數據透視表包含額外的行

Question

我有以下查詢來爲學生生成財務援助獎勵表。我們希望做一個樞軸，因爲我們想同時爲多個學期提供援助。

select pt.award as Award, pt.[1] as Fall, pt.[2] as Spring, pt.[3] as Summer    
--into #awardTemp 
    from (select fa.Description as award, fa.OriginalAmount, fa.TextTerm, 
      ROW_NUMBER() OVER(PARTITION BY fa.description 
      order by fa.textterm) AS M 
     from CAMS_Enterprise.dbo.cams_FinancialAward_view as fa 
     where fa.Code1ID = 0 
     and fa.StudentAccepted is null 
     and fa.studentuid = @studentuid) as AT 
    pivot (max(at.originalamount) for at.m in ([1],[2],[3])) as pt 

我們沒有在同一行上列出每學期的金額，我們得到的結果如下所示。即使說明標題相同，每個學期的獎項也都有自己的一排。任何人都知道問題來自哪裏？

Academic Scholarship    5000.00 NULL NULL 
Academic Scholarship    NULL 5000.00 NULL 
Federal Subsidized Stafford Loan 1750.00 NULL NULL 
Federal Subsidized Stafford Loan NULL 1750.00 NULL 
Federal Unsubsidized Stafford Loan 1000.00 NULL NULL 
Federal Unsubsidized Stafford Loan NULL 1000.00 NULL 

Answer 1

沒有pivot之前，從表中看到您的資料，我會猜想，這是由於在查詢中包含的fa.TextTerm。

這給出了造成多行的不同值TextTerm。

這似乎是問題的明顯原因，因爲您在最終的SELECT列表中未使用該列。我建議將您的查詢改爲：

select pt.award as Award, pt.[1] as Fall, pt.[2] as Spring, pt.[3] as Summer    
--into #awardTemp 
from 
(
    select fa.Description as award, 
     fa.OriginalAmount, 
     ROW_NUMBER() OVER(PARTITION BY fa.description order by fa.textterm) AS M 
    from CAMS_Enterprise.dbo.cams_FinancialAward_view as fa 
    where fa.Code1ID = 0 
     and fa.StudentAccepted is null 
     and fa.studentuid = @studentuid 
) as AT 
pivot 
(
    max(at.originalamount) 
    for at.m in ([1],[2],[3]) 
) as pt