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XML SUB-DOCUMENT VERSIONING METHOD IN XML DATABASES USING RECORD STORAGES

  • US 20070043686A1
  • Filed: 08/22/2005
  • Published: 02/22/2007
  • Est. Priority Date: 08/22/2005
  • Status: Active Grant
First Claim
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1. A computer-based method of versioning records of XML sub-documents in a database, said method comprising:

  • representing node identifiers and version numbers in two -dimensional space along with record boundaries;

    adding virtual record boundaries to said record boundaries and dividing said dimensional space into a series of rectangles, said virtual record boundaries added to support multiple versions of said sub-documents; and

    building a search tree index comprising index points corresponding to a bottom corner point of each of said rectangles, each of said index points comprising a triple of node identifier, version number and record identifier.

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