Titlebook: Database Theory - ICDT‘99; 7th International Co Catriel Beeri,Peter Buneman Conference proceedings 1999 Springer-Verlag Berlin Heidelberg 1

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Pharmacotherapy of Urgency Incontinencefectiveness. In order to empirically evaluate these indexes, it is helpful to have methodologies for generating random queries for performance testing. In this paper we propose a domain-independent approach to the generation of random queries: choose randomly among all logically distinct queries. We

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,Robert Sprague’s “Adequate Defense”,ear conceptual framework in which to reason about transactional correctness in such an environment. This paper is a first attempt at developing such framework. Unlike most existing systems, where concurrent executions are controlled by a centralized scheduler, we will assume that each element in the

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Variation Séculaire des Longitudess of updating and querying such databases. Specifically, the update problem is to determine when the location of a moving object in the database (namely its database location) should be updated. We answer this question by proposing an information cost model that captures uncertainty, deviation, and

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