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我一直在进行查询以获取 MDX 中上一年的值，但无法获得所需的输出。在sql中我会这样做。问题是如何在 MDX 中应用此查询？

select data1, sum(data2) as sumthisyear, sumlastyear from table1 a left outer join ( select data1, sum(data2) 'sumlastyear' from table1 where tableyear = 2017 group by data1 ) b on a.data1 = b.data1 where tableyear= '2018' and datafilter = 'SampleFilter' group by data1, sumlastyear

SSAS 立方体结构图像

我做了一些研究，并做了类似 parallelperiod 的 mdx 函数，但没有给出正确的值，因为数据是根据 2018 年过滤的。

这是我的 MDX 查询

CREATE MEMBER CURRENTCUBE.Measures.[SPLY Registered Sales] AS
    iif( [DimProdDate].[Dates].CurrentMember Is
         [DimProdDate].[Dates].[All].LastChild,

         ( PARALLELPERIOD( [DimProdDate].[Dates].[Calendar Year],
                           1,
                           Tail( NonEmpty( [DimProdDate].[Dates].[Full Date].MEMBERS,
                                           [MEASURES].[Registered Sales]),
                                 1
                               ).Item(0)
                         ),
           [MEASURES].[Registered Sales] ),

         ( PARALLELPERIOD( [DimProdDate].[Dates].[Calendar Year],
                           1,
                           [DimProdDate].[Dates].CurrentMember 
                         ), 
           [MEASURES].[Registered Sales] )
      );

任何帮助将不胜感激。

谢谢！

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