分组条款未给出预期结果

Question

我有两张桌子

• InvoiceHead（InvoiceID，RetailerID，ExecutiveID，InvoiceDate）

• InvoiceItem（InvoiceID，项ID，数量，合同，金额）。

我希望按ExecutiveId和ItemId分组销售数量。

我尝试了以下查询，但它没有给出预期的结果。两个列的分组都没有发生。如下面的屏幕截图所示，相同的执行和项目没有加在一起。它们分为两行

结果的屏幕截图

SELECT 
    SecItem.ItemID
    ,SecHead.ExecutiveID
    ,sum(SecItem.QTY) AS Total_Qty
FROM Secondary_Sales.dbo.InvoiceHead AS SecHead
INNER JOIN Secondary_Sales.dbo.InvoiceItem AS SecItem 
    ON SecHead.InvoiceID = SecItem.Invoice_ID
GROUP BY 
    SecItem.ItemID
    ,SecHead.ExecutiveID

此查询在mysql中工作并提供预期结果，但同样的查询在msqlserver

中不起作用

Answer 1

尝试使用以下查询..

;with cte_1
as 
(SELECT InvoiceID,ItemID,SUM(QTY)  OVER (partition by ItemID order by ItemID)New_QTY
FROM InvoiceItem )

SELECT c.ItemID,h.ExecutiveID,sum(c.New_QTY) AS Total_Qty
FROM Secondary_Sales.dbo.InvoiceHead  h
 JOIN cte_1 c
  on h.InvoiceID=c.InvoiceID
GROUP BY h.ExecutiveID,c.ItemID

如果您想根据executiveId和item id提取总和，请使用以下查询。

;with cte_1
as
(SELECT c.ItemID,h.ExecutiveID
        ,ROW_NUMBER() OVER(partition by  h.ExecutiveID,c.ItemID order by   h.ExecutiveID,c.ItemID) RNO
       ,SUM(QTY)  OVER (partition by   h.ExecutiveID,c.ItemID order by   h.ExecutiveID,c.ItemID) AS Total_Qty
FROM Secondary_Sales.dbo.InvoiceHead  h
 JOIN econdary_Sales.dbo.InvoiceItem c
  on h.InvoiceID=c.InvoiceID)
  SELECT ExecutiveID,ItemID,Total_Qty
  FROM cte_1
  WHERE RNO=1

Answer 2

给定的查询应该有效，SQL Server不会像MySql那样实现这样的事情。我怀疑这是一个数据问题。我怀疑某些ID的数据有尾随空格。 ＆＃34; GALSR02＆＃34;不等于＆＃34; GALSR02＆＃34;。尝试此查询以查看是否是这种情况：

SELECT 
    RTRIM(SecItem.ItemID)
    ,RTRIM(SecHead.ExecutiveID)
    ,sum(SecItem.QTY) AS Total_Qty
FROM Secondary_Sales.dbo.InvoiceHead AS SecHead
INNER JOIN Secondary_Sales.dbo.InvoiceItem AS SecItem 
    ON RTRIM(SecHead.InvoiceID) = RTRIM(SecItem.Invoice_ID)
GROUP BY 
    RTRIM(SecItem.ItemID)
    ,RTRIM(SecHead.ExecutiveID)

如果可以，那么你需要运行它来纠正数据，并首先研究空白区域是如何到达那里的。一旦数据得到纠正，您就可以恢复原始查询。

UPDATE Secondary_Sales.dbo.InvoiceHead
SET ExecutiveID = RTRIM(ExecutiveID), InvoiceID = RTRIM(InvoiceID)

UPDATE Secondary_Sales.dbo.InvoiceItem
SET ItemID = RTRIM(ItemID), Invoice_ID = RTRIM(Invoice_ID)

Answer 3

尝试使用以下查询希望它有所帮助。

SELECT SecItem.ItemID,SecHead.ExecutiveID,sum(SecItem.QTY) AS Total_Qty
FROM Secondary_Sales.dbo.InvoiceHead AS SecHead
INNER JOIN Secondary_Sales.dbo.InvoiceItem AS SecItem ON SecHead.InvoiceID = SecItem.Invoice_ID
GROUP BY SecItem.ItemID,SecHead.ExecutiveID,SecItem.QTY