Denormalization strategies for data retrieval from data warehouses
Document Type
Article
Date of Original Version
10-1-2006
Abstract
In this study, the effects of denormalization on relational database system performance are discussed in the context of using denormalization strategies as a database design methodology for data warehouses. Four prevalent denormalization strategies have been identified and examined under various scenarios to illustrate the conditions where they are most effective. The relational algebra, query trees, and join cost function are used to examine the effect on the performance of relational systems. The guidelines and analysis provided are sufficiently general and they can be applicable to a variety of databases, in particular to data warehouse implementations, for decision support systems. © 2004 Elsevier B.V. All rights reserved.
Publication Title, e.g., Journal
Decision Support Systems
Volume
42
Issue
1
Citation/Publisher Attribution
Shin, Seung Kyoon, and G. Lawrence Sanders. "Denormalization strategies for data retrieval from data warehouses." Decision Support Systems 42, 1 (2006): 267-282. doi: 10.1016/j.dss.2004.12.004.