解决方案：ERROR 1396 (HY000): Operation ALTER USER failed for ‘root‘@‘localhost‘。_operation alter user failed for 'root'@'localhost

mysql连数据库的时候报错:

1251 client does not support authentication protocol requested by server;consider upgrading Mysql client

ERROR 1396 (HY000): Operation ALTER USER failed for 'root'@'localhost'

解决方案

登录mysql

mysql -u root -p

输入密码

mysql> use mysql;

mysql> select user,host from user;

+------------------+-----------+
 
| user | host |
 
+------------------+-----------+
 
| root | % |
 
| admin | localhost |
 
| mysql.infoschema | localhost |
 
| mysql.session | localhost |
 
| mysql.sys | localhost |
 
| zhangj | localhost |
 
+------------------+-----------+

注意我的root，host是'%'

你可能执行的是:

ALTER USER 'root'@'localhost' IDENTIFIED WITH mysql_native_password BY '123';

改成:

ALTER USER 'root'@'%' IDENTIFIED WITH mysql_native_password BY '123';