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author's profile photo Former Member
Former Member

InfoCube Unions in MDX


We are looking to use MDX queries to make iView reports which combine data from different InfoCubes (provided that we don’t have a BI MultiProvider available and we do not want to develop one in BI). For example one cube contains “number of items per month” another cubes displays “total cost of items per month” (the dimension is the top aggregate level – one intersection per month, so the cubes have a one to one relationship, and a common time characteristic). The cubes are not technically related in any way. For various reasons we can not make any changes to BI/BW (i.e. custom cubes, multi-providers etc). We believe the optimum solution would be to use MDX query editing, as this keeps the manipulation contained, encapsulated and consistent inside an iView. Any suggested code or other ideas greatly appreciated (unusual and left field is fine!).



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  • author's profile photo Former Member
    Former Member
    Posted on Sep 07, 2007 at 08:52 PM

    Good idea, why not?

    Only concern that I would have is the performance. Have you tested it? I know at least that UNION-statements on relational tables are not so performant. But I guess for BI that depends on the aggregates behind the cubes and how many records are returned per cube.

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