Abstract
The concept of functional dependency plays a foundational role in relational databases where it is used in integrity enforcement and database design. Similarly, functional dependencies in XML (XFDs) will play a centric role in providing richer data semantic information and normalizing XML data. In this paper, we present a new approach for defining 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. The satisfaction of XFDs in an XML document is defined in terms of the value equality. The checking algorithm for our proposal is given. Finally, we discuss the advantages of our XFDs over other previous work.
This research is supported by Beijing Municipal Natural Science Foundation (4082003).
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Chen, H., Liao, H., Gao, Z. (2010). On Defining Functional Dependencies in XML Schema. In: Zhang, Y., Cuzzocrea, A., Ma, J., Chung, Ki., Arslan, T., Song, X. (eds) Database Theory and Application, Bio-Science and Bio-Technology. BSBT DTA 2010 2010. Communications in Computer and Information Science, vol 118. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-17622-7_13
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DOI: https://doi.org/10.1007/978-3-642-17622-7_13
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