SQL加入查询11

Question

我想加入联系人与Cell或Alt_no匹配的两个表 我试过这两个 没有工作

Select *
from #Sales4 a
left join #Feed_Final b
on a.[Contact] in (b.Alt_no,b.Cell)

Select *
from #Sales4 a
left join #Feed_Final b
on a.[Contact] = b.Alt_no or a.[Contact] = b.Cell

Answer 1

SELECT *  FROM Sales4  a 
LEFT JOIN Feed_Final b on a.Contact = b.Cell or a.Contact = b.Alt_no 
GROUP BY b.Contact;