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忘记MySQL的root密码的解决方法

时间:2024-2-18 13:23     作者:韩俊     分类: Mysql


忘记MySQL的root密码的解决方法,下面是详细的操作步骤。

(1)修改配置文件 my.cnf,在配置文件  [mysqld] 下添加 skip-grant-tables,重启MySQL服务即可免密码登录

其中 --skip-grant-tables 选项的意思是启动 MySQL 服务的时候跳过权限表认证。 启动后,连接到 MySQL 的 root 将不需要口令(危险)。

[mysqld]

skip-grant-tables

(2)用空密码的 root 用户连接到 MySQL,并且更改 root 口令:

[root@iZ235wguph2Z www]# mysql -u root
Welcome to the MySQL monitor.  Commands end with ; or \g.
Your MySQL connection id is 295
Server version: 5.0.56-log Source distribution

Copyright (c) 2000, 2017, Oracle and/or its affiliates. All rights reserved.

Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.

Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.

mysql> update user set password=password('123456') where User='root';
ERROR 1046 (3D000): No database selected
mysql> use mysql;
Database changed
mysql> update user set password=password('123456') where User='root';
Query OK, 3 rows affected (0.00 sec)
Rows matched: 3  Changed: 3  Warnings: 0

mysql> flush privileges;
Query OK, 0 rows affected (0.00 sec)

mysql> exit

(3)到 my.cnf 中删除 skip-grant-tables 选项,然后重启MySQL服务
 
至此MySQL数据库root用户的密码修改完毕。

标签: mysql

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