MDX 计算速度 - CurrentMember?

MDX Calculation speed - CurrentMember?

我仍在努力掌握 MDX,我正在寻求帮助。这是我的 MDX 查询:

 CREATE MEMBER CURRENTCUBE.[Measures].[Fake]
   AS 
   IIF(
    (
      (
        [Sales Data].[Ship-to No].CurrentMember
       ,[Sales Data].[Price Type].&[Core]
       ,[Measures].[Sales - Local Currency]
      ) 
    / (
        [Sales Data].[Ship-to No].CurrentMember,
        [Sales Data].[Price Type].[(All)].[ALL],
        [Measures].[Sales - Local Currency]
      )
    ) > 0.9 
  ,1 
  ,NULL
  ), 
VISIBLE = 1; 

CREATE MEMBER CURRENTCUBE.[Measures].[Test Calc]
  AS 
  SUM(
     Descendants(
       [Sales Data].[Ship-to No].CurrentMember
      ,[Sales Data].[Ship-to No].[Ship-to No]
     ),
    [Measures].[Fake]
  ), 
VISIBLE = 1; 

SalesData 是事实 table,基本计算是计算销售额超过价格类型 "Core".

90% 的客户数量

查询目前需要大约 5 秒才能完成,但根据 http://sqlblog.com/blogs/mosha/archive/2008/07/29/product-volatility-optimizing-mdx-with-mdx-studio.aspx

,我认为如果我不使用 CurrentMember 会更快

但是我不知道从哪里开始改变这个,谁能帮我提高效率?

如果从第一个度量中删除当前成员,会有什么不同吗?

 CREATE MEMBER CURRENTCUBE.[Measures].[Fake]
   AS 
   IIF(
    (
      (
        [Sales Data].[Price Type].&[Core]
       ,[Measures].[Sales - Local Currency]
      ) 
    / (
        [Sales Data].[Price Type].[(All)].[ALL],
        [Measures].[Sales - Local Currency]
      )
    ) > 0.9 
  ,1 
  ,NULL
  ), 
VISIBLE = 1; 

关于您在第二个度量中使用的当前成员,也许 EXISTING 就足够了:

CREATE MEMBER CURRENTCUBE.[Measures].[Test Calc]
  AS 
  SUM(
    EXISTING [Sales Data].[Ship-to No].[Ship-to No].MEMBERS
    ,[Measures].[Fake]
  ), 
VISIBLE = 1;