作業系統：windows作業系統，xp或win7.

C:\Users\Administrator>cd C:\Program Files\MySQL\MySQL Server 5.5\bin

 

C:\Program Files\MySQL\MySQL Server 5.5\bin>net stop mysql

MySQL 服務正在停止.

MySQL 服務已成功停止。

 C:\Program Files\MySQL\MySQL Server 5.5\bin>mysqld --skip-grant-tables

 你會看到視窗游標在下一行的第一個位置閃爍，這說明已經啟動了，不需要管。

 新建一個命令列視窗同樣進入到e:\mysql5.5\bin目錄，啟動mysql 

 C:\Program Files\MySQL\MySQL Server 5.5\bin>mysql

Welcome to the MySQL monitor.  Commands end with ; or \g.

Your MySQL connection id is 1

Server version: 5.5.36 MySQL Community Server (GPL)

 

Copyright (c) 2000, 2014, Oracle and/or its affiliates. All rights reserved.

 

Oracle is a registered trademark of Oracle Corporation and/or its

affiliates. Other names may be trademarks of their respective

owners.

 

Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.

 

mysql> show databases;

+--------------------+

| Database           |

+--------------------+

| information_schema |

| mysql              |

| performance_schema |

| test               |

+--------------------+

4 rows in set (0.00 sec)

 

mysql> use mysql;

Database changed

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

Query OK, 2 rows affected (0.00 sec)

Rows matched: 2  Changed: 2  Warnings: 0

 

mysql> flush privileges;

Query OK, 0 rows affected (0.01 sec)

 

mysql> quit

Bye

看看那工作管理員中是否有mysqld.exe程式，如有，kill .

C:\Program Files\MySQL\MySQL Server 5.5\bin>net start mysql

MySQL 服務正在啟動 .

MySQL 服務已經啟動成功。

 

C:\Program Files\MySQL\MySQL Server 5.5\bin>mysql -uroot -poracle

Welcome to the MySQL monitor.  Commands end with ; or \g.

Your MySQL connection id is 1

Server version: 5.5.36 MySQL Community Server (GPL)

 

Copyright (c) 2000, 2014, Oracle and/or its affiliates. All rights reserved.

 

Oracle is a registered trademark of Oracle Corporation and/or its

affiliates. Other names may be trademarks of their respective

owners.

 

Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.

 

mysql>