While XML is emerging as the universal format for publishing and exchanging data on the Web, most business data is still stored and maintained in relational DBMSs. To enable eBusiness database applications, Web access to the legacy data managed by DBMSs needs to be provided. In this paper, we introduce a virtual XML database engine VXE-R which allows users query a relational database via XML as if they were accessing XML documents. Algorithms for schema transformation and query translation in VXE-R are presented.
Lecture notes in computer science: Proceedings of 'Database and XML technologies', the 1st International XML Database Symposium (XSym 2003), Berlin, Germany, 08 September 2003 / Zohra Bellahsene, Akmal B. Chaudhri, Erhard Rahm, Michael Rys and Rainer Unland (eds.),
Vol. 2824, pp. 37-51