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Data Analysis for Database Design, 3rd Edition
book

Data Analysis for Database Design, 3rd Edition

by David Howe
May 2001
Intermediate to advanced content levelIntermediate to advanced
336 pages
14h 36m
English
Butterworth-Heinemann
Content preview from Data Analysis for Database Design, 3rd Edition
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The normalisation process is often described in terms of stages known as first, second,
third, fourth and fifth normal forms (1NF–5NF). Although we have not adopted this
approach in the present text, the terminology is sufficiently prevalent in the literature to
warrant a brief explanation. The general idea is that at each successive stage of
normalisation certain undesirable features are eliminated from the initial
unnormalised table. First normal form is obtained by eliminating repeating groups,
second normal form is obtained by eliminating non-identifier attributes that are not
functionally dependent on the whole of the identifier, and ...
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Publisher Resources

ISBN: 9780750650861