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Erschienen in:
2012 | OriginalPaper | Buchkapitel
View Selection under Multiple Resource Constraints in a Distributed Context
verfasst von : Imene Mami, Zohra Bellahsene, Remi Coletta
Erschienen in: Database and Expert Systems Applications
Verlag: Springer Berlin Heidelberg
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The use of materialized views in commercial database systems and data warehousing systems is a common technique to improve the query performance. In past research, the view selection issue has essentially been investigated in the centralized context. In this paper, we address the view selection problem in a distributed scenario. We first extend the AND-OR view graph to capture the distributed features. Then, we propose a solution using constraint programming for modeling and solving the view selection problem under multiple resource constraints in a distributed context. Finally, we experimentally show that our approach provides better performance resulting from evaluating the quality of the solutions in terms of cost saving.