University of Hertfordshire

By the same authors

Integrated queries over a heterogeneously distributed scientific database using OGSA-DQP

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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Original languageEnglish
Title of host publicationProcs 2011 6th IEEE Joint Int Information Technology and Artificial Intelligence Conf
Subtitle of host publicationITAIC
Pages421 - 425
ISBN (Print) 978-1-4244-8622-9
Publication statusPublished - 2011


In this paper we experiment with using the UNION ALL operator to make data integration queries over a version of the SDSS scientific Database, distributed using OGSA-DQP. The paper starts with background information on the SDSS database and the eScience technologies OGSA-DAI and OGSA-DQP. It recaps how we distributes a SDSS database across three sites. It then examines the running of several OGSA-DQP queries against the database. We discuss our experiences of using UNION ALL for integrating data results from data service resources based on heterogeneous underlying database management systems.

ID: 486777