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Relational Database Design and Implementation, 3rd Edition by Jan L. Harrington

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Chapter 3. Why Good Design Matters
Many of today's businesses rely on their database systems for accurate, up-to-date information. Without those repositories of mission-critical data, most businesses are unable to perform their normal daily transactions, much less create summary reports that help management make strategic corporate decisions. To be useful, the data in a database must be accurate, complete, and organized in such a way that data can be retrieved when needed and in the format desired.
Well-written database application programs—whether they execute locally, run over a local area network, or feed information to a Web site—are fundamental to timely and accurate data retrieval. However, without a good underlying database design, even ...

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