查看服务器版本:

cat /etc/redhat-release 

查看mysql 版本:

 

mysql -u root -p

use mysql;

###mysql 5.7以上。。

update user SET authentication_string = PASSWORD('newpassword') WHERE user = 'root';

###mysql 5.7一下旧版本

update user SET password = PASSWORD('newpassword') WHERE user = 'root';

flush privileges;

exit;

 

可以重启下mysql服务

centos6.5  :   mysql mysqld restart

centos7 : systemctl  restart  mysqld

 多个方法:

在 Navicat for MySQL 下面直接执行  SET PASSWORD FOR 'root'@'localhost' = PASSWORD('newpass');   就可以

 

 

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 -u root mysql

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

  mysql> FLUSH PRIVILEGES;

参考:http://www.cnblogs.com/liufei88866/p/5619215.html

posted on 2017-06-09 10:41  阚壠  阅读(8619)  评论(0编辑  收藏  举报