mysql中的root密码忘记的解决办法

最新推荐文章于 2021-08-10 19:46:38 发布

转载最新推荐文章于 2021-08-10 19:46:38 发布 · 102 阅读

本文详细介绍了如何使用mysqld --skip-grant-tables命令来绕过MySQL权限表的限制，并通过更新语句重置root用户的密码。包括在不同操作系统环境下执行命令的方法，以及验证密码修改成功的步骤。

让mysql不载入权限表，命令：mysqld --skip-grant-tables

命令：mysqld --skip-grant-tables（windows）
mysqld_safe --skip-grant-tables user=mysql或者/etc/init.d/mysql start --mysqld --skip-grant-tables （linux）

Windows平台例子:
C:\Users\duansf>mysqld --skip-grant-tables

打开另外一个命令窗口，进入mysql的交互界面
C:\Users\duansf>mysql -uroot -p
Enter password: ******
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 15
Server version: 5.5.13 MySQL Community Server (GPL)

Copyright (c) 2000, 2010, 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>

用update语句重置root密码。
mysql> show databases;
+--------------------+
| Database |
+--------------------+
| information_schema |
| mysql |
| performance_schema |
| test |
+--------------------+
4 rows in set (0.07 sec)

mysql> use mysql
Database changed

mysql> update user set Password=password('123456') where user='root';
Query OK, 1 row affected (0.00 sec)
Rows matched: 1 Changed: 1 Warnings: 0

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

mysql> flush privileges;
Query OK, 0 rows affected (0.24 sec)

重新登陆验证密码修改是否成功
C:\Users\duansf>mysql -u root -p123456
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 16
Server version: 5.5.13 MySQL Community Server (GPL)

Copyright (c) 2000, 2010, 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>

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