在多列中查找具有相同值的行

Question

我试图找到具有重复值的行,但仅基于选定数量的列,而不是单个列或整个行.例如,如果我的表看起来像这样:

ID     Address    State    Name
-------------------------------
0      7 Brown    NY       John
1      3 Red      WX       Jane
2      7 Brown    WX       Ted
3      7 Brown    NY       Fred

我的问题是:

查找行的地址和状态字段与另一行的地址和状态字段匹配的行的所有ID.

这个查询的答案是:

ID    Address    State    Name
------------------------------
0     7 Brown    NY       John
3     7 Brown    NY       Fred

有任何想法吗？

建议: 如何从单个表中选择多个列值相同的行

Answer 1

请尝试以下方法:

SELECT A.*
FROM YourTable A
INNER JOIN (SELECT Address, State
            FROM YourTable
            GROUP BY Address, State
            HAVING COUNT(*) > 1) B
ON A.Address = B.Address AND A.State = B.State

Answer 2

select *
from #table1
where Addr + St in (select Addr + St as FullAddr
             from #table1
             group by Addr + St
             having count(Addr+St) > 1)