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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