1.用默認賬號密碼登錄MySQL服務端

[root@domin ~]# mysql -u root -p

2.切換到mysql庫

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.執行更改密碼的語句

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

Query OK, 3 rows affected (0.01 sec)

Rows matched: 3  Changed: 3  Warnings: 0

4.刷新權限表

mysql> flush privileges;

Query OK, 0 rows affected (0.00 sec)

5.現在退出就可以用新密碼登錄啦~

mysql> exit;

Bye