Centos系统下如何修改Mysql数据库的root账号密码

1、用帐号登录mysql

mysql –u root -p

或#mysql –u root

2、改变用户数据库

命令：mysql>use mysql

mysql> use mysql
Reading table information for completion of table and column names
You can turn off this feature to get a quicker startup with -A

Database changed

3、修改密码

     密码要用password()函数进行加密！！！！蓝色字体是新密码

命令：mysql> update user set password=password('root') where user='root';

mysql> update user set password=password('root') where user='root';
Query OK, 3 rows affected (0.00 sec)
Rows matched: 3  Changed: 3  Warnings: 0

4、刷新权限表

命令：mysql> flush privileges;

mysql> flush privileges;
Query OK, 0 rows affected (0.00 sec)

5、退出mysql并对mysql进行重启即可！！

service mysqld restart