方法1: 用SET PASSWORD命令

mysql -u root

mysql> SET PASSWORD FOR 'root'@'localhost' = PASSWORD('newpass');


方法2:用mysqladmin

mysqladmin -u root password "newpass"

 

如果root已经设置过密码,采用如下方法 

mysqladmin -u root password oldpass "newpass"


方法3: 用UPDATE直接编辑user表

mysql -u root 

mysql> use mysql; 

mysql> UPDATE user SET Password = PASSWORD('newpass') WHERE user = 'root';

mysql> FLUSH PRIVILEGES;


在丢失root密码的时候,可以这样

mysqld_safe --skip-grant-tables& 

mysql> user mysql 

mysql> UPDATE user SET password=PASSWORD("new password") WHERE user='root';

mysql> FLUSH PRIVILEGES;

转自:http://jingyan.baidu.com/article/0320e2c198ad5f1b87507bc8.html


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