Centos系統下如何修改Mysql數據庫的root賬號密碼

1、用帳號登錄mysql

mysql –u root -p

或#mysql –u root

2、改變用戶數據庫

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、修改密碼

     密碼要用password()函數進行加密?。。?！藍色字體是新密碼

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、刷新權限表

命令：mysql> flush privileges;

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

5、退出mysql并對mysql進行重啟即可??！

service mysqld restart