Question

我正在SSMS 2014中进行多维数据集查询，我的查询返回所有列，甚至包括0和（null）值的列。我理解这是因为日期和客户名称不为空。

使用下面的MDX查询，如何删除包含（null）值的任何列，或者登录时的计数为零？

WITH 
  MEMBER [2MonthsPriorUniqueUsers] AS Sum({[Date].[Calendar Year Month].CurrentMember.Lag(2)},[Measures].[App Unique Users Loggedin]) 
  MEMBER [1MonthPriorUniqueUsers] AS Sum({[Date].[Calendar Year Month].CurrentMember.Lag(1)},[Measures].[App Unique Users Loggedin]) 
  MEMBER [1MonthPriorTotalAppLogins] AS Sum({[Date].[Calendar Year Month].CurrentMember.Lag(1)},[Measures].[App Logins])
  MEMBER [Measures].[PercentUniqueIncreaseMoM] AS ([1MonthPriorUniqueUsers] / [2MonthsPriorUniqueUsers])-1,FORMAT_STRING = "Percent" 
SELECT 
   NON EMPTY 
     {[Date].[Calendar Year Month].[201705]}
   *  [Project].[Client Name].members ON 0,
  NON EMPTY 
    {
      [Measures].[PercentUniqueIncreaseMoM]
     ,([1MonthPriorUniqueUsers])
     ,[2MonthsPriorUniqueUsers]
     ,[1MonthPriorTotalAppLogins]
    } ON 1
FROM [MyCube]

提前致谢！

Answer 1

您想使用NonEmpty()或Filter()功能。例如，如果您需要根据[Measures]排除空记录。[App Logins]：

WITH 
  MEMBER [2MonthsPriorUniqueUsers] AS Sum({[Date].[Calendar Year Month].CurrentMember.Lag(2)},[Measures].[App Unique Users Loggedin]) 
  MEMBER [1MonthPriorUniqueUsers] AS Sum({[Date].[Calendar Year Month].CurrentMember.Lag(1)},[Measures].[App Unique Users Loggedin]) 
  MEMBER [1MonthPriorTotalAppLogins] AS Sum({[Date].[Calendar Year Month].CurrentMember.Lag(1)},[Measures].[App Logins])
  MEMBER [Measures].[PercentUniqueIncreaseMoM] AS ([1MonthPriorUniqueUsers] / [2MonthsPriorUniqueUsers])-1,FORMAT_STRING = "Percent" 
SELECT 
   NON EMPTY 
     {[Date].[Calendar Year Month].[201705]}
   *  Filter([Project].[Client Name].members,[Measures].[App Logins]>0) ON 0,
  NON EMPTY 
    {
      [Measures].[PercentUniqueIncreaseMoM]
     ,([1MonthPriorUniqueUsers])
     ,[2MonthsPriorUniqueUsers]
     ,[1MonthPriorTotalAppLogins]
    } ON 1
FROM [MyCube]

MDX - 使用（null）或零值排除列

1 个答案: