操作之前先檢視自己MySql的版本號對號入座。

mysql --version

5.7.6版本以上

連線

mysql -u root

修改密碼

ALTER USER user IDENTIFIED BY 'new_password';

修改密碼與授權遠端

ALTER USER `'root'@'localhost'` IDENTIFIED BY 'new_password'

查詢表資訊

SELECT User, Host, HEX(authentication_string) FROM mysql.user;

5.7.6版本以下

連線

mysql -u
 
 root

修改密碼

SET PASSWORD FOR user = PASSWORD('new_password');

修改密碼與授權遠端

SET PASSWORD FOR 'user'@'localhost' = PASSWORD('new_password');

查詢表資訊

SELECT User, Host, Password FROM mysql.user;