Hey all I'm hoping you can help me with an MDX problem I am having. I will use adventure works for this example. Basically I have been asked to create a calculated measure in the cube that will display a cumulative or rolling sum of another measure. I have found quite few solutions but all of them use a specific dimension such as date with YTD in the SUM but I was hoping to create a measure that was not dependent on any specific dimension.The simplest MDX I could find is in the example below. While this works in MDX on the fly, I can't use it in Excel in any other dimension besides the product line. I was hoping there was a way to make it dynamic so that it would provide the cumulative sum no matter what dimensions are dropped on.I was thinking that i would have to somehow use the Descendants function with a specified Axis but my knowledge of MDX is so limited that I am probably way off. Any ideas?[code="sql"]with member [Measures].[Running total] as Sum(null : [Product].[Product Line].CurrentMember, [Measures].[Internet Sales Amount]), Format = "Currency"select {[Measures].[Internet Sales Amount],[Measures].[Running total]} on 0, [Product].[Product Line].[Product Line].Members on 1from [Adventure Works][/code]
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