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JIDM
2010

Processing Queries over Distributed XML Databases

9 years 9 months ago
Processing Queries over Distributed XML Databases
The increasing volume of data stored as XML documents makes fragmentation techniques an alternative to the performance issues in query processing. Fragmented databases are feasible only if there is a transparent way to query the distributed database. Fragments allow for intra-query parallel processing and data reduction. This paper presents our methodology for XQuery query processing over distributed XML databases. The methodology comprises the steps of query decomposition, data localization, and global optimization. This methodology can be used in an XML database or in a system that publishes homogeneous views of semi-autonomous databases. An implementation has been done and experimental results can achieve performance improvements of up to 95% when compared to the centralized environment. Categories and Subject Descriptors: H. Information Systems [H.2. Database Management]: H.2.4 Systems-Distributed Databases
Guilherme Figueiredo, Vanessa P. Braganholo, Marta
Added 19 May 2011
Updated 19 May 2011
Type Journal
Year 2010
Where JIDM
Authors Guilherme Figueiredo, Vanessa P. Braganholo, Marta Mattoso
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