Modern Database Management (12th Edition)
Modern Database Management (12th Edition)
12th Edition
ISBN: 9780133544619
Author: Jeffrey A. Hoffer, Ramesh Venkataraman, Heikki Topi
Publisher: PEARSON
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Chapter 4, Problem 4.39PAE

For your answers to the following Problems and Exercises from prior chapters, transform the EER diagrams into a set of relational schemas, diagram the functional dependencies, and convert all the relations to third normal form.

a. Chapter 3, Problem and Exercise 3-32

b. Chapter 3, Problem and Exercise 3-37

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Answer D and E only   ** ERD attached (the second picture)   ** Relational model:   c) Entity Relationship to Relational Model: To convert the given diagram to a relational model, below are the steps:  Create Relations from Diagram: The relations in the model are as below:  1. Subscriber: (SubscriberID, Name, Address, Email, Phone) 2. SubscriptionTypes(TypeCode, Name, Description, DuartionDays) 3. Subscriptions(SubscriptionID, Price, StartDate, EndDate)   Solve the relationships by adding referential integration: 1) Subscription will have one Subscriber: Thus add a new foreign key SubscriberID 2) Subscription will have one SubscriptionType, thus add a new foreign key TypeCode.   FINAL RELATIONAL MODEL 1. Subscriber: (SubscriberID, Name, Address, Email, Phone) Primary key: SubscriberID Foreign key: NA   2. SubscriptionTypes(TypeCode, Name, Description, DuartionDays) Primary key: TypeCode (Either D or S) Foreign key: NA   3. Subscriptions(SubscriptionID, Price, StartDate, EndDate,…
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Table 4-8 shows a portion of a shipment table for a large manufacturing company. Each shipment (identified by Shipment#) uniquely identifies the shipment Origin, Destination, and Distance. The shipment Origin and Destination pair also uniquely identifies the Distance. Question: a. Develop a diagram that shows the functional dependencies in the SHIPMENT relation. b. In what normal form is SHIPMENT? Why? c. Convert SHIPMENT to third normal form if necessary. Show the resulting table(s) with the sample data presented in SHIPMENT.

Chapter 4 Solutions

Modern Database Management (12th Edition)

Ch. 4 - Prob. 4.11RQCh. 4 - Describe how the following components of an E-R...Ch. 4 - Prob. 4.13RQCh. 4 - Prob. 4.14RQCh. 4 - Briefly describe four typical problems that often...Ch. 4 - Prob. 4.16RQCh. 4 - Explain how each of the following types of...Ch. 4 - Prob. 4.18RQCh. 4 - Prob. 4.19RQCh. 4 - Prob. 4.20RQCh. 4 - Prob. 4.21RQCh. 4 - What is the relationship between the primary key...Ch. 4 - Prob. 4.23RQCh. 4 - Explain what can be done with primary keys to...Ch. 4 - Prob. 4.25RQCh. 4 - Explain three conditions that suggest a surrogate...Ch. 4 - Prob. 4.27RQCh. 4 - For each of the following E-R diagrams from...Ch. 4 - Prob. 4.29PAECh. 4 - Prob. 4.30PAECh. 4 - For your answers to the following Problems and...Ch. 4 - Figure 4-3212 shows a class list for Millennium...Ch. 4 - Prob. 4.33PAECh. 4 - Prob. 4.34PAECh. 4 - Prob. 4.35PAECh. 4 - Prob. 4.36PAECh. 4 - Prob. 4.37PAECh. 4 - Prob. 4.38PAECh. 4 - For your answers to the following Problems and...Ch. 4 - Transform Figure 2-15a, attribute version, to 3NF...Ch. 4 - Prob. 4.41PAECh. 4 - Prob. 4.42PAECh. 4 - Prob. 4.43PAECh. 4 - Prob. 4.44PAECh. 4 - For your answers to Problem and Exercise 3-33 from...Ch. 4 - Prob. 4.46PAECh. 4 - Prob. 4.47PAECh. 4 - Figure 4-38 includes an EER diagram for a...Ch. 4 - Prob. 4.49PAECh. 4 - Prob. 4.50PAECh. 4 - Prob. 4.51PAECh. 4 - Prob. 4.52PAECh. 4 - Figure 4-40 shows an EER diagram for a university...Ch. 4 - Explore the data included in Table 4-9. Assume...Ch. 4 - Prob. 4.55PAECh. 4 - Prob. 4.56PAECh. 4 - Prob. 4.57PAECh. 4 - Prob. 4.58PAE
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