Question

  SELECT YEAR(aum.AUM_Timeperiod) as Year,
         DATEPART(q, aum.AUM_TimePeriod) AS Quarter,
         SUM(cast(aum.AUM_AssetValue AS money)) as total_AssetValue
    FROM AssetUnderManagement as aum, 
         LineOfBusiness
   where aum.LOB_ID = LineOfBusiness.LOB_ID
     and LineOfBusiness.LOB_Name = 'Asset Management' 
GROUP BY YEAR(aum.AUM_Timeperiod), DATEPART(q, aum.AUM_TimePeriod);

上述查询返回每季度的值。

我的问题是，如果我希望将该季度上个月的Total_AssetValue分配到该季度，我该如何更改它。

对于eaxmple Quater 3，total_AssetValue为sum（100 + 200 + 300）。但我希望quater 3的值为300，这是该季度中的最后一个月值

Answer 1

怎么样：

SELECT
  Year,
  Quarter,
  (
    SELECT SUM(CAST(AUM_AssetValue AS MONEY)) 
      FROM AssetUnderManagement
     WHERE YEAR(AUM_Timeperiod) = i.Year
           AND MONTH(AUM_TimePeriod) = i.LastMonthInQuarter
  ) AS total_AssetValue
FROM
  (
  SELECT
    YEAR(aum.AUM_Timeperiod)        AS Year,
    DATEPART(q, aum.AUM_TimePeriod) AS Quarter,
    MAX(MONTH(aum.AUM_TimePeriod))  AS LastMonthInQuarter
  FROM
    AssetUnderManagement as aum, LineOfBusiness
  WHERE
    aum.LOB_ID = LineOfBusiness.LOB_ID
    AND LineOfBusiness.LOB_Name = 'Asset Management' 
  GROUP BY
    YEAR(aum.AUM_Timeperiod),
    DATEPART(q, aum.AUM_TimePeriod)
  ) AS i

Answer 2

这是一个使用公用表表达式的版本：

WITH MyData AS
    (SELECT YEAR(aum.AUM_Timeperiod) AS [Year], DATEPART(q, aum.AUM_TimePeriod) AS [Quarter],
        DATEPART(M, aum.AUM_TimePeriod) AS [Month],
        DATEPART(M, aum.AUM_TimePeriod) - (DATEPART(q, aum.AUM_TimePeriod) - 1) * 3 AS [MonthInQtr],
        SUM(CAST(aum.AUM_AssetValue AS MONEY)) AS [total_AssetValue]
    FROM AssetUnderManagement AS aum, LineOfBusiness
    WHERE aum.LOB_ID = LineOfBusiness.LOB_ID
        AND LineOfBusiness.LOB_Name = 'Asset Management'
    GROUP BY YEAR(aum.AUM_Timeperiod), DATEPART(q, aum.AUM_TimePeriod),
        DATEPART(M, aum.AUM_TimePeriod), DATEPART(M, aum.AUM_TimePeriod) -
        (DATEPART(q, aum.AUM_TimePeriod) - 1) * 3
    )

SELECT [Year], [Quarter]
FROM MyData
WHERE MonthInQtr = 3
ORDER BY [Year], [Quarter], [total_AssetValue]
;

您可以使用上面的相同CTE并使用以下查询来获取原始结果

SELECT [Year], [Quarter], SUM([total_AssetValue])
FROM MyData
GROUP BY [Year], [Quarter]
ORDER BY [Year], [Quarter]
;

如何查询每个季度最后一个月的值？

2 个答案: