Question

在下面的查询中，我想总结freightCharge和LoadingandUnloadingcharges的列，并添加新的collumn totalcost值，我尝试了以下代码，无法进行做到这一点。

SELECT DISTINCT GRN.GoodsReceivedNoteNo 
     , CASE WHEN Count(GRND.GoodsReceivedNoteID) OVER(partition BY GRND.GoodsReceivedNoteID) > 1 THEN Isnull(( GRND.FreightCharges ), 0.00)  
            ELSE Isnull(( OEC.FreightCharges ), 0.00) END FreightCharge
     , CASE WHEN Count(GRND.GoodsReceivedNoteID) OVER(partition BY GRND.GoodsReceivedNoteID) > 1 THEN Isnull(( GRND.LoadingCost + GRND.UnloadingCost ), 0.00) 
            ELSE Isnull(( OEC.LoadingCost + OEC.UnloadingCost ), 0.00) END LoadingandUnloadingcharges 
FROM GoodsReceivedNoteDetail GRND  
LEFT OUTER JOIN GoodsReceivedNote GRN ON GRN.GoodsReceivedNoteID=GRND.GoodsReceivedNoteID  
LEFT OUTER JOIN OtherExpenseCost OEC ON OEC.GoodsReceivedNoteID=GRN.GoodsReceivedNoteID

Answer 1

假设你想要FreightCharge和LoadingandUnloadingcharges的总和：

Select SUM(FreightCharge) FreightCharge, SUM(LoadingandUnloadingcharges) LoadingandUnloadingcharges, SUM(FreightCharge) + SUM(LoadingandUnloadingcharges) TotalCost
from
(SELECT DISTINCT GRN.GoodsReceivedNoteNo ,CASE  
WHEN Count(GRND.GoodsReceivedNoteID) OVER(partition BY GRND.GoodsReceivedNoteID) > 1   
THEN Isnull(( GRND.FreightCharges ), 0.00)  
ELSE Isnull(( OEC.FreightCharges ), 0.00)  
END FreightCharge,CASE  
WHEN Count(GRND.GoodsReceivedNoteID) OVER(partition BY GRND.GoodsReceivedNoteID) > 1   
THEN Isnull(( GRND.LoadingCost + GRND.UnloadingCost ), 0.00)  
ELSE Isnull(( OEC.LoadingCost + OEC.UnloadingCost ), 0.00)  
END LoadingandUnloadingcharges 
FROM GoodsReceivedNoteDetail GRND  
LEFT OUTER JOIN GoodsReceivedNote GRN ON GRN.GoodsReceivedNoteID=GRND.GoodsReceivedNoteID  
LEFT OUTER JOIN OtherExpenseCost OEC ON OEC.GoodsReceivedNoteID=GRN.GoodsReceivedNoteID) as sub

Answer 2

为什么你使用select distinct和窗口函数，当好的老式聚合会这样做。然后，在SQL中，您无法在定义它的同一选择中重用别名。但是，您的逻辑很简单，可以重复（替代方法是子查询或CTE）：

SELECT GRN.GoodsReceivedNoteNo,
       (CASE WHEN Count(GRND.GoodsReceivedNoteID) > 1
             THEN Isnull(( GRND.FreightCharges ), 0.00)  
             ELSE Isnull(( OEC.FreightCharges ), 0.00)
        END) FreightCharge,
       (CASE WHEN Count(GRND.GoodsReceivedNoteID) > 1
             THEN Isnull(( GRND.LoadingCost + GRND.UnloadingCost ), 0.00) 
             ELSE Isnull(( OEC.LoadingCost + OEC.UnloadingCost ), 0.00)
        END) LoadingandUnloadingcharges ,
       (CASE WHEN Count(GRND.GoodsReceivedNoteID) > 1
             THEN Isnull(( GRND.FreightCharges ), 0.00) + Isnull(( GRND.LoadingCost + GRND.UnloadingCost ), 0.00) 
             ELSE Isnull(( OEC.FreightCharges ), 0.00) + Isnull(( OEC.LoadingCost + OEC.UnloadingCost ), 0.00)
        END) FreightCharge,
FROM GoodsReceivedNoteDetail GRND LEFT OUTER JOIN
     GoodsReceivedNote GRN
     ON GRN.GoodsReceivedNoteID = GRND.GoodsReceivedNoteID LEFT OUTER JOIN 
     OtherExpenseCost OEC
     ON OEC.GoodsReceivedNoteID = GRN.GoodsReceivedNoteID   
GROUP BY GRN.GoodsReceivedNoteNo;

注意：如果两个表都可能有重复项，那么总和可能不是您想要的。也就是说，我不认为您的原始查询是合理的，但这不是您要问的问题。

在sql server中汇总列值

2 个答案: