System, method, and computer program product for querying XML documents using a relational database system
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United States of America Patent
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N/A
Issued Date -
Mar 4, 2004
app pub date -
Aug 30, 2002
filing date -
Aug 30, 2002
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A technique enabling querying of XML documents in a relational database system via a reconstruction view allowing XML documents to be queried as though XML views of relational data. A single query processor can be used with all relational schema generation methods (whether or not using XML schema information) to seamlessly query across XML documents, relational data, and XML views of relational data; no special purpose query processor is required. The technique creates an XML document view, creates relational tables for storing XML documents using relational schema, shreds the XML documents and stores the XML documents as rows in the relational tables according to the relational schema, generates a reconstruction view over the relational tables to define how the shredded documents are to be virtually reconstructed, and processes queries over the stored XML documents as queries over the reconstruction view.
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