Pearson eText for Modern Database Management -- Instant Access (Pearson+)
13th Edition
ISBN: 9780137305940
Author: Jeffrey Hoffer, Ramesh Venkataraman
Publisher: PEARSON+
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Chapter 3, Problem 3.32PAE
Program Plan Intro
Draw the EERD for the RentQualityComputers(RCQ) based on the given information.
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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.
The designer also maintains the name, phone number, and address of people who have bought dresses from the store.
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.
ER-Diagram and EER-Diagram
Medinah Transport dealership sells Proton, Ford, Honda and Toyota. The dealership keeps the cars information such as vehicle number, list price, chassis number, made (eg. Honda, Toyota), model name (eg. Civic, Camry) and year. They also keep information about all sales they have made (for instance, invoice number, buyer’s name, data of purchase and amount paid for the car). In order to contact the buyers in the future, the dealership also keeps their telephone number and address. Some buyers bought more than one car. For statistical purposes, the buyer’s gender and age are also captured. Dealer also needs to know the staff who sold the cars to the buyers such as their staff ID, name, phone number, gender, date of birth, address and basic salary. The dealership has two types of staff - sales agent and admin. Sales agent will have sales quota, basic salary and sales commission from selling cars. While admin staff will receive basic salary and overtime (based on…
Make use-case diagram: The customer wants a system for bike racing registrations where Organizers of eventscan publish races, people who want to race can sign up and the system should also keeptrack of the old races to racers can "level up" and start in higher categories (cat).Racers who officially want to race need to sign up with the system with their name,credit card information. To be able to register for official races they need to buy alicence. The license is always valid for 1 year and has a specific ID and is for the racerscurrent level (cat). Racers are sorted into categories 5-1 where 5 is beginner and 1 isthe best category. Racers can only race in official events if they have the cat required,so they need to race against others their level.Organizers can create races. The interesting part is though that a race can consist ofdifferent stages. E.g. one stage is a road race, the other a criterium and the other atime trial (you can find what these are online). Each stage is on a…
Chapter 3 Solutions
Pearson eText for Modern Database Management -- Instant Access (Pearson+)
Ch. 3 - Define each of the following terms: supertype...Ch. 3 - Match the following terms and definitions:...Ch. 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 - In Figure 3-5b, why must the minimum cardinality...Ch. 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 - Draw an EER diagram for the following situation:...Ch. 3 - Develop an EER model for the following situation,...Ch. 3 - Prob. 3.32PAECh. 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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- A library has books, journals, and periodicals that it loans to its users. All library material has an accession number which is a unique identifier and a price. In addition, a book has a title, publisher, year of publication, edition, and authors. Journals have journal name, volume number, issue number and year of publication. Each article in a journal has a title and authors. A periodical has a name and date of publication. The library keeps one or more copies of each library item (book, journal, periodical). Copies of all library material can be loaned to users. Reference-only material is loaned for 2hrs and can’t be removed from the library. Other material can be loaned for 2 weeks. For every loan, the library records the user, the loan date and time, and the return date and time. For users, the library keeps their name, address, and cell phone number. If a user loses a loaned item they are made to purchase it, however, if the user delays with the loaned item they are finned…arrow_forwardA library has books, journals, and periodicals that it loans to its users. All library material has an accession number which is a unique identifier and a price. In addition, a book has a title, publisher, year of publication, edition, and authors. Journals have journal name, volume number, issue number and year of publication. Each article in a journal has a title and authors. A periodical has a name and date of publication. The library keeps one or more copies of each library item (book, journal, periodical). Copies of all library material can be loaned to users. Reference-only material is loaned for 2hrs and can’t be removed from the library. Other material can be loaned for 2 weeks. For every loan, the library records the user, the loan date and time, and the return date and time. For users, the library keeps their name, address, and cell phone number. If a user loses a loaned item they are made to purchase it, however, if the user delays with the loaned item they are finned…arrow_forwardCreate the ERD. (Hint: Look at the table contents. You will discover that an AIRCRAFT can fly many CHARTER trips but that each CHARTER trip is flown by one AIRCRAFT, that a MODEL references many AIRCRAFT but that each AIRCRAFT references a single MODEL, and so on.)arrow_forward
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