修改账户密码加密规则并更新用户密码
ALTER USER ‘root‘@‘localhost‘ IDENTIFIED BY ‘password‘ PASSWORD EXPIRE NEVER; //修改加密规则
ALTER USER ‘root‘@‘localhost‘ IDENTIFIED WITH mysql_native_password BY ‘password‘; //更新一下用户的密码
刷新权限
FLUSH PRIVILEGES; //刷新权限
重置密码
alter user ‘root‘@‘localhost‘ identified by ‘369258‘; //重置下密码
关闭navicat premium重新打开连接
特别感谢写这个博客的人valiant_勇哥
Ubuntu下mysql连接Navicat premium报错
原文：https://www.cnblogs.com/laochun/p/13220617.html