SQL Server：以其他条件开头

Question

我有一个运行良好的查询：该查询用于查找最近3个月和去年的总和和平均值。一切正常，直到我收到一个新请求，以AwardCode将查询细分为更多详细信息。

那怎么包括呢？

我的意思是本节

SUM(1.0 * InvolTerm) OVER (ORDER BY Calendar_Date ASC 
                           ROWS BETWEEN 2 PRECEDING AND CURRENT ROW) AS  InvolMov3Mth,

我想根据AwardCode查找最近3个月。

正在运行的原始查询是

SELECT 
    Calendar_Date, Mth,  NoOfEmp, MaleCount, FemaleCount,
    SUM(1.0*InvolTerm) OVER (ORDER BY Calendar_Date ASC 
                             ROWS BETWEEN 2 PRECEDING AND CURRENT ROW) AS  InvolMov3Mth,
    SUM(1.0*TotalTerm) OVER (ORDER BY Calendar_Date ASC 
                             ROWS BETWEEN 11 PRECEDING AND CURRENT ROW) AS TermSum12Mth 
FROM @X

结果是

但是现在我需要添加另一个组AwardCode

SELECT 
    Mth,  AwardCode, NoOfEmp, MaleCount, FemaleCount,
    SUM(1.0 * InvolTerm) OVER (ORDER BY Calendar_Date ASC 
                               ROWS BETWEEN 2 PRECEDING AND CURRENT ROW) AS  InvolMov3Mth,
    SUM(1.0 * TotalTerm) OVER (ORDER BY Calendar_Date ASC 
                               ROWS BETWEEN 11 PRECEDING AND CURRENT ROW) AS TermSum12Mth 
FROM @X

结果将是这样

您会注意到整个期间的InvolMov3Mth和TermSum12Mth的总和与上面的查询不匹配

Answer 1

我想我找到了问题的答案。

我在ORDER BY之前使用了PARTITION BY AwardCode

似乎正在工作。

SUM(1.0*TotalTerm) OVER (PARTITION BY AwardCode ORDER BY Calendar_Date ASC 
                        ROWS BETWEEN 11 PRECEDING AND CURRENT ROW) AS TermSum12Mth,

Answer 2

是的。 “分区依据”将使其适合您的要求