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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
entities which are associated via the relationship. For example, the fact that there is a
relationship occurrence between warehouse W1 and product P2 can be stated by
quoting the value {W1, P2} of the composite relationship identifier {warehouseNo,
productNo}. An exception to this general rule for constructing relationship identifiers
is discussed in section 12.7, and the connection between relationship identifiers and
table row identifiers is examined in section 12.8.
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Figure 8.2 is an example of an entity-relationship occurrence diagram, that is a diagram
which shows individual entity occurrences and their relationships. ...
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Publisher Resources

ISBN: 9780750650861