Figure 4-32 shows an EER diagram for a simplified credit card environment. There are two types of

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Figure 4-32 shows an EER diagram for a simplified credit card environment. There are two types of card accounts: debit cards and credit cards. Credit card accounts accumulate charges with merchants. Each charge is identified by the date and time of the charge as well as the primary keys of merchant and credit card.
a. Develop a relational schema.

b. Show the functional dependencies.
c. Develop a set of 3NF relations.

CUSTOMER Customer ID Cust Name Cust Address Holds CARD ACCOUNT MERCHANT Merch ID Account ID Exp Date Card Type Merch Add

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Essentials of Database Management

ISBN: 978-0133405682

1st edition

Authors: Jeffrey A. Hoffer, Heikki Topi, Ramesh Venkataraman

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