centos7系统mysql5.7密码忘记了修改

目录

1.修改配置文件

2.重启服务

3.登陆mysql，密码为空，直接回车即可进入mysql

4.修改密码

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1.修改配置文件

找到对应的配置文件进行修改

[root@localhost ~]# vim /etc/my.cnf
#在[mysqld]中添加
skip-grant-tables

2.重启服务

[root@localhost ~]# systemctl restart mysqld

3.登陆mysql，密码为空，直接回车即可进入mysql

[root@localhost ~]# mysql -uroot -p
Enter password: 
Welcome to the MySQL monitor.  Commands end with ; or \g.
Your MySQL connection id is 2
Server version: 5.7.44 MySQL Community Server (GPL)

Copyright (c) 2000, 2023, Oracle and/or its affiliates.

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.

4.修改密码

mysql> use mysql;
Database changed
mysql> update user set authentication_string=password('你的密码') where user='root';
Query OK, 1 row affected, 1 warning (0.00 sec)
Rows matched: 2  Changed: 1  Warnings: 1
#刷新权限
mysql> flush privileges;
Query OK, 0 rows affected (0.00 sec)