SQL案例不能正常工作

Question

爲什麼SQL案例不能正常工作？ 'in'的作品雖然不符合'不在'。

或者也許有更好的方法來做到這一點？

我試圖將結果應用於滿足條件集的匹配，只要它不符合其他條件集。

謝謝

---------- Newsletters ---------- 
 

 
CASE WHEN \t (\t C.ID in \t \t (SELECT [ContactID] FROM [Customers].[dbo].[uvLSProspectiveContacts] WHERE [EnrolDate] > '2016-12-31 00:00:00.000' AND YearLevel = 0 AND ReferenceTable <> 'Enquiry') 
 
\t \t \t AND C.ID not in \t (SELECT [ContactID] FROM [Customers].[dbo].[uvLSProspectiveContacts] WHERE [EnrolDate] > '2016-12-31 00:00:00.000' AND YearLevel > 0 AND ReferenceTable <> 'Enquiry') 
 
\t \t \t) 
 
\t \t \t OR 
 
\t \t \t (\t C.ID in \t \t (SELECT [ContactSpouseID] FROM [Customers].[dbo].[uvLSProspectiveContacts] WHERE [EnrolDate] > '2016-12-31 00:00:00.000' AND YearLevel = 0 AND ReferenceTable <> 'Enquiry') 
 
\t \t \t AND C.ID not in \t (SELECT [ContactSpouseID] FROM [Customers].[dbo].[uvLSProspectiveContacts] WHERE [EnrolDate] > '2016-12-31 00:00:00.000' AND YearLevel > 0 AND ReferenceTable <> 'Enquiry') 
 
\t \t \t) 
 
\t \t \t OR 
 
\t \t \t (\t ESC.ContactEnquiryID in \t \t (SELECT [ContactID] FROM [Customers].[dbo].[uvLSProspectiveContacts] WHERE [EnrolDate] > '2016-12-31 00:00:00.000' AND YearLevel = 0 AND ReferenceTable = 'Enquiry') 
 
\t \t \t AND ESC.ContactEnquiryID not in \t (SELECT [ContactID] FROM [Customers].[dbo].[uvLSProspectiveContacts] WHERE [EnrolDate] > '2016-12-31 00:00:00.000' AND YearLevel > 0 AND ReferenceTable = 'Enquiry') 
 
\t \t \t) 
 
THEN 'K' 
 

 
ELSE 
 

 
CASE WHEN \t (\t C.ID in \t \t (SELECT [ContactID] FROM [Customers].[dbo].[uvLSProspectiveContacts] WHERE [EnrolDate] > '2016-12-31 00:00:00.000' AND YearLevel > 0 AND YearLevel < 7 AND ReferenceTable <> 'Enquiry') 
 
\t \t \t AND C.ID not in \t (SELECT [ContactID] FROM [Customers].[dbo].[uvLSProspectiveContacts] WHERE [EnrolDate] > '2016-12-31 00:00:00.000' AND YearLevel = 0 AND ReferenceTable <> 'Enquiry') 
 
\t \t \t AND C.ID not in \t (SELECT [ContactID] FROM [Customers].[dbo].[uvLSProspectiveContacts] WHERE [EnrolDate] > '2016-12-31 00:00:00.000' AND YearLevel > 6 AND ReferenceTable <> 'Enquiry') 
 
\t \t \t) 
 
\t \t \t OR 
 
\t \t \t (\t C.ID in \t \t (SELECT [ContactSpouseID] FROM [Customers].[dbo].[uvLSProspectiveContacts] WHERE [EnrolDate] > '2016-12-31 00:00:00.000' AND YearLevel > 0 AND YearLevel < 7 AND ReferenceTable <> 'Enquiry') 
 
\t \t \t AND C.ID not in \t (SELECT [ContactSpouseID] FROM [Customers].[dbo].[uvLSProspectiveContacts] WHERE [EnrolDate] > '2016-12-31 00:00:00.000' AND YearLevel = 0 AND ReferenceTable <> 'Enquiry') 
 
\t \t \t AND C.ID not in \t (SELECT [ContactSpouseID] FROM [Customers].[dbo].[uvLSProspectiveContacts] WHERE [EnrolDate] > '2016-12-31 00:00:00.000' AND YearLevel > 6 AND ReferenceTable <> 'Enquiry') 
 
\t \t \t) 
 
\t \t \t OR 
 
\t \t \t (\t ESC.ContactEnquiryID in \t \t (SELECT [ContactID] FROM [Customers].[dbo].[uvLSProspectiveContacts] WHERE [EnrolDate] > '2016-12-31 00:00:00.000' AND YearLevel > 0 AND YearLevel < 7 AND ReferenceTable = 'Enquiry') 
 
\t \t \t AND ESC.ContactEnquiryID not in \t (SELECT [ContactID] FROM [Customers].[dbo].[uvLSProspectiveContacts] WHERE [EnrolDate] > '2016-12-31 00:00:00.000' AND YearLevel = 0 AND ReferenceTable = 'Enquiry') 
 
\t \t \t AND ESC.ContactEnquiryID not in \t (SELECT [ContactID] FROM [Customers].[dbo].[uvLSProspectiveContacts] WHERE [EnrolDate] > '2016-12-31 00:00:00.000' AND YearLevel > 6 AND ReferenceTable = 'Enquiry') 
 
\t \t \t) 
 
\t \t \t 
 
THEN '1-6' 
 

 
    ELSE 
 

 
CASE WHEN \t (\t C.ID in \t \t (SELECT [ContactID] FROM [Customers].[dbo].[uvLSProspectiveContacts] WHERE [EnrolDate] > '2016-12-31 00:00:00.000' AND YearLevel > 6 AND YearLevel < 13 AND ReferenceTable <> 'Enquiry') 
 
\t \t \t AND C.ID not in \t (SELECT [ContactID] FROM [Customers].[dbo].[uvLSProspectiveContacts] WHERE [EnrolDate] > '2016-12-31 00:00:00.000' AND YearLevel < 7 AND ReferenceTable <> 'Enquiry') 
 
\t \t \t) 
 
\t \t \t OR 
 
\t \t \t (\t C.ID in \t \t (SELECT [ContactSpouseID] FROM [Customers].[dbo].[uvLSProspectiveContacts] WHERE [EnrolDate] > '2016-12-31 00:00:00.000' AND YearLevel > 6 AND YearLevel < 13 AND ReferenceTable <> 'Enquiry') 
 
\t \t \t AND C.ID not in \t (SELECT [ContactSpouseID] FROM [Customers].[dbo].[uvLSProspectiveContacts] WHERE [EnrolDate] > '2016-12-31 00:00:00.000' AND YearLevel < 7 AND ReferenceTable <> 'Enquiry') 
 
\t \t \t) 
 
\t \t \t OR 
 
\t \t \t (\t ESC.ContactEnquiryID in \t \t (SELECT [ContactSpouseID] FROM [Customers].[dbo].[uvLSProspectiveContacts] WHERE [EnrolDate] > '2016-12-31 00:00:00.000' AND YearLevel > 6 AND YearLevel < 13 AND ReferenceTable = 'Enquiry') 
 
\t \t \t AND ESC.ContactEnquiryID not in \t (SELECT [ContactSpouseID] FROM [Customers].[dbo].[uvLSProspectiveContacts] WHERE [EnrolDate] > '2016-12-31 00:00:00.000' AND YearLevel < 7 AND ReferenceTable = 'Enquiry') 
 
\t \t \t) 
 
THEN '7-6' 
 

 
    ELSE 
 

 
CASE WHEN \t (\t C.ID in \t \t (SELECT [ContactID] FROM [Customers].[dbo].[uvLSProspectiveContacts] WHERE [EnrolDate] > '2016-12-31 00:00:00.000' AND ReferenceTable <> 'Enquiry') 
 
\t \t \t) 
 
\t \t \t OR 
 
\t \t \t (\t C.ID in \t \t (SELECT [ContactSpouseID] FROM [Customers].[dbo].[uvLSProspectiveContacts] WHERE [EnrolDate] > '2016-12-31 00:00:00.000' AND ReferenceTable <> 'Enquiry') 
 
\t \t \t) 
 
\t \t \t OR 
 
\t \t \t (\t ESC.ContactEnquiryID in \t \t (SELECT [ContactID] FROM [Customers].[dbo].[uvLSProspectiveContacts] WHERE [EnrolDate] > '2016-12-31 00:00:00.000' AND ReferenceTable = 'Enquiry') 
 
\t \t \t) 
 

 
THEN 'General' 
 

 
    ELSE '' END END 
 

 
\t END 
 
END AS ProspectiveNews,

Answer 1

嘗試NOT EXISTS：。

AND NOT EXISTS (SELECT * FROM [Customers].[dbo].[uvLSProspectiveContacts] 
WHERE [EnrolDate] > '2016-12-31 00:00:00.000' AND YearLevel > 0 AND 
ReferenceTable <> 'Enquiry' AND [ContactID] = C.ID) 

Answer 2

歡迎您到空值地獄。
更換每

x not in (select col from t) 

與

x not in (select col from t where col is not null) 

（除非你知道x被定義爲NOT NULL）

---

x not in (a,b,c,...)
是
((x <> a) and (x <> b) and (x <> c) and ...)快捷方式
如果其中一個值（例如， b）爲NULL，則條件爲NULL <> b。
由於沒有什麼不同於NULL，所以這個謂詞沒有被滿足，並且它不能滿足整個條件。