mysql有时候忘记密码了怎么办?我给出案例和说明!一下就解决了!
Windows下的实际操作如下
1.关闭正在运行的MySQL。
2.打开DOS窗口,转到mysqlbin目录。
3.输入mysqld --skip-grant-tables回车。如果没有出现提示信息,那就对了。
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mysqlbin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; (>是本来就有的提示符,别忘了最后的分号)
6.改密码:> update user set password=password("520") where user="root"; (别忘了最后的分号)
7.刷新权限(必须的步骤)>flush privileges;
8.退出 > q
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。
第一步
C:Documents and SettingsAdministrator>cd D:webwww.downcc.comMysqlMySQL Se
rver5.5bin
C:Documents and SettingsAdministrator>d:
D:webwww.downcc.comMysqlMysql server5.5bin>mysqld --skip-grant-tables
第二步
Microsoft Windows [版本 5.2.3790]
(C) 版权所有 1985-2003 Microsoft Corp.
C:Documents and SettingsAdministrator>cd D:webwww.downcc.comMysqlMySQL Se
rver5.5bin
C:Documents and SettingsAdministrator>d:
D:webwww.downcc.comMysqlMySQL Server5.5bin>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:webwww.downcc.comMysqlMySQL Server5.5bin>