Database Systems: Design, Implementation, & Management
11th Edition
ISBN: 9781285196145
Author: Steven, Steven Morris, Carlos Coronel, Carlos, Coronel, Carlos; Morris, Carlos Coronel and Steven Morris, Carlos Coronel; Steven Morris, Steven Morris; Carlos Coronel
Publisher: Cengage Learning
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Question
Chapter 2, Problem 7RQ
Program Plan Intro
Object:
- The variable for this defined class is called the object.
- It is also called as instance of a class.
- It is a unit of code which is derived from the processes.
- It is an instance of the class which has its own procedures for the execution.
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A/An ___________ is an association among entities. Write the letter of the correct answer in the blank.
a. Object-based logical model
b. Relationship
c. Data model
What is the definition of an entity? a person or thing that exists.
A property that specifies the nature of an entity is called an attribute.
Chapter 2 Solutions
Database Systems: Design, Implementation, & Management
Ch. 2 - Prob. 1RQCh. 2 - What is a business rule, and what is its purpose...Ch. 2 - How do you translate business rules into data...Ch. 2 - Prob. 4RQCh. 2 - Explain how the entity relationship (ER) model...Ch. 2 - Prob. 6RQCh. 2 - Prob. 7RQCh. 2 - Prob. 8RQCh. 2 - Prob. 9RQCh. 2 - Prob. 10RQ
Ch. 2 - What is a relationship, and what three types of...Ch. 2 - Give an example of each of the three types of...Ch. 2 - What is a table, and what role does it play in the...Ch. 2 - Prob. 14RQCh. 2 - Prob. 15RQCh. 2 - Prob. 16RQCh. 2 - Prob. 17RQCh. 2 - Prob. 18RQCh. 2 - Prob. 19RQCh. 2 - Prob. 20RQCh. 2 - Prob. 22RQCh. 2 - Prob. 23RQCh. 2 - Prob. 1PCh. 2 - Prob. 2PCh. 2 - Prob. 3PCh. 2 - Prob. 4PCh. 2 - Prob. 5PCh. 2 - Using Figure P2.6 as your guide, work Problems 68....Ch. 2 - Prob. 7PCh. 2 - Prob. 8PCh. 2 - Typically, a hospital patient receives medications...Ch. 2 - Prob. 10PCh. 2 - Prob. 11PCh. 2 - Prob. 12PCh. 2 - Prob. 13PCh. 2 - Prob. 14PCh. 2 - Prob. 15PCh. 2 - Prob. 16P
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, computer-science and related others by exploring similar questions and additional content below.Similar questions
- Using a graphics program, develop an entity-relationship diagram for a database application for an Internet bookstore where students buy textbooks from a salesperson and receive invoices for their purchases. Use Figure 5.5 as a guide.arrow_forwardExplain object relationships and the concept of inherited attributes.arrow_forwardAn entity that depends on an other entity to exist is called ________ entity.arrow_forward
- OO questions Create the UML diagram for the two entities( person, books). A person has borrowed some books from a library. This can be represented as one to many associations. Please implant this bidirectional association considering that there is no order of the books.arrow_forwardWhat are the two options for a designer when confronted with a multivalued attribute?arrow_forwardExplain the various semantic categories, including when and how they are utilised, as well as the merits and downsides of each categorization.arrow_forward
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