Querying XML documents by dynamic shredding

13 years 9 months ago

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With the wide adoption of XML as a standard data representation and exchange format, querying XML documents becomes increasingly important. However, relational database systems constitute a much more mature technology than what is available for native storage of XML. To bridge the gap, one way to manage XML data is to use a commercial relational database system. In this approach, users typically ﬁrst “shred” their documents by isolating what they predict to be meaningful fragments, then store the individual fragments according to some relational schema, and later translate each XML query (e.g., expressed in W3C’s XQuery) to SQL queries expressed against the shredded documents. In this paper, we propose an alternative approach that builds on relational database technology, but shreds XML documents dynamically. This avoids many of the problems in maintaining document order and reassembling compound data from its fragments. We then present an algorithm to translate a signiﬁcant...

Hui Zhang 0003, Frank Wm. Tompa

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