除数列仅返回一行

Question

我正在编写一个SQL查询来检查数据库中一组销售项目的Gross Profit Percentage 。

SELECT T0.[itmsgrpcod], 
       T0.sell, 
       T0.cost, 
       ( T0.sell / T0.cost ) AS "GP" 
FROM   (SELECT T0.[itmsgrpcod], 
               Sum(T1.[price])      AS "Sell", 
               Sum(T1.[stockprice]) AS "Cost" 
        FROM   inv1 T1 
               LEFT OUTER JOIN oitm T0 
                            ON T1.[itemcode] = T0.[itemcode] 
        GROUP  BY T0.[itmsgrpcod]) T0 

当我将SELECT语句设为：时，我遇到了一个奇怪的问题：

SELECT T0.[ItmsGrpCod], T0.Sell, T0.Cost

它返回96行-正确的数量，并填满了卖出和成本数据。

当我添加列时：

    (T0.Sell / T0.Cost) as "GP"

它仅返回查询的第一行，并且正确计算了GP。

Answer 1

事实证明，SAP Business One的查询生成器没有报告“按零划分”。 当我在SQL Server Management Studio中尝试查询时，该查询提供了正确的“零除”错误，并且解决了该问题。

完整的查询，针对那些感兴趣的人：

SELECT T0.ItmsGrpCod,
       SUM(T1.Price) As "Sell",
       ISNULL(SUM(T1.StockPrice), 0) As "Cost",
       CASE WHEN SUM(T1.StockPrice) = 0 THEN 100 
            ELSE (SUM(T1.Price) - SUM(T1.StockPrice)) / SUM(T1.Price) * 100
       END As "GP"
FROM INV1 T1 LEFT OUTER JOIN OITM T0 ON T1.ItemCode = T0.ItemCode
GROUP BY T0.ItmsGrpCod
ORDER BY T0.ItmsGrpCod

Answer 2

您能尝试一下吗，我没做太多。 只需确保将卖出和成本转换为十进制即可。

SELECT  T0.[ItmsGrpCod], 
        T0.Sell, 
        T0.Cost, 
        (T0.Sell / T0.Cost) as GP
FROM    (SELECT     T0.[ItmsGrpCod], 
                    CAST(SUM(T1.[Price]) AS DECIMAL(12,2)) as Sell, 
                    CAST(SUM(T1.[StockPrice]) AS DECIMAL(12,2)) as Cost
        FROM        INV1 T1 
        LEFT JOIN   OITM T0 
        ON          T1.[ItemCode] = T0.[ItemCode]
        GROUP BY    T0.[ItmsGrpCod]) T0

Answer 3

我认为您的alias有问题

尝试这个

SELECT T.[ItmsGrpCod],T.Sell,T.Cost, CAST(T.Sell AS Decimal) / T.Cost As GP
FROM
    (
      SELECT T0.[ItmsGrpCod],SUM(T1.[Price]) As Sell,SUM(T1.[StockPrice]) As Cost
      FROM INV1 T1 LEFT OUTER JOIN OITM T0 ON T1.[ItemCode] = T0.[ItemCode]
      GROUP BY T0.[ItmsGrpCod]
    )T

更新

SELECT T.[ItmsGrpCod],T.Sell,T.Cost,T.GP
FROM
    (
      SELECT T0.[ItmsGrpCod],
             SUM(T1.[Price]) As Sell,
             SUM(T1.[StockPrice]) As Cost,
             SUM(T1.[Price]) / SUM(T1.[StockPrice]) As GP
      FROM INV1 T1 LEFT OUTER JOIN OITM T0 ON T1.[ItemCode] = T0.[ItemCode]
      GROUP BY T0.[ItmsGrpCod]
    )T

Answer 4

就像这个线程中的每个人一样，我也感到困惑和好奇。 我添加了一些测试数据以查看发生了什么。但是我无法复制您的Scenerio。

IF OBJECT_ID(N'TempINV1') > 0
    BEGIN
       DROP TABLE TempINV1
    END
IF OBJECT_ID(N'TempOITM') > 0
    BEGIN
       DROP TABLE TempOITM
    END

CREATE TABLE TempINV1 (ItemCode INT,
                   Price DECIMAL(8, 2),
                   StockPrice DECIMAL(8, 2))
CREATE TABLE TempOITM (ItemCode INT,
                   ItmsGrpCod VARCHAR(10))

INSERT INTO TempINV1
VALUES
(1, '3.21', '2.34'),
(2, '4.32', '3.45'),
(3, '5.43', '4.56')

INSERT INTO TempOITM
VALUES
(1, 'Product1'),
(2, 'Product2'),
(3, 'Product3')

您的两个脚本（以Temp开头的表名）输出相同数量的行项目

SELECT T0.[ItmsGrpCod], T0.Sell, T0.Cost, (T0.Sell / T0.Cost) as "GP"
FROM (
  SELECT T0.[ItmsGrpCod], SUM(T1.[Price]) as "Sell", SUM(T1.[StockPrice]) as "Cost"
  FROM TempINV1 T1 
  LEFT OUTER JOIN TempOITM T0 
  ON T1.[ItemCode] = T0.[ItemCode]
  GROUP BY T0.[ItmsGrpCod]) T0

--Or

SELECT T0.[ItmsGrpCod], T0.Sell, T0.Cost
FROM (
  SELECT T0.[ItmsGrpCod], SUM(T1.[Price]) as "Sell", SUM(T1.[StockPrice]) as "Cost"
  FROM TempINV1 T1 
  LEFT OUTER JOIN TempOITM T0 
  ON T1.[ItemCode] = T0.[ItemCode]
  GROUP BY T0.[ItmsGrpCod]) T0

两个查询的输出相同（返回的数字或行）。

请您在计算机上运行脚本并确认是否正确。 另外，为了帮助我们更好地理解，如果您能向我们提供一些示例日期，那也很好。

补偿除以零：

SELECT T0.ItmsGrpCod,
      T0.Sell,
      T0.Cost,
      T0.Sell / CASE
              WHEN ISNULL(T0.Cost, '0') = 0 THEN T0.Sell
              ELSE T0.Cost
              END AS "GP"
FROM(SELECT T0.ItmsGrpCod,
          SUM(T1.Price)AS "Sell",
          SUM(T1.StockPrice)AS "Cost"
    FROM TempINV1 AS T1
        LEFT OUTER JOIN TempOITM AS T0
        ON T1.ItemCode = T0.ItemCode
    GROUP BY T0.ItmsGrpCod)AS T0