MySQL 权限与用户表

1.授权时创建用户

grant all privileges on *.* to zhengwenqiang@localhost identified by 'zhengwenqiang';

2.收回insert权限

revoke insert on *.* from zhengwenqiang@lolcalhost;

3.remainder privileges

show grants for zhengwenqiang@localhost G;

4. Grant Rule : 授权最小的、满足用户需求的权限。

root@localhost 04:23:44 ->select * from mysql.user where User='zhengwenqiang' G;
*************************** 1. row ***************************
                  Host: localhost
                  User: zhengwenqiang
              Password: *BCD85D1E5C75845943DFDCE3DEB7EB9EE6C37ED0
           Select_priv: Y
           Insert_priv: N
           Update_priv: Y
           Delete_priv: Y
           Create_priv: Y
             Drop_priv: Y
           Reload_priv: Y
         Shutdown_priv: Y
          Process_priv: Y
             File_priv: Y
            Grant_priv: N
       References_priv: Y
            Index_priv: Y
            Alter_priv: Y
          Show_db_priv: Y
            Super_priv: Y
 Create_tmp_table_priv: Y
      Lock_tables_priv: Y
          Execute_priv: Y
       Repl_slave_priv: Y
      Repl_client_priv: Y
      Create_view_priv: Y
        Show_view_priv: Y
   Create_routine_priv: Y
    Alter_routine_priv: Y
      Create_user_priv: Y
            Event_priv: Y
          Trigger_priv: Y
Create_tablespace_priv: Y
              ssl_type: 
            ssl_cipher: 
           x509_issuer: 
          x509_subject: 
         max_questions: 0
           max_updates: 0
       max_connections: 0
  max_user_connections: 0
                plugin: 
 authentication_string: NULL
1 row in set (0.00 sec)

ERROR: 
No query specified

权限管理使用唯一的入口、收回alter权限。