如果MySQL密码忘记了root密码导致无法登录,如下图所示,这个时候怎么办,只能重置root密码了。有一个弊端就是需要停MySQL服务,如果这是生产数据库操作起来就没那么方便了
工具/原料
- Windows 10 x64
- mysql-5.7.19-winx64
方法/步骤
-
如果不是以管理员身份运行cmd执行命令net stop mysql会报“发生系统错误5 拒绝访问”
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重新以管理员身份运行cmd,输入net stop mysql
停止MySQL服务
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打开一个cmd窗口输入mysqld --skip-grant-tables,注意这个cmd命令窗口不要关闭
-
重新打开一个cmd窗口,运行下面命令
C:UsersAdministrator>mysql
Welcome to the MySQL monitor. Commands end with ; or g.
Your MySQL connection id is 4
Server version: 5.7.19 MySQL Community Server (GPL)
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> use mysql
Database changed
mysql> update user set authentication_string=password('123456') where user='root';
Query OK, 0 rows affected, 1 warning (0.06 sec)
Rows matched: 1 Changed: 0 Warnings: 1
mysql>
将mysql的root密码重置为123456
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继续以管理员身份运行cmd,输入net start mysql
启动MySQL服务
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以重置后的root密码登录测试,如下图
mysql -uroot -p123456

