DROP DATABASE LINK

Description

Deletes database link objects.

Syntax

DROP [ PUBLIC ] DATABASE LINK [ IF EXISTS ] dblink_name;

Parameters

• dblink_name

  Name of a connection object.

• IF EXISTS

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

• PUBLIC

  Specifies the connection type. If PUBLIC is not specified, the database link is private by default.

Examples

-- Create a user with the system administrator permission.
gaussdb=#  CREATE USER user1 WITH SYSADMIN PASSWORD '********';
gaussdb=#  SET ROLE user1 PASSWORD '********';

-- Create a private database link.
gaussdb=#  CREATE DATABASE LINK private_dblink CONNECT TO 'user1' IDENTIFIED BY '********' USING (host '192.168.11.11',port '54399',dbname 'db01');

-- Delete the private database link.
gaussdb=#  DROP DATABASE LINK private_dblink;

-- Create a public database link.
gaussdb=#  CREATE PUBLIC DATABASE LINK public_dblink CONNECT TO 'user1' IDENTIFIED BY '********' USING (host '192.168.11.11',port '54399',dbname 'db01');

-- Delete the public database link.
gaussdb=#  DROP PUBLIC DATABASE LINK public_dblink;

-- Delete the created user.
gaussdb=#  RESET ROLE;
gaussdb=#  DROP USER user1;

Helpful Links

ALTER DATABASE LINK and CREATE DATABASE LINK