《Mysql必读mysql忘记密码怎么办(windows linux)》要点：
本文介绍了Mysql必读mysql忘记密码怎么办(windows linux)，希望对您有用。如果有疑问，可以联系我们。
MYSQL学习先给大家介绍windows下mysql忘记密码的解决方案.
MYSQL学习 Windows下的实际操作如下
MYSQL学习 1.关闭正在运行的MySQL.
MYSQL学习 2.打开DOS窗口,转到mysql\bin目录.
MYSQL学习 3.输入mysqld --skip-grant-tables回车.如果没有出现提示信息,那就对了.
MYSQL学习 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.
MYSQL学习 5.输入mysql回车,如果成功,将出现MySQL提示符 >
MYSQL学习 6. 连接权限数据库>use mysql; (>是本来就有的提示符,别忘了最后的分号)
MYSQL学习 6.改密码：> update user set password=password("520") where user="root"; (别忘了最后的分号)
MYSQL学习 7.刷新权限(必须的步骤)>flush privileges;
MYSQL学习 8.退出 > \q
MYSQL学习 9.注销系统,再进入,开MySQL,使用用户名root和刚才设置的新密码123456登陆.
MYSQL学习 第一步
MYSQL学习 C:\Documents and Settings\Administrator>cd D:\web\www.php100.com\Mysql\MySQL Se
rver5.5\bin
C:\Documents and Settings\Administrator>d:
D:\web\www.php100.com\Mysql\MySQL Server5.5\bin>mysqld --skip-grant-tables
MYSQL学习 第二步
MYSQL学习 Microsoft Windows [版本 5.2.3790]
(C) 版权所有 1985-2003 Microsoft Corp.
C:\Documents and Settings\Administrator>cd D:\web\www.php100.com\Mysql\MySQL Se
rver5.5\bin
C:\Documents and Settings\Administrator>d:
D:\web\www.php100.com\Mysql\MySQL Server5.5\bin>mysql
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 1
Server version: 5.5.10 MySQL Community Server (GPL)
Copyright (c) 2000, 2010, Oracle and/or its affiliates. All rights reserved.
Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.
Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.
mysql> use mysql;
Database changed
mysql> update user set password=password("520") where user="root";
Query OK, 1 row affected (0.00 sec)
Rows matched: 1 Changed: 1 Warnings: 0
mysql> flush privileges;
Query OK, 0 rows affected (0.00 sec)
mysql> \q
Bye
D:\web\www.php100.com\Mysql\MySQL Server5.5\bin>
MYSQL学习下面给大家介绍linux下mysql的root密码忘记解决方案
MYSQL学习1．首先确认服务器出于安全的状态,也就是没有人能够任意地连接MySQL数据库.
MYSQL学习因为在重新设置MySQL的root密码的期间,MySQL数据库完全出于没有密码保护的状态下,其他的用户也可以任意地登录和修改MySQL的信息.可以采用将MySQL对外的端口封闭,并且停止Apache以及所有的用户进程的方法实现服务器的准安全状态.最安全的状态是到服务器的Console上面操作,并且拔掉网线.
MYSQL学习2．修改MySQL的登录设置：
MYSQL学习# vi /etc/my.cnf
MYSQL学习在[mysqld]的段中加上一句：skip-grant-tables
MYSQL学习例如：
MYSQL学习[mysqld]
datadir=/var/lib/mysql
socket=/var/lib/mysql/mysql.sock
skip-grant-tables
MYSQL学习保存并且退出vi.
MYSQL学习3．重新启动mysqld
# /etc/init.d/mysqld restart
Stopping MySQL: [ OK ]
Starting MySQL: [ OK ]
MYSQL学习4．登录并修改MySQL的root密码
MYSQL学习# /usr/bin/mysql
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 3 to server version: 3.23.56
Type 'help;' or '\h' for help. Type '\c' to clear the buffer.
mysql> USE mysql ;
Reading table information for completion of table and column names
You can turn off this feature to get a quicker startup with -A
Database changed
mysql> UPDATE user SET Password = password ( 'new-password' ) WHERE User = 'root' ;
Query OK, 0 rows affected (0.00 sec)
Rows matched: 2 Changed: 0 Warnings: 0
mysql> flush privileges ;
Query OK, 0 rows affected (0.01 sec)
mysql> quit
Bye
MYSQL学习5．将MySQL的登录设置修改回来
MYSQL学习# vi /etc/my.cnf
将刚才在[mysqld]的段中加上的skip-grant-tables删除
保存并且退出vi.
MYSQL学习6．重新启动mysqld
MYSQL学习# /etc/init.d/mysqld restart
Stopping MySQL: [ OK ]
Starting MySQL: [ OK ]
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