Linux中Mysql root用户看不到mysql库问题解决方式

Posted 2020-09-24 森林木马

第一种方式：

1.首先停止MySQL服务：service mysqld stop
2.加参数启动mysql：/usr/bin/mysqld_safe --skip-grant-tables & 
然后就可以无任何限制的访问mysql了
3.root用户登陆系统：mysql -u root -p mysql
4.切换数据库：use mysql
5.显示所有的表：show tables;
这里就可以访问表了
6.查看user表中root用户的localhost权限：select * from user where user=\'root\' and host=\'localhost\'
7.在显示的列表中显示：root用户的localhost的权限都是\'N\',表示root用户本地登陆不具有权限
8.修改root用户的localhost权限：
  update user set  
  `Select_priv` = \'Y\',
  `Insert_priv` = \'Y\',
  `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` = \'Y\',
  `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\'
  where user=\'root\' and host=\'localhost
  9.更新一下：flush privileges;
  10.然后重新启动下mysql，可以解决问题了

第一种不行 采用第二种：

删除data中Mysql文件：

 

删除 mysql之后执行： ./scripts/mysql_install_db --user=mysql --datadir=/usr/local/mysql/data/mysql

就应该好了