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(will be inserted by the editor) On the Definition of Functional Dependencies ...



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Abstract: Recently, two di#erent approaches have been proposed for defining functional dependencies in XML (XFDs). The first is based on the notion of a 'tree tuple' which in turn is based on the total unnesting operator used in nested relations. The other approach is based on the notion of a 'closest node'. In general, the two approaches are not comparable but are comparable in the situation where a Document Type Definition (DTD) is present, the DTD is non recursive, the DTD does not contain disjunction ... (Update)

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@misc{ inserted-noname,
  author = "Will Be Inserted",
  title = "Noname manuscript No.",
  url = "citeseer.ist.psu.edu/766559.html" }
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