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System and method for processing queries for combined hierarchical dimensions

  • US 7,716,233 B2
  • Filed: 05/23/2007
  • Issued: 05/11/2010
  • Est. Priority Date: 05/23/2007
  • Status: Active Grant
First Claim
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1. A method of querying a plurality of data sources, the method comprising:

  • receiving an abstract query for querying the plurality of data sources, wherein the abstract query specifies a first data source with a first level and a second data source with a second level thereby defining a multiple source hierarchical dimension;

    generating a first data source specific query specifying the first level of the first data source;

    executing the first data source specific query against the first data source to produce results for the first level, wherein the results for the first level include a value for the first level;

    generating a context expression for the second data source, wherein the context expression relates the first level to the second level;

    generating a second data source specific query specifying the second level and including the context expression for the second data source;

    executing the second data source specific query against the second data source to produce results for the second level; and

    returning the results for the first level and the results for the second level.

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