Querying markup language data sources using a relational...

Details Querying markup language data sources using a relational... Querying markup language data sources using a relational...

2011-08-16

2011-08-16

Woo, Isaac M (Department: 2155)

Data processing: database and file management or data structures

Database design

Data structure types

C707S802000, C707S822000, C707S828000

Reexamination Certificate

active

08001151

ABSTRACT:
An XML wrapper queries an XML document in an on-the-fly manner so that only parent nodes in the document that satisfy the query are extracted and then unnested. The parent nodes and associated descendent nodes are located using XPath expressions contained as options in data definition language (DDL) statements. The parent nodes satisfying the query and associated descendent nodes are extracted and stored outside of a database according to a relational schema. The wrapper facilitates applications that use convention SQL queries and views to operate on that information stored according to the relational schema. The wrapper also responds to query optimizer requests for costs associated with queries against external data sources associated with the wrapper.

REFERENCES:
patent: 5564113 (1996-10-01), Bergen et al.
patent: 6076092 (2000-06-01), Goldberg et al.
patent: 6598015 (2003-07-01), Peterson et al.
patent: 6704723 (2004-03-01), Alavi
patent: 6785673 (2004-08-01), Fernandez et al.
patent: 6799184 (2004-09-01), Bhatt et al.
patent: 6901410 (2005-05-01), Marron et al.
patent: 2001/0047372 (2001-11-01), Gorelik et al.
patent: 2002/0019824 (2002-02-01), Holder et al.
patent: 2002/0116371 (2002-08-01), Dodds et al.
patent: 2002/0133497 (2002-09-01), Draper et al.
patent: WO 00/56033 (2000-09-01), None
patent: WO 00/75849 (2000-12-01), None
Lacroix, Scientific Data Integration: Wrapping Textual Documents with a Database View Mechanism and an XML Engine, IEEE, 2000, pp. 71-76.
Lacroix, Building Portals for E-Biology, IEEE, 2001, pp. 41-49.
Gardarin, G., et al., XML-based Components for Federating Multiple Heterogeneous Data Sources, Nov. 1999, pp. 506-519.
Lin et al, Object-Oriented Mediator Queries to XML Data, IEEE, 2000, pp. 39-46.
Sahuguet, A., et al., Building Light-weight Wrappers for Legacy Web Data-Sources Using W4F, Sep. 1999, pp. 738-741.
XML Path Language (XPath), http:/www.w3.org/TR/1999/REC-xpath-19991116, Version 1.0, W3C Recommendation Nov. 16, 1999, pp. 1-40.
Bourret, R., Xpath in Five Paragraphs, http:/www.rpbourrett.com/xml/Xpathin5.htm, Nov. 2001.
Cheng et al., IBM DB2 XML Extender—An end-to-end solution for storing and retrieving XML documents, IEEE, Feb. 2000, pp. 1-9.
NeoCore Resource Document, An Xpath Primer, Release 1.1, Oct. 12, 2001, pp. 1-38.

Affiliated with

Also associated with

Rating

Querying markup language data sources using a relational... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Querying markup language data sources using a relational..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Querying markup language data sources using a relational... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2772381