Home Database Mysql Tutorial MySQL修改root密码的几种方法_MySQL

MySQL修改root密码的几种方法_MySQL

May 27, 2016 pm 02:29 PM
mysql root password

本文整理了四种在MySQL中修改root密码的方法,希望对大家有所帮助。全部方法经过测试通过。

方法1: 用SET PASSWORD命令

  首先登录MySQL。
  格式:mysql> set password for 用户名@localhost = password('新密码');
  例子:mysql> set password for root@localhost = password('bitsCN.com');
     上面例子将用户root的密码更改为bitsCN.com 

方法2:用mysqladmin

  格式:mysqladmin -u用户名 -p旧密码 password 新密码
  例子:mysqladmin -uroot -p123456 password bitsCN.com
             上面例子将用户root原来的密码123456改为新密码bitsCN.com

方法3:用UPDATE直接编辑user表

  首先登录MySQL。
  mysql> use mysql;
  mysql> update user set password=password('bitsCN.com') where user='root' and host='localhost';
  mysql> flush privileges;

方法4:在忘记root密码的时候,可以这样。

  以windows为例:
  1. 关闭正在运行的MySQL服务。
  2. 打开DOS窗口,转到mysql\bin目录。
  3. 输入mysqld --skip-grant-tables 回车。--skip-grant-tables 的意思是启动MySQL服务的时候跳过权限表认证
  4. 再开一个DOS窗口(因为刚才那个DOS窗口已经不能动了),转到mysql\bin目录。
  5. 输入mysql回车,如果成功,将出现MySQL提示符 >。
  6. 连接权限数据库: use mysql; 。
  6. 改密码:update user set password=password("bitsCN.com") where user="root";(别忘了最后加分号) 。
  7. 刷新权限(必须步骤):flush privileges; 。
  8. 退出  quit。
  9. 注销系统,再进入,使用用户名root和刚才设置的新密码bitsCN.com登录。

 以上就是MySQL修改root密码的几种方法_MySQL的内容,更多相关内容请关注PHP中文网(www.php.cn)!


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