MySQL中文参考手册-- 连接与断开服务者_MySQL
手册
本章通过演示如何使用mysql客户程序创造和使用一个简单的数据库,提供一个MySQL的 入门教程。mysql(有时称为“终端监视器”或只是“监视”)是一个交互式程序,允许你连接 一个MySQL服务器,运行查询并察看结果。mysql可以用于批模式:你预先把查询放在一个文件 中,然后告诉mysql执行文件的内容。使用mysql的两个方法都在这里涉及。
为了看清由mysql提供的一个选择项目表了,用--help选项调用它:
shell> mysql --help
本章假定mysql已经被安装在你的机器上,并且有一个MySQL服务器你可以连接。如果这不是真的, 联络你的MySQL管理员。(如果你是管理员,你将需要请教这本手册的其他章节。)
本章描述建立和使用一个数据库的全过程。如果你仅仅对存取一个已经存在数据库感兴趣, 你可能想要跳过描述怎样创建数据库及它所包含的表的章节。
既然本章本质上是一个教程,许多细节有必要被省略。对于这里所涉及的话题的更多信息, 咨询本手册的相关章节。
8.1 连接与断开服务者
为了连接服务器,当你调用mysql时,你通常将需要提供一个MySQL用户名和很可能,一个口令。 如果服务器运行在不是你登录的一台机器上,你也将需要指定主机名。联系你的管理员以找出 你应该使用什么连接参数进行连接(即,那个主机,用户名字和使用的口令)。一旦你知道正确 的参数,你应该能象这样连接:
shell> mysql -h host -u user -p
Enter password: ********
********代表你的口令;当mysql显示Enter password:提示时输入它。
如果能工作,你应该看见mysql>提示后的一些介绍信息:
shell> mysql -h host -u user -p
Enter password: ********
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 459 to server version: 3.22.20a-log
Type 'help' for help.
mysql>
提示符告诉你mysql准备为你输入命令。
一些MySQL安装允许用户以“anoymous”(匿名)用户连接在本地主机上运行的服务器。如果在 你的机器是这种情况,你应该能通过没有任何选项地调用mysql与该服务器连接:
shell> mysql
在你成功地连接后,你可以在mysql>提示下打入QUIT随时断开:
mysql> QUIT
Bye
你也可以键入control-D断开。

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