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mysql数据库修改密码方法

Jun 07, 2016 pm 05:51 PM

本文章介绍了七种不同的方法来修改mysql数据的密码,有需要的同学可以参考一下哈。

方法一:

(适用于管理员或者有全局权限的用户重设其它用户的密码)
进入命令行模式
mysql -u root mysql
mysql> UPDATE user SET pass=PASSWORD("new password") WHERE user='name';
  mysql> FLUSH PRIVILEGES;
  mysql> QUIT


方法二:
(应用同上,只是方法不同)
 mysql -u root mysql
  mysql> SET PASSWORD FOR name=PASSWORD('new password');
  mysql> QUIT


(以上两种方法我不常用,如果是管理员,我会用其它如phpmyadmin或者MYSQL-front 等工具来管理用户权限,比较直观又方便)


方法三
使用phpmyadmin,这是最简单的了,修改mysql库的user表,
不过别忘了使用PASSWORD函数。

方法四

使用mysqladmin,这是前面声明的一个特例。
mysqladmin -u root -p password mypasswd
输入这个命令后,需要输入root的原密码,然后root的密码将改为mypasswd。
把命令里的root改为你的用户名,你就可以改你自己的密码了。
当然如果你的mysqladmin连接不上mysql server,或者你没有办法执行mysqladmin,
那么这种方法就是无效的。
而且mysqladmin无法把密码清空。
下面的方法都在mysql提示符下使用,且必须有mysql的root权限:

方法五

mysql> INSERT INTO mysql.user (Host,User,Password) VALUES(’%’,’jeffrey’,PASSWORD(’biscuit’));
mysql> FLUSH PRIVILEGES
确切地说这是在增加一个用户,用户名为jeffrey,密码为biscuit。
注意要使用PASSWORD函数,然后还要使用FLUSH PRIVILEGES。

方法六

和方法三一样,只是使用了REPLACE语句
mysql> REPLACE INTO mysql.user (Host,User,Password)
VALUES(%,jeffrey,PASSWORD(iscuit));
mysql> FLUSH PRIVILEGES

方法七
使用SET PASSWORD语句,
mysql> SET PASSWORD FOR jeffrey@"%" = PASSWORD(iscuit);
你也必须使用PASSWORD()函数,
但是不需要使用FLUSH PRIVILEGES。


方法八
 
使用GRANT ... IDENTIFIED BY语句
mysql> GRANT USAGE ON *.* TO jeffrey@"%" IDENTIFIED BY iscuit;
这里PASSWORD()函数是不必要的,也不需要使用FLUSH PRIVILEGES。

方法有很多但最终于就是那种句命令在这里执行了。

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