尝试了解mysql的概念:session v.s.联系 [英] try to understand mysql concepts: session v.s. connection

问题描述

我对mysql概念有点困惑:会话与连接.

I'm a bit confused by mysql concepts: session vs connection.

当我们谈论连接到mysql时.我们使用连接术语以及连接池等.

When we are talking about connecting to mysql. We use connection terminology, as well as connection pool and etc.

但是，我们去mysql在线文档: http: //dev.mysql.com/doc/refman/4.1/en/server-system-variables.html .它讨论了会话变量.

However let's go to mysql online doc: http://dev.mysql.com/doc/refman/4.1/en/server-system-variables.html. It talks about session variables.

它们非常相似.如何区分它们?

They are quite similar. How to distinguish them?

提前谢谢.

推荐答案

session仅仅是成功connection的结果.任何MySQL客户端都需要一些连接设置来建立连接，并且在建立连接后，它会获取连接ID(线程ID)和一些称为会话的上下文.

A session is just a result of a successful connection. Any MySQL client requires some connection settings to establish a connection and after the connection has been established it acquires a connection id (thread id) and some context which is called session.

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