如何編寫SQL查詢來計算滿足具有多列排除的多列條件的值？

Question

我使用MySQL作爲數據庫。

我有一個連接表與兩個字段ItemGroupID和CheckNumber適用於此查詢。

一個CheckNumber可以包含多個ItemGroupIDs和ItemGroupIDs可以包含多個CheckNumbers

我試圖計算（即滿足多個條件檢查的次數有項目組281和項目組274，但沒有項目組280或以任何記錄34。這裏的連接表的一個片段。

ItemGroupID | CheckNumber 
----------- ----------- 
    281   101 
    274   101 
    103   101 
    281   101 
    280   102 
    281   102 
    274   102 
    281   103 

對於上述表，該查詢應僅返回計數1爲CheckNumber 101，因爲它具有兩個編號281和274，和它不包含280或34。其他支票號碼不應該返回一個計數。CheckNumber 102有一個排除的Gr支票上的oupID。 CheckNumber 103不包含281 AND 274.

下面是我寫的查詢。查詢的問題是它不會排除使用ItemGroupID 280或34的檢查。我認爲這是GROUP BY中Count函數的問題。但我不確定如何重寫它來解決這個問題。

SELECT COUNT(id.CheckNumber) AS Total 
FROM ItemGroupMember igm 
    INNER JOIN ItemDetail id ON igm.ItemID = id.ItemID 
WHERE igm.ItemGroupID IN (281,274) 
    AND NOT igm.ItemGroupID IN (280,34) 
    AND id.DOB BETWEEN 3/14/2017 AND 3/14/2017 
    AND id.LocationID = 22 
GROUP BY id.CheckNumber HAVING COUNT(DISTINCT igm.ItemGroupID) = 2 

感謝幫助。

Answer 1

怎麼樣：

數據：

create table exp (
    ItemGroupID int, 
    CheckNumber int 
); 

    Insert into exp values (281, 101) ; 
    Insert into exp values (274, 101) ; 
    Insert into exp values (103, 101) ; 
    Insert into exp values (281, 101) ; 
    Insert into exp values (280, 102) ; 
    Insert into exp values (281, 102) ; 
    Insert into exp values (274, 102) ; 
    Insert into exp values (281, 103) ; 

查詢：

Select checknumber, count(*) 
From exp 
Where 
exists (Select e1.ItemGroupID From exp e1 Where e1.checknumber = exp.checknumber and e1.ItemGroupID in (281)) 
and exists (Select e1.ItemGroupID From exp e1 Where e1.checknumber = exp.checknumber and e1.ItemGroupID in (274)) 
and not exists (Select e1.ItemGroupID From exp e1 Where e1.checknumber = exp.checknumber and e1.ItemGroupID in (280, 34)) 
Group by checknumber 

真實數據：

Select checknumber, count(*) 
From (Select * From ItemGroupMember igm INNER JOIN ItemDetail id ON igm.ItemID = id.ItemID WHERE id.DOB BETWEEN 3/14/2017 AND 3/14/2017 AND id.LocationID = 22) exp 
Where 
    exists (Select e1.ItemGroupID From (Select * From ItemGroupMember igm INNER JOIN ItemDetail id ON igm.ItemID = id.ItemID WHERE id.DOB BETWEEN 3/14/2017 AND 3/14/2017 AND id.LocationID = 22) e1 Where e1.checknumber = exp.checknumber and e1.ItemGroupID in (281)) 
    and exists (Select e1.ItemGroupID From (Select * From ItemGroupMember igm INNER JOIN ItemDetail id ON igm.ItemID = id.ItemID WHERE id.DOB BETWEEN 3/14/2017 AND 3/14/2017 AND id.LocationID = 22) e1 Where e1.checknumber = exp.checknumber and e1.ItemGroupID in (274)) 
    and not exists (Select e1.ItemGroupID From (Select * From ItemGroupMember igm INNER JOIN ItemDetail id ON igm.ItemID = id.ItemID WHERE id.DOB BETWEEN 3/14/2017 AND 3/14/2017 AND id.LocationID = 22) e1 Where e1.checknumber = exp.checknumber and e1.ItemGroupID in (280, 34)) 
Group by checknumber 

Answer 2

SELECT COUNT(id.CheckNumber) AS Total 
FROM ItemDetail id 
JOIN ItemGroupMember igm ON igm.ItemID = id.ItemID AND igm.ItemGroupID IN (281,274) 
LEFT JOIN ItemGroupMember igm2 ON igm2.ItemID = id.ItemID AND igm2.ItemGroupID IN (280,34) 
WHERE 
    id.DOB BETWEEN 3/14/2017 AND 3/14/2017 
    AND id.LocationID = 22 
    AND igm2.ItemID is null -- Make sure that you exclude any where the groupID is 280 or 34 
group by id.CheckNumber having Total = 2;