安装好mysql5.7后准备修改密码，命令为：mysql> update user set password=password(“新密码”) where user=”用户名”;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。

 

所以通过执行以下命令来修改密码：

 

>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.www.it.net.cn 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>