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Erschienen in:
2005 | OriginalPaper | Buchkapitel
Schemas and Queries over P2P
verfasst von : Pedro Furtado
Erschienen in: Database and Expert Systems Applications
Verlag: Springer Berlin Heidelberg
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Query processing in overlay networks has been receiving significant attention from researchers recently. Such systems offer flexibility and de-centralization. The challenge is to add representation and query capacity in such a networked environment, resulting in a peer-to-peer data management system. The issue of how schemas can be incorporated and queried in p2p while abiding to the de-centralized and flexible philosophy has not been properly handled. In this paper we analyze constructs and strategies to build database-like schemas and process simple queries over those schemas on P2P. For this we describe schema spaces, attribute value locators and data shipment issues. We also engage in experimental work to analyze our proposals using a network simulator to test the strategies with different networked scenarios.