MySql5.5忘记root密码怎么办
使用mysql5.5,突然root密码忘记,怎么也登录不了,很急人,该怎么解决呢?下面通过本文给大家介绍mysql5.5忘记root密码的解决办法,需要的朋友参考下吧
方法一:
操作系统:windows操作系统,xp或win7.
c:\users\administrator>cd c:\program files\mysql\mysql server 5.5\bin
c:\program files\mysql\mysql server 5.5\bin>net stop mysql
mysql 服务正在停止.
mysql 服务已成功停止。
c:\program files\mysql\mysql server 5.5\bin>mysqld --skip-grant-tables
你会看到窗口光标在下一行的第一个位置闪烁,这说明已经启动了,不需要管。
新建一个命令行窗口同样进入到e:\mysql5.5\bin目录,启动mysql
c:\program files\mysql\mysql server 5.5\bin>mysql welcome to the mysql monitor. commands end with ; or \g. your mysql connection id is 1 server version: 5.5.36 mysql community server (gpl) copyright (c) 2000, 2014, 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> show databases; +--------------------+ | database | +--------------------+ | information_schema | | mysql | | performance_schema | | test | +--------------------+ 4 rows in set (0.00 sec) mysql> use mysql; database changed mysql> update user set password=password('oracle') where user='root'; query ok, 2 rows affected (0.00 sec) rows matched: 2 changed: 2 warnings: 0 mysql> flush privileges; query ok, 0 rows affected (0.01 sec) mysql> quit bye
看看那任务管理器中是否有mysqld.exe进程,如有,kill .
c:\program files\mysql\mysql server 5.5\bin>net start mysql
mysql 服务正在启动 .
mysql 服务已经启动成功。
c:\program files\mysql\mysql server 5.5\bin>mysql -uroot -poracle welcome to the mysql monitor. commands end with ; or \g. your mysql connection id is 1 server version: 5.5.36 mysql community server (gpl) copyright (c) 2000, 2014, 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>
方法二:
操作系统:windows操作系统,xp或win7.
1.dos命令行窗口 进入e:\mysql5.5\bin ,停止mysql 服务
e:\mysql5.5\bin>net stop mysql
注意:看看那任务管理器中是否有mysqld.exe进程,如有,kill them all.
2. 以不检查权限的方式启动mysql
e:\mysql5.5\bin>mysqld.exe --skip-grant-tables
你会看到窗口光标在下一行的第一个位置闪烁,这说明已经启动了,不需要管。
3. 新建一个命令行窗口同样进入到e:\mysql5.5\bin目录,启动mysql
e:\mysql5.5\bin>mysql
4. 修改root密码
mysql>use mysql mysql>update user set password=password('new_password') where user='root'; mysql>flush privileges; mysql>quit
5. 看看那任务管理器中是否有mysqld.exe进程,如有,kill them all.
6. 重启mysql,就可以用你设置新密码登陆
e:\mysql5.5\bin>net start mysql e:\mysql5.5\bin>mysql -u root -pnew_password that's all .