The coDB Robust Peer-to-Peer Database System

Franconi, Enrico and Kuper, Gabriel and Lopatenko, Andrei and Zaihrayeu, Ilya (2004) The coDB Robust Peer-to-Peer Database System. UNSPECIFIED. (In Press)

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    Abstract

    In this paper we give an overview of the coDB semantically well-founded P2P DB system. A network of databases, possibly with different schemas, are interconnected by means of GLAV coordination rules, which are inclusions of conjunctive queries, with possibly existential variables in the head; coordination rules may be cyclic. Each node can be queried in its schema for data, which the node can fetch from its neighbours, if a coordination rule is involved. Correctness and termination of query answering is guaranteed also in the case of runtime change in the topology of the network.

    Item Type: Departmental Technical Report
    Department or Research center: Information Engineering and Computer Science
    Subjects: Q Science > QA Mathematics > QA076 Computer software
    Additional Information: Accepted to the Second Workshop on Semantics in Peer-to-Peer and Grid Computing at the Thirteenth International World Wide Web Conference 18 May 2004, New York, USA
    Report Number: DIT-04-028
    Repository staff approval on: 27 Apr 2004

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