Inclusion Dependencies in XML: Extending Relational Semantics
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Proceedings of the 20th International Conference on Database and Expert Systems Applications (DEXA 2009), Linz, Austria
In this article we define a new type of integrity constraint in XML, called an XML inclusion constraint (XIND), and show that it extends the semantics of a relational inclusion dependency. This property is important in areas such as XML publishing and data-centric XML, and is one that is not possessed by other proposals for XML inclusion constraints.We also investigate the implication and consistency problems for XINDs in complete XML documents, a class of XML documents that generalizes the notion of a complete relation, and present an axiom system that we show to be sound and complete.
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