MySQL概念:会话与连接 [英] MySQL concepts: session vs connection

问题描述

我对MySQL概念感到困惑:会话与连接.

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

在谈论连接到MySQL时，我们使用连接术语，连接池等.

When talking about connecting to MySQL, we use connection terminology, connection pool, etc.

但是在MySQL在线文档中: http://dev.mysql.com/doc/refman/4.1/zh-CN/server-system-variables.html 讨论会话变量.

However in the 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?

谢谢.

推荐答案

会话只是成功的连接的结果.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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