这篇文章主要介绍了mysql忘记root密码怎么办，具有一定借鉴价值，感兴趣的朋友可以参考下，希望大家阅读完这篇文章之后大有收获，下面让小编带着大家一起了解一下。

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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