DROP SCHEMA

Description

Deletes a schema from the current database.

Precautions

• Only the owner of a schema or a user granted the DROP permission for a schema has the permission to run the DROP SCHEMA command. If separation of duties is disabled, the system administrator has this permission by default.
• Users except the initial user and O&M administrator cannot drop the schema of the O&M administrator.
• You are not allowed to delete DBE_PLDEVELOPER when allow_system_table_mods is disabled.

Syntax

DROP SCHEMA [ IF EXISTS ] schema_name [, ...] [ CASCADE | RESTRICT ];

Parameters

• IF EXISTS

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

• schema_name

  Specifies the schema name.

  Value range: an existing schema name

• CASCADE | RESTRICT
  • CASCADE: automatically deletes all the objects contained in the schema.
  • RESTRICT: refuses to delete the schema if the schema contains objects. This is the default action.

Schemas beginning with pg_temp or pg_toast_temp are for internal use. Do not delete them. Otherwise, unexpected consequences may be incurred.

The schema currently being used cannot be deleted. To delete it, switch to another schema first.

Examples

See Examples in section "CREATE SCHEMA."

Helpful Links

ALTER SCHEMA and CREATE SCHEMA