1). 用set password
mysql -u root
mysql> set password for 'root'@'localhost' = password('newpass');
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
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 -u root mysql
mysql> update user set password=password(new password) where user='root';
mysql> flush privileges;?
转自:http://www.linuxdiyf.com/viewarticle.php?id=77898
my blogs - zhouhr
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