MySQL是一套数据库软件。
开账号顺便开权限:
GRANT ALL ON trac.* TO `trac`@`localhost` IDENTIFIED BY 'password_here';
删除:
DROP USER 'trac'@'localhost';
移除权限(单一数据库或是全部):
REVOKE ALL ON trac.* FROM 'trac'@'localhost'; REVOKE ALL FROM 'trac'@'localhost';