mysql修改密码及忘记密码如何处理

本文摘要：
1. 新建用户 并 指定密码

2. 修改密码

3. 忘记密码的解决方案

新建用户并指定密码
1）[windows | linux] mysql -uroot -p

Enter password:******

mysql> create user 'keyman'@'127.0.0.1' identified by 'keyman';

mysql> grant usage on *.* to 'harry'@'127.0.0.1' identified by 'harry';

mysql> exit

[windows | linux] mysql -ukeyman -pkeyman -h127.0.0.1

mysql> exit

[windows | linux] mysql -uharry -pharry -h127.0.0.1

mysql修改密码的方法总结如下

1) [windows | linux] mysql -uroot -p
mysql> set password for 'keyman'@'127.0.0.1' = password('keyman123');

mysql> flush privileges;

//下面的语句只能修改自己的密码

mysql> set password = password('keyman123');

2) [windows | linux] mysql -uroot -p
mysql> grant usage on *.* to 'keyman'@'127.0.0.1' identified by 'keyman123';
3) [windows | linux] mysql -uroot -h127.0.0.1 -p password "new_password"

忘记密码的解决方案
1）停止mysql数据库

[windows] net stop mysql

[linux] service mysqld stop

2) 以不加载授权表的方式启动数据库

[windows | linux] add below line to my.ini or my.cnf configuration file

[mysqld]

......................
skip-grant-tables
......................
[windows] net start mysql
[linux] service mysqld start
3) 登陆数据库并修改密码
[windows | linux] mysql -uroot mysql
mysql> update user set password=password('new_password') where user = 'root';

mysql> flush privileges;

mysql> exit

4) 重新启动数据库

[windows | linux] remove 'skip-grant-tables' from configuration file

[windows] net stop mysql

[windows] net start mysql

[linux] service mysqld restart

5) 使用新密码进行登陆

[windows | linux] mysql -uroot -pnew_password

mysql>

以上内容仅供参考，如有遗误，望请谅解。

本文出自 “Keyman” 博客，请务必保留此出处http://keyman.blog.51cto.com/9807984/1652372