Method and system for federated querying of data sources
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United States of America Patent
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Apr 2, 2013
Grant Date -
Oct 20, 2005
app pub date -
Dec 29, 2004
filing date -
May 25, 2001
priority date (Note) -
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Abstract
A system for managing and querying a plurality of data sources, including an interface to a plurality of inter-related data sources of diverse types, each of the plurality of data sources having a schema that describes its data structure, a schema generator communicating with the interface, for generating a federated schema that describes the structures of the plurality of data sources and their inter-relationships, and for modifying the federated schema over time as the plurality of data sources undergo changes, and a query generator communicating with the schema generator, for generating a query for the federated schema. A method and a computer-readable storage medium are also described.
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