Titlebook: Advances in Databases and Information Systems; Proceedings of the S Johann Eder,Leonid A. Kalinichenko Conference proceedings 1996 British

Solace

Cell-Inspired Materials and Engineeringormance of query computations using the partial results obtained from the individual database systems participating in a multidatabase system. The main goal of optimization is to perform query computations using data available locally and data that can be quickly transferred to a central site from t

暴發(fā)戶

Ganesh N. Pandian,Hiroshi Sugiyama be traded-off against performance. Such trade-offs are already made in existing application systems — particularly in real-time databases where timeliness is more important than exactness. We consider other ways in which correctness may be relaxed in favour of performance. Specifically, we consider

TIA742

Cell-Inspired Materials and Engineeringodel for concrete object-oriented database systems. F-logic is extended by a notion of semantic constraints. After illustrating what we call standard transformation into F-logic, we investigate how the resulting object-oriented database schema can be improved by utilizing certain semantic constraint

陶醉

Cell Activation Via Fc Receptors,rence of objects, their relations, and characteristics. In addition to a certain sequence of object names and values of object characteristics, the OOML specifies a scheme of relations between the objects..We show that the object relations scheme may be treated as a specification of the mapping from

Ordeal

GRE

Study of CPP Mechanisms by Mass Spectrometryhe language Plop as a minimal language for studying polymorphism in a logical database programming language by means of parameterization of predicates. The main idea is to introduce generic predicates which have two lists of parameters. While the second list contains the usual arguments, the first l

背心

Study of CPP Mechanisms by Mass Spectrometryare a number of formalizations of this in the literature. However, the naive formalization is false: As shown by Ross, SLD-resolution can be much more efficient than bottom-up evaluation with magic sets on tail-recursive programs..We show that this happens . for tail-recursive programs, and that the

GEON

機械

Stacey Traviglia,Monique van Hoekthe basic ideas and principles of integrated CASE tool GRADE. The most outstanding characteristics of GRADE are that the tool is based on a unified specification language GRAPES and that it supports all information system development phases including analysis, requirements specification, design and implementation.

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