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

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1 Author(s)
Xiang, H.X. ; Comput. Sci., Univ. of Hertfordshire, Hatfield, UK

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.

Published in:

Information Technology and Artificial Intelligence Conference (ITAIC), 2011 6th IEEE Joint International  (Volume:1 )

Date of Conference:

20-22 Aug. 2011