查找具有一個共同的現場記錄，但不同的值等領域

Question

我有這個結構表中的SQL Server：

Promotions 
====== 
id 
promoId 
customerId 
dealPeriod 
lob 

我需要找到的記錄組，其中promoId的記錄是相同，但customerId，dealPeriod或lob是不同的。

所以，我會提不起興趣返回此：

id promoId  customerId dealPeriod lob 
1  p00100   100   2013 PL 
2  p00100   100   2013 PL 
3  p00100   100   2013 PL 

但我會想與吊球不同的值返回該組：

id promoId  customerId dealPeriod lob 
1  p00101   100   2013 PL 
2  p00101   100   2013 PL 
3  p00101   100   2013 RT 

或者這組不同的客戶ID ：

id promoId  customerId dealPeriod lob 
1  p00102   100   2013 PL 
2  p00102   200   2013 PL 
3  p00102   100   2013 PL 

或與不同的處理週期的這個組：

id promoId  customerId dealPeriod lob 
1  p00103   100   2013 PL 
2  p00103   200   2014 PL 
3  p00103   100   2013 PL 

以下是我的嘗試：

SELECT t1.id, t1.customerId, t1.promoId, t1.dealPeriod, t1.lob 
FROM promotion t1 
INNER JOIN promotion t2 ON t1.promoid = t2.promoid 
WHERE (t1.customernumber <> t2.customernumber) 
OR (t1.dealPeriod <> t2.dealPeriod) 
OR (t1.lob <> t2.lob) 

這將返回的記錄，包括那些我不想：

id promoId  customerId dealPeriod lob 
1  p00100   100   2013 PL 
2  p00100   100   2013 PL 
3  p00100   100   2013 PL 
4  p00101   102   2013 RT 
5  p00101   102   2013 RT 
6  p00101   102   2013 RT 

Answer 1

試試這個

SELECT DISTINCT p.* 
FROM Promotions p 
    JOIN Promotions q ON p.promoid = q.promoid AND p.id <> q.id 
WHERE (p.customerId <> q.customerId) 
    OR (p.dealPeriod <> q.dealPeriod) 
    OR (p.lob <> q.lob) 

Answer 2

;With CTE 
AS 
(
    SELECT * , RN = ROW_NUMBER() OVER (PARTITION BY promoId ORDER BY promoId) 
    FROM Promotions 
) 
SELECT * 
FROM CTE