DROP TABLE

Function

DROP TABLE deletes a table.

Precautions

• DROP TABLE forcibly deletes the specified table and the indexes depending on the table. After the table is deleted, the functions and stored procedures that need to use this table cannot be executed. Deleting a partitioned table also deletes all partitions in the table.
• The owner of a table, users granted with the DROP permission on the table, or users granted with the DROP ANY TABLE permission can delete the specified table. The system administrator has the permission to delete the table by default.

Syntax

DropTable ::= DROP TABLE [ IF EXISTS ]
    { [schema'.']table_name } [, ...] [ CASCADE | RESTRICT ] [ PURGE ];

Parameter Description

• IF EXISTS

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

• schema

  Specifies the schema name.

• table_name

  Specifies the name of the table to be deleted.

• CASCADE | RESTRICT

  • CASCADE: automatically deletes the objects (such as views) that depend on the table.
  • RESTRICT: refuses to delete the table if any objects depend on it. This is the default action.

Examples

See Example in CREATE TABLE.

Helpful Links

ALTER TABLE and CREATE TABLE