Titlebook: Database: Enterprise, Skills and Innovation; 22nd British Nationa Mike Jackson,David Nelson,Sue Stirk Conference proceedings 2005 Springer-

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geometrician

CLASP

Copyright, Property and the Social Contractne of the several versions, with varying syntax and semantics, of the Entity-Relationship (ER) model. In the research community as well as in industry, it is common knowledge that the temporal aspects of the mini-world are important, but are also difficult to capture using the ER model. Not surprisi

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Moralism, Moral Individualism and Testimonyses the problem of redundancy of object retrieval in a multidatabase setting. We present the materialisation rules we have used for supporting data integration in a heterogeneous database environment. The materialisation rules are capable of directing the global query processor to combine data from

Torrid

Torrid

Wernickes-area

Suspect Notions and the Concept Police,nding views may be outdated. Hence, the maintenance of DW views is crucial for the currency of information. In this paper, we propose a novel method to efficiently self-maintain DW views that contain select-project-joins over relations modelled in a star schema. Specifically, our method avoids compu

以煙熏消毒

ACME

Chris M. Roelfsema,Stuart R. Phinn literature, sampling has been proposed to evaluate queries approximately by using only a subset of the original data. Unfortunately, most of these methods consider either only certain problems arising due to the use of samples in databases (e.g. data skew) or only join operations involving multiple