DROP DATABASE

Description

Drop a database and delete the directory associated with the database from the file system. An exception will be thrown if the database does not exist in the system.

Syntax

DROP { DATABASE | SCHEMA } [ IF EXISTS ] dbname [ RESTRICT | CASCADE ]

Parameters

• DATABASE | SCHEMA

  DATABASE and SCHEMA mean the same thing, either of them can be used.

• IF EXISTS

  If specified, no exception is thrown when the database does not exist.

• RESTRICT

  If specified, will restrict dropping a non-empty database and is enabled by default.

• CASCADE

  If specified, will drop all the associated tables and functions.

Examples

-- Create `inventory_db` Database
CREATE DATABASE inventory_db COMMENT 'This database is used to maintain Inventory';
-- Drop the database and it's tables
DROP DATABASE inventory_db CASCADE;
-- Drop the database using IF EXISTS
DROP DATABASE IF EXISTS inventory_db CASCADE;

Related Statements

• CREATE DATABASE
• DESCRIBE DATABASE
• SHOW DATABASES