mysql忘记root密码解决方法(windows)

1.关闭mysql 服务

点击(此处)折叠或打开

 net stop mysql57

2.执行mysqld

- 打开cmd窗口，切换至mysql安装目录

点击(此处)折叠或打开

 cd C:\Program Files\MySQL\MySQL Server 5.7\bin
 C:\Program Files\MySQL\MySQL Server 5.7\bin>mysqld --defaults-file="C:\ProgramData\MySQL\MySQL Server 5.7\my.ini" --skip-grant-tables

3.新开启cmd,登录root

-不用输入password，直接回车

C:\Program Files\MySQL\MySQL Server 5.7\bin>mysql -uroot -p
Enter password:

4.修改root密码

点击(此处)折叠或打开

 mysql> use mysql;
 Database changed
 mysql> update mysql.user set authentication_string=password('root') where user='root' ;
 Query OK, 1 row affected, 1 warning (0.01 sec)
 Rows matched: 1 Changed: 1 Warnings: 1
 mysql> flush privileges;
 Query OK, 0 rows affected (0.02 sec)

5.使用新密码登录root

点击(此处)折叠或打开

 C:\Program Files\MySQL\MySQL Server 5.7\bin>mysql -uroot -p
 Enter password: ****
 Welcome to the MySQL monitor. Commands end with ; or \g.
 Your MySQL connection id is 6
 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> show database;
 ERROR 1064 (42000): You have an error in your SQL syntax; check the manual that
 corresponds to your MySQL server version for the right syntax to use near 'datab
 ase' at line 1
 mysql> show databases;
 +--------------------+
 | Database |
 +--------------------+
 | information_schema |
 | fortress |
 | mysql |
 | performance_schema |
 | python |
 | stuman |
 | stuman2 |
 | sys |
 | www |
 +--------------------+
 9 rows in set (0.00 sec)

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