修改一个用户的密码，网上搜到的命令为如下
| 1 | 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
所以请使用一下命令：
>mysql -u root -pEnter password: ********Welcome to the MySQL monitor. Commands end with ; or \g.Your MySQL connection id is 12Server 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 itsaffiliates. Other names may be trademarks of their respectiveowners.Type ‘help;‘ or ‘\h‘ for help. Type ‘\c‘ to clear the current input statement.mysql> use mysql;Database changedmysql> 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: 1mysql> flush privileges; #立即生效Query OK, 0 rows affected (0.00 sec)mysql> quitByen>mysql -u ******* -p #以该用户登录成功.Enter password: ********…………………………mysql> 
