查看MYSQL数据库中所有用户
mysql> SELECT DISTINCT CONCAT(\'User: \'\'\',user,\'\'\'@\'\'\',host,\'\'\';\') AS query FROM mysql.user;
查看数据库中具体某个用户的权限
mysql> show grants for \'cactiuser\'@\'%\';
mysql> select * from mysql.user where user=\'cactiuser\' \G
查看user表结构 需要具体的项可结合表结构来查询
mysql> desc mysql.user;