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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
2. With reference to question 1, and assuming that none of the enterprise rules are
known to you:
(a) can you deduce any of the enterprise rules merely by inspecting the table
occurrence that you have written?
(b) if you are told that a bookNo uniquely identifies a book, which of the other
enterprise rules can you deduce from an inspection of the table? (3 min)
3. As part of a fact finding investigation you are told that each employee has a unique
employeeNo. Does this mean that:
(a) an employee has only one employeeNo;
(b) no two employees share the same employeeNo;
(c) all employees have the same employeeNo;
(d) some combination of the above? (5 min)
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Publisher Resources

ISBN: 9780750650861