内连接三表 [英] Inner Joining three tables
本文介绍了内连接三表的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
我希望通过它们之间的公共列在内部连接三个表.
I have three tables I wish to inner join by a common column between them.
说我的桌子是;
TableA TableB TableC
我希望加入 A-B
,但也希望 B-C
都通过这个我称之为 common 的公共领域.
I wish to join A-B
, but then also B-C
all by this common field I will call common.
我已经加入了两个这样的表;
I have joined two tables like this;
dbo.tableA AS A INNER JOIN dbo.TableB AS B
ON A.common = B.common
如何添加第三个?
推荐答案
select *
from
tableA a
inner join
tableB b
on a.common = b.common
inner join
TableC c
on b.common = c.common
这篇关于内连接三表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!
查看全文