Modern Database Management (12th Edition)
12th Edition
ISBN: 9780133544619
Author: Jeffrey A. Hoffer, Ramesh Venkataraman, Heikki Topi
Publisher: PEARSON
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Textbook Question
Chapter 3, Problem 3.32PAE
Draw an EER diagram for the following description of a law firm:
Each case handled by the firm has s unique case number: a date opened, date closed, and judgment description are also kept on each case. A case is brought by one or more plaintiffs, and the same plaintiff may be involved in many cases. A plaintiff has a requested judgment characteristic. A case is against one or more defendants, and the same defendant may be involved in many cases. A plaintiff or defendant may be a person or an organization. Over time, the same person or organization may be a defendant or plaintiff in cases. In either situation, such legal entities are identified by an entity number, and other attributes are name and net worth.
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need diagram only
Draw an ER diagram for the following scenario:
A designer has a store of designer dresses both for male and female.
People can buy as well as take dresses on rent from the store.
Each dress in the designer's store, is identified by unique ID.
A dress in the store can be categorized into various categories Western, Indian, Indo-westem, etc.
The designer maintains the name, phone number of people who have taken dresses on rent.
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The designer also collects feedback from the people who have bought or taken dresses on rent from the store.
Design the ER diagram by mentioning all the structural constraints. You may also include additional information in addition to the requirements listed.
Chapter 3 Solutions
Modern Database Management (12th Edition)
Ch. 3 - Define each of the following terms: supertype...Ch. 3 - Prob. 3.2RQCh. 3 - Contrast the following terms: supertype; subtype...Ch. 3 - State two conditions that indicate when a database...Ch. 3 - Prob. 3.5RQCh. 3 - Give an example (other than those discussed in the...Ch. 3 - What is the attribute inheritance? Why is it...Ch. 3 - Give an example of each of the following: a...Ch. 3 - What types of business rules are normally captured...Ch. 3 - What is the purpose of a subtype discriminator?
Ch. 3 - Prob. 3.11RQCh. 3 - In what ways is starting a data modeling project...Ch. 3 - Prob. 3.13RQCh. 3 - Prob. 3.14RQCh. 3 - What do you purchase when you acquire a packaged...Ch. 3 - Prob. 3.16RQCh. 3 - When is a member of a supertype always a member of...Ch. 3 - Examine the hierarchy for the university EER...Ch. 3 - Add a subtype discriminator for each of the...Ch. 3 - For simplicity, subtype discriminators were left...Ch. 3 - Refer to the employee EER diagram in Figure 3-2....Ch. 3 - Refer to the EER diagram for patients in Figure...Ch. 3 - Figure 3-13 shows the development Of entity...Ch. 3 - Refer to Problem and Exercise 2-44 in Chapter 2...Ch. 3 - For a library, the entity type HOLDING has four...Ch. 3 - A bank has three types of accounts: checking,...Ch. 3 - Refer to your answer to Problem and Exercise 2-4...Ch. 3 - Refer to your answer to Problem and Exercise 3-24...Ch. 3 - Prob. 3.29PAECh. 3 - Prob. 3.30PAECh. 3 - Develop an EER model for the following situation,...Ch. 3 - Draw an EER diagram for the following description...Ch. 3 - Prob. 3.33PAECh. 3 - Prob. 3.34PAECh. 3 - Based on the EER diagram constructed for Problem...Ch. 3 - Prob. 3.36PAECh. 3 - Prob. 3.37PAECh. 3 - Add the following to Figure 3-16: An EMPLOYMENT...
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