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tessahurr's avatar
tessahurr
Icon for Microsoft Employee rankMicrosoft Employee
5 years ago

Share your thoughts on DirectQuery for Power BI datasets and Azure Analysis Services (preview)

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General Comment
nicg's avatar
nicg
Icon for Advocate II rankAdvocate II
5 years ago

I have the same question as Mariusz, and I think it gets at architectural issues that Power BI has with conformed dimensions. It's never been clear to me the best way to handle them as there is no concept of shared dimensions like there used to be in SSAS MD.

 

If there's two models, both with a copy of the same Product dimension and those two models are "composited" together, you're going to have two Product dimensions. How do you get the two models to work together across this dimension? Can you remove one? Can you link them together somehow? It seems to me that each model may contain its own measures with references to its own Product dimension. How do we keep these working?

Anonymous's avatar
Anonymous
Not applicable
5 years ago

Well, is this realy related to "Composite"? Same question with "Import"...
The usual way is to have just one dim with several relations and to build measures with "USERALTIONSHIP".

  • nicg's avatar
    nicg
    Icon for Advocate II rankAdvocate II
    5 years ago

    Hi Oliver,

     

    I'm not sure I follow you. I'm talking about multiple models, not multiple tables within a single model.

     

    Model A has a star schema that includes Product dimension.
    Model B has a star schema that includes Product dimension.

    Model C is a composite of A and B. C now contains Product(A) and Product(B). What's the right way of handling this situation?