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Databases Illuminated, 4th Edition
book

Databases Illuminated, 4th Edition

by Catherine M. Ricardo, Susan D. Urban, Karen C. Davis
March 2022
Intermediate to advanced content levelIntermediate to advanced
682 pages
22h 58m
English
Jones & Bartlett Learning
Content preview from Databases Illuminated, 4th Edition

12.2 Architectures for a Distributed System

Factors the designer of a DDBS must consider in choosing an architecture include data placement, the type of communications system, data models supported, and types of applications. Data placement alternatives differ in the amount of data replication they permit. Each alternative dictates a different type of system, using different update and query decomposition procedures. Various data models and accompanying manipulation languages are supported in distributed systems. In general, a designer should avoid models that use record-at-a-time retrieval and choose instead those that allow set-level operations because of the number of messages that are required for programmer-navigated retrieval. In considering ...

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Publisher Resources

ISBN: 9781284231595