DROP SEQUENCE — Remove a sequence.
DROP SEQUENCE
DROP SEQUENCE <name> [, ...]
DROP SEQUENCE removes sequence number generators. To execute this command, you must be a superuser or the owner of the sequence.
name
The name (optionally schema-qualified) of a sequence.
Remove the sequence serial:
serial
DROP SEQUENCE serial;
ALTER SEQUENCE, CREATE SEQUENCE
DROP ROLE
Database Compatibility for Oracle Developers: SQL
DROP TABLE