Titlebook: Advances in Database Technology EDBT ‘96; 5th International Co Peter Apers,Mokrane Bouzeghoub,Georges Gardarin Conference proceedings 1996

血統(tǒng)

Hematological Malignancies and Fertility,r engineering environments and tools and to solve integration problems in environments. However, there is hardly any evidence or experience to what extent these goals are actually met. This paper summarizes experience gained in several major experiments in which different classes of tools in CASE en

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meritorious

Cell Biology of Extracellular Matrixions, without accessing any of the underlying databases. We derive tight conditions under which several types of select-project-join are self-maintainable upon insertions, deletions and updates. Self-Maintainability is a desirable property for efficiently maintaining large views in applications wher

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Vulnerary

Caroline M. Alexander,Zena Werbock queries where a query block may be a view definition containing aggregates or a correlated nested subquery. Beyond transformations that propagate predicates across blocks, the problem of optimizing such queries has not been addressed adequately. In this paper, we show how such queries can be opt

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Caroline M. Alexander,Zena Werbelational to object-oriented—the need for such efficiency has not diminished, and the general problem has increased in complexity..In this paper, we present a heuristics-based, extensible algorithm for the translation of object-oriented query expressions in a variant of OSQL to an algebra extended w

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SAGE

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carbohydrate