Modern Database Management
Modern Database Management
13th Edition
ISBN: 9780134773650
Author: Hoffer
Publisher: PEARSON
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Chapter 2, Problem 2.42PAE
Program Plan Intro

To create an ER diagram with the given information of student and adviser.

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Requirement analysis: Course evaluation must have a student, the students relation contains a unique student id, full name for each student, email address, phone number, address and date of birth. For each course, the courses contain course id, course name and credit. Each student can take many courses. For each Instructor, the instructors contain id, name and email. Each instructor can instruct many courses. For each section, the sections contain section id, year and semester. Students are able to evaluate the current courses.   ER-diagram: Please complete the ER diagram using Microsoft word.   Instructor ID Full name Email  Student ID Full name  Email Phone number Address Date of birth   Course ID Course title  Description   Credit  Section  ID Year  Semester  Please Complete the diagram on MS word.
Specify the degree of this relationship (1:1, 1:M, or M:N): The attributes of employee include ID, Name, Address, and Birth_Date. Employees work on projects. The attributes of project include Project_Code, Description, and Start_Date. Each employee may be assigned to many projects. A project is required to have at least one employee assigned.
Draw an ERD for the following requirements There are many air conditioners in EMU. Each air conditioner has a unique inventory number. We have to store the model and make of each air conditioner. Each air conditioner is located in a room. Each room is identified by a unique roomid. We also store the capacity and type of the room. Each air conditioner is serviced twice a year. For each service, we need to store the date of the service and the name of the person who performed the service.

Chapter 2 Solutions

Modern Database Management

Ch. 2 - List the four types of cardinality constraints,...Ch. 2 - Give an example, Other than those described in...Ch. 2 - What is the degree of a relationship? List the...Ch. 2 - Give an example (Other than those described in...Ch. 2 - Give an example of each of the following, other...Ch. 2 - Give an example of the use of effective (or...Ch. 2 - State a rule that says when to extract an...Ch. 2 - Prob. 2.18RQCh. 2 - In addition to explaining what action is being...Ch. 2 - For the Manages relationship in Figure 2-12a,...Ch. 2 - Explain the distinction between entity type and...Ch. 2 - Why is it recommended that every ternary...Ch. 2 - A cellular operator needs a database to keep track...Ch. 2 - Prob. 2.24PAECh. 2 - Answer the following questions concerning Figure...Ch. 2 - Prob. 2.26PAECh. 2 - You may have been assigned a CASE or a drawing...Ch. 2 - Consider the two E-R diagrams in Figure 2-25 Q,...Ch. 2 - Prob. 2.29PAECh. 2 - Are associative entities also weak entities? Why...Ch. 2 - Because Visio does not explicitly show associative...Ch. 2 - Figure 2-26 shows a grade report that is mailed to...Ch. 2 - Prob. 2.33PAECh. 2 - The Is Married To relationship in Figure 2-12a...Ch. 2 - Figure 2-27 represents a situation of students who...Ch. 2 - Figure 2-28 shows two diagrams (A and B), both of...Ch. 2 - Prob. 2.37PAECh. 2 - Review Figure 2-8LQ and Figure 2-22. Identify any...Ch. 2 - Prob. 2.39PAECh. 2 - Prob. 2.40PAECh. 2 - Prob. 2.41PAECh. 2 - Prob. 2.42PAECh. 2 - Prob. 2.43PAECh. 2 - Prob. 2.44PAECh. 2 - Prob. 2.45PAECh. 2 - Prob. 2.46PAECh. 2 - Prob. 2.47PAECh. 2 - Prob. 2.48PAECh. 2 - Draw an ERD for the following situation. (State...Ch. 2 - Prob. 2.50PAECh. 2 - Prob. 2.51PAECh. 2 - Review your answer to Problem and Exercise 2-49 if...
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