SQL Server 2005问题 [英] Sql server 2005 question

问题描述

什么是代理密钥?主键，唯一键和saroget键有什么区别?

What is Surrogate key? What is difference between primary key,unique key and saroget key?

推荐答案

Google是您的朋友:很好，经常拜访他.与在这里发布问题相比，他可以更快地回答问题.

第一个问题. Wiki: http://en.wikipedia.org/wiki/Surrogate_key [主键，唯一键之间的差异和代理键 [ ^ ]

将来，请尝试至少自己进行基础研究，不要浪费您或我们的时间.

Google is your friend: Be nice and visit him often. He can answer questions a lot more quickly than posting them here...

First question. Wiki: http://en.wikipedia.org/wiki/Surrogate_key[^]

Second question. Google: difference between primary key,unique key and surrogate key[^]

In future, please try to do at least basic research yourself, and not waste your time or ours.

这篇关于SQL Server 2005问题的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！