>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)
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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>