Method of servicing query statements from a client machine using a database management system (DBMS) employing a relational datastore and a multi-dimensional database (MDDB)
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United States of America Patent
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Nov 27, 2012
Grant Date -
Apr 22, 2010
app pub date -
Dec 11, 2009
filing date -
Feb 28, 2000
priority date (Note) -
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Abstract
A method of serving query statements from one or more client machines using a database management system (DBMS) employing a relational data store and a multi-dimensional database (MDDB). A query interface is adapted to receive query statements from the client machines, and generate one or more query requests. A query handling mechanism (i) receives each request from the query interface, (ii) extracts a set of dimensions associated with the request, (iii) uses the dimensions to retrieve aggregated fact data from the MDDB, and (iv) forwards retrieved aggregated fact data to the query processing mechanism for subsequent processing. When the query processing mechanism determines that servicing of one or more query requests require data stored in the relational tables, then the query handling mechanism automatically routes the requests to the relational data tables, so that data can be accessed from the relational tables and forwarded to the query processing mechanism for use in servicing the requests, in a manner transparent to the client machine.
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