mysql中root密码忘记了怎么操作

小编给大家分享一下mysql中root密码忘记了怎么办，相信大部分人都还不怎么了解，因此分享这篇文章给大家参考一下，希望大家阅读完这篇文章后大有收获，下面让我们一起去了解一下吧！

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>

以上是“mysql中root密码忘记了怎么办”这篇文章的所有内容，感谢各位的阅读！

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