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2003
Springer

Publishing and Querying the Histories of Archived Relational Databases in XML

12 years 3 months ago
Publishing and Querying the Histories of Archived Relational Databases in XML
There is much current interest in publishing and viewing databases as XML documents. The general benefits of this approach follow from the popularity of XML and the tool set available for visualizing and processing information encoded in this universal standard. In this paper, we explore the additional and unique benefits achieved by this approach on temporal database applications. We show that XML views combined with XQuery can provide surprisingly effective solutions to the problem of supporting historical queries on past content of database relations and their evolution. Indeed, using XML, the histories of database relations can be naturally represented by temporally grouped data models. Thus, we identify mappings from relations to XML that are most conducive to modeling and querying database histories, and show that temporal queries that would be very difficult to express in SQL can be easily expressed in standard XQuery. Then, we turn to the problem of supporting efficiently ...
Fusheng Wang, Carlo Zaniolo
Added 05 Jul 2010
Updated 05 Jul 2010
Type Conference
Year 2003
Where WISE
Authors Fusheng Wang, Carlo Zaniolo
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