MySQL是一套資料庫軟件。
開帳號順便開權限:
GRANT ALL ON trac.* TO `trac`@`localhost` IDENTIFIED BY 'password_here';
移除權限(單一資料庫或是全部):
REVOKE ALL ON trac.* FROM 'trac'@'localhost'; REVOKE ALL FROM 'trac'@'localhost';