mysql 密码修改,重置
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2022-10-04 15:56:33
一、如果知道原密码的情况下更改密码方法1:进入mysql里面更改密码进入mysql后,切换到mysql数据库里操作user表,比如我们将密码改为"admin"SQL语句: update user set password=password('admin') where user = 'root';执行后报错 ERROR 1054(42S22) Unknown column 'password' in ‘field list’错误的原因是5.7版本下的mysql数据库下已经没有pass....
一、如果知道原密码的情况下更改密码
方法1:进入mysql里面更改密码
进入mysql后,切换到mysql数据库里操作user表,比如我们将密码改为"admin"
SQL语句: update user set password=password('admin') where user = 'root';
执行后报错 ERROR 1054(42S22) Unknown column 'password' in ‘field list’
错误的原因是 5.7版本下的mysql数据库下已经没有password这个字段了,password字段改成了authentication_string
>mysql -u root -p
Enter password: ********
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 12
Server version: 5.7.18-log 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> select User from user; #此处为查询用户命令
+-----------+
| User |
+-----------+
| ******* |
| mysql.sys |
| root |
+-----------+
3 rows in set (0.00 sec)
mysql> update user set password=password("*******") where user="*******"; #修改密码报错
ERROR 1054 (42S22): Unknown column 'password' in 'field list'
mysql> update mysql.user set authentication_string=password('*******') where user='*******'; #修改密码成功
Query OK, 1 row affected, 1 warning (0.00 sec)
Rows matched: 1 Changed: 1 Warnings: 1
mysql> flush privileges; #立即生效
Query OK, 0 rows affected (0.00 sec)
mysql> quit
Bye
n>mysql -u ******* -p #以该用户登录成功.
Enter password: ********
…………………………
mysql>
二、忘记密码情况下更改密码
修改配置
在配置文件下的[mysqld]中加入 mysqld --skip-grant-tables # 表示跳过权限表,执行后会开启一个进程
重启mysql服务 再次进入时就不用输入密码了,通过上面的修改密码
本文地址:https://blog.csdn.net/kaikai136412162/article/details/107301450
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