USE PlaceholderForDbName;

DROP PROCEDURE IF EXISTS add_user ;

CREATE PROCEDURE add_user()
BEGIN
DECLARE EXIT HANDLER FOR 1044 BEGIN END;
GRANT ALL PRIVILEGES ON PlaceholderForDbName.* to 'PlaceholderForDbUsername'@'PlaceholderForServer' IDENTIFIED BY 'PlaceholderForDbPassword';
FLUSH PRIVILEGES;
END
//

CALL add_user() //

DROP PROCEDURE IF EXISTS add_user //