Restrictions

  • For sequences specified in a table's default expression, the default expression fails the next time you try to load data. Vertica does not check for these instances.
  • DROP SEQUENCE does not support the CASCADE keyword. Sequences used in a default expression of a column cannot be dropped until all references to the sequence are removed from the default expression.

Example

The following command drops the sequence named sequential.

=> DROP SEQUENCE sequential;

See Also