Question

我似乎无法掌握满足我对这个问题的需求所需的sql。我到目前为止：

select * from customformresponses
INNER JOIN exhibitors ON
Exhibitors.ExhibitorId= customformresponses.ExhibitorId
WHERE customformresponses.exhibitorid='8179cde9-b922-430a-9024-bd4cb8b3d05c'
  and exhibitors.exhibitionID = 'e641a3d4-cb57-4f67-86a1-5c2f4c3cf6e0'
  and customformresponses.FormID = 'c7f5f0de-35f8-412d-9c91-eaf8bb1a3c26'

我需要在3个不同的formID值中搜索响应，但我遇到的问题是：如果我有：

customformresponses.FormID = 'c7f5f0de-35f8-412d-9c91-eaf8bb1a3c26'  or
customformresponses.FormID = 'c7f5f0de-35f8-412d-9c91-eaf8bb1a3c26' or
customformresponses.FormID = 'e69cee39-2519-434d-be3e-516ba156b444'

然后它只返回第一个真实条件的结果，而不是任何真实条件。

如何从符合此条件的行返回所有结果？

Answer 1

我认为这就是你的目标

select *
from customformresponses
INNER JOIN exhibitors
    ON Exhibitors.ExhibitorId= customformresponses.ExhibitorId
WHERE customformresponses.exhibitorid='8179cde9-b922-430a-9024-bd4cb8b3d05c'
AND exhibitors.exhibitionID = 'e641a3d4-cb57-4f67-86a1-5c2f4c3cf6e0'
AND
( customformresponses.FormID = 'c7f5f0de-35f8-412d-9c91-eaf8bb1a3c26'
  OR
  customformresponses.FormID = 'e69cee39-2519-434d-be3e-516ba156b444')

它需要匹配的Exhibitorid和exhibitionid，但对于FormID，它将匹配任何两个。

所以，如果你有两行

exhibitorid      | exhibitionid     | formid
8179cde9-b922... | c7f5f0de-35f8... | c7f5f0de-35f8-412d-9c91-eaf8bb1a3c26
8179cde9-b922... | c7f5f0de-35f8... | e69cee39-2519-434d-be3e-516ba156b444

它们都将在输出结果集

中

Answer 2

如果只是为了避免重复GUID和列名......

SELECT *
FROM customformresponses
  INNER JOIN exhibitors ON Exhibitors.ExhibitorId = customformresponses.ExhibitorId
WHERE (
  CASE customformresponses.exhibitorid WHEN '8179cde9-b922-430a-9024-bd4cb8b3d05c' THEN 1 ELSE 0 END +
  CASE exhibitors.exhibitionID WHEN 'e641a3d4-cb57-4f67-86a1-5c2f4c3cf6e0' THEN 1 ELSE 0 END +
  CASE customformresponses.FormID WHEN 'c7f5f0de-35f8-412d-9c91-eaf8bb1a3c26' THEN 1 ELSE 0 END
) = 1

Answer 3

select * from customformresponses 
INNER JOIN exhibitors     
ON Exhibitors.ExhibitorId= customformresponses.ExhibitorId 
WHERE customformresponses.exhibitorid='8179cde9-b922-430a-9024-bd4cb8b3d05c' 
AND exhibitors.exhibitionID = 'e641a3d4-cb57-4f67-86a1-5c2f4c3cf6e0' 
AND ormresponses.FormID IN  ( 'c7f5f0de-35f8-412d-9c91-eaf8bb1a3c26', 'e69cee39-2519-434d-be3e-516ba156b444')

如何在SQL中使用类似XOR的函数

3 个答案: