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Home > Database > Mysql Tutorial > 谁能用简明扼要的语言给我描述一下mysql表的关联?

谁能用简明扼要的语言给我描述一下mysql表的关联?

WBOY
Release： 2016-06-06 09:33:41
Original
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mysql语言

感觉表的关联是mysql学习的一个难点，能具体说说的表的关联究竟是怎么一回事?
有什么用处?
是不是分三种关联:左关联 右关联 内关联?

感觉网上说的都太高大上了，想我这样的mysql入门菜鸟很难理解。
能不能用简单的语言给描述一下?
谢谢。

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