SQL执行错误#1251.从数据库的响应：

问题：

使用 MySQL-Font 连接数据库时，显示如下错误：

解决方法：

1. 使用管理员身份运行命令提示符（win + R,然后输入 cmd )，进入到MySQL的bin目录中
2. 输入 mysql -u root -p ，然后输入密码，进入到 mysql 服务中
3. 输入 ALTER USER ‘root’@‘localhost’ IDENTIFIED WITH
   mysql_native_password BY ‘123456’; （123456 为你设置的新密码）
4. 重新使用 MySQL-Font 连接数据库

C:\WINDOWS\system32>cd C:\mysql-8.0.25-winx64\bin

C:\mysql-8.0.25-winx64\bin>mysql -u root -p
Enter password:
Welcome to the MySQL monitor.  Commands end with ; or \g.
Your MySQL connection id is 14
Server version: 8.0.25 MySQL Community Server - GPL

Copyright (c) 2000, 2021, 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.

mysql> ALTER USER 'root'@'localhost' IDENTIFIED WITH mysql_native_password BY '123456';
Query OK, 0 rows affected (0.02 sec)