Question

我有以下查询为学生生成经济援助奖励表。我们想做一个Pivot，因为我们想要同时展示多个学期的辅助。

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

我们得到的结果如下所示，而不是在同一行上列出每学期的金额。尽管描述标题相同，但每个学期的奖项都有自己的一行。有谁知道问题来自哪里？

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

如果没有在pivot之前查看表格中的数据，我猜测这是因为查询中包含fa.TextTerm。

这会给出导致多行的TextTerm的明确值。

这似乎是问题的明显原因，因为您没有在最终的SELECT列表中使用该列。我建议将您的查询更改为：

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

数据透视表包含额外的行

1 个答案: