MySQL查看所有用户及拥有权限

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> select * from mysql.user where user=‘用户’ \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;