解决Access denied for user ''@'localhost' to database 'mysql'问题

解决Access denied for user ‘’@’localhost’ to database ‘mysql’问题

。 https://blog.csdn.net/Aaronzzq/article/details/80418908

在修改mysql的root用户密码后，再登陆，提示如标题的错误，找了一番答案之后，终于解决，步骤如下：

1.停掉mysql: service mysqld stop

2.使用不验证的状态登陆mysql:

      mysqld\_safe --skip-grant-tables &   //后台运行
      启动mysql:   service mysqld start[http://ncre.neea.edu.cn/][http_ncre.neea.edu.cn]

3.进入mysql: mysql -u root

4.use mysql;

5.delete from user where user=’’; 删除空用户

6.flush previlige; 刷新权限

7.service mysqld restart

8.问题解决

insert into `user` (`Host`,`User`,`Password’,`ssl_cipher`,`x509_issuer`,`x509_subject`) VALUES (‘localhost2’,’root’,password(‘1234’),’ ‘,’ ‘,’ ‘);

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’;