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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

12.4 Data Placement

One of the most important decisions a distributed database designer must make is data placement. Proper data placement is a crucial factor in determining the success of a DDBS. There are four basic alternatives, namely, centralized, replicated, partitioned, and hybrid. Some of these require additional analysis to fine-tune the placement of data. In deciding among data placement alternatives, the following factors need to be considered:

  • Locality of data reference. The data should be placed at the site where it is used most often. The designer studies the applications to identify the sites where they are performed and attempts to place the data in such a way that most accesses are local.

  • Reliability of the data. By storing ...

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Publisher Resources

ISBN: 9781284231595