Functional dependencies for XML

Authors:
Haitao Chen;Husheng Liao;Zengqi Gao
Affiliations:
College of Computer Sciences, Beijing University of Technology, Beijing, China;College of Computer Sciences, Beijing University of Technology, Beijing, China;College of Computer Sciences, Beijing University of Technology, Beijing, China
Venue:
WAIM'10 Proceedings of the 2010 international conference on Web-age information management
Year:
2010

Citing 9
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Abstract

In this paper, we present a new approach for defining functional dependencies for XML (XFDs) on XML Schema. While showing how to extend XML Schema, we analyze the expressive power of our XFDs. We focus on supporting complex value (e.g. list, set) in our proposal. A novel concept match tree is introduced for judging the value equality of complex type elements. The satisfaction of XFDs in an XML document is defined in terms of the value equality. We also discuss the advantages of our XFDs over other previous work.