Homework Help is Here – Start Your Trial Now!
Engineering
Computer Engineering
A company has several employees, all with different names, who perform interviews with job applicants (one applicant is interviewed by one employee). The job applicants also have different names. The interviewer makes appointments for interviews with the applicants. Each applicant may be interviewed at several occasions, possibly by different interviewers, but in that case the interviews take place during different days. The company has special interview rooms. Each interviewer uses the same room for all interviews during a day. A room may, however, be used by different interviewers during a day, as long as the interviews don't collide in time. The reservation of interview appointments is to be computerized. The database devel- oper has decided to use a single relation for all data, with the following schema: Interviews(interviewer, applicant, day, time, room) a) From the text, find functional dependencies in the relation. b) Find the keys of the relation. c) Show that the relation is in 3NF but not in BCNF. d) Decompose the relation in relations that are in BCNF.

A company has several employees, all with different names, who perform interviews with job applicants (one applicant is interviewed by one employee). The job applicants also have different names. The interviewer makes appointments for interviews with the applicants. Each applicant may be interviewed at several occasions, possibly by different interviewers, but in that case the interviews take place during different days. The company has special interview rooms. Each interviewer uses the same room for all interviews during a day. A room may, however, be used by different interviewers during a day, as long as the interviews don't collide in time. The reservation of interview appointments is to be computerized. The database devel- oper has decided to use a single relation for all data, with the following schema: Interviews(interviewer, applicant, day, time, room) a) From the text, find functional dependencies in the relation. b) Find the keys of the relation. c) Show that the relation is in 3NF but not in BCNF. d) Decompose the relation in relations that are in BCNF.

Computer Networking: A Top-Down Approach (7th Edition)
Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN:9780133594140
Author:James Kurose, Keith Ross
Publisher:James Kurose, Keith Ross
Chapter1: Computer Networks And The Internet
Section: Chapter Questions
Problem R1RQ: What is the difference between a host and an end system? List several different types of end...
See similar textbooks
icon
Related questions
Question
A company has several employees, all with different names, who perform interviews with job applicants (one applicant is interviewed by one employee). The job applicants also have different names. The interviewer makes appointments for interviews with the applicants. Each applicant may be interviewed at several occasions, possibly by different interviewers, but in that case the interviews take place during different days. The company has special interview rooms. Each interviewer uses the same room for all interviews during a day. A room may, however, be used by different interviewers during a day, as long as the interviews don't collide in time. The reservation of interview appointments is to be computerized. The database devel- oper has decided to use a single relation for all data, with the following schema: Interviews(interviewer, applicant, day, time, room) a) From the text, find functional dependencies in the relation. b) Find the keys of the relation. c) Show that the relation is in 3NF but not in BCNF. d) Decompose the relation in relations that are in BCNF. e) Extra assignment: draw an E/R diagram that describes the system. Try to incorporate all dependencies from the text in the diagram (not easy).
Transcribed Image Text:A company has several employees, all with different names, who perform interviews with job applicants (one applicant is interviewed by one employee). The job applicants also have different names. The interviewer makes appointments for interviews with the applicants. Each applicant may be interviewed at several occasions, possibly by different interviewers, but in that case the interviews take place during different days. The company has special interview rooms. Each interviewer uses the same room for all interviews during a day. A room may, however, be used by different interviewers during a day, as long as the interviews don't collide in time. The reservation of interview appointments is to be computerized. The database devel- oper has decided to use a single relation for all data, with the following schema: Interviews(interviewer, applicant, day, time, room) a) From the text, find functional dependencies in the relation. b) Find the keys of the relation. c) Show that the relation is in 3NF but not in BCNF. d) Decompose the relation in relations that are in BCNF. e) Extra assignment: draw an E/R diagram that describes the system. Try to incorporate all dependencies from the text in the diagram (not easy).
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 2 steps with 1 images

SEE SOLUTIONCheck out a sample Q&A here
Blurred answer
Recommended textbooks for you
Computer Networking: A Top-Down Approach (7th Edi…
Computer Networking: A Top-Down Approach (7th Edi…
Computer Engineering
ISBN:
9780133594140
Author:
James Kurose, Keith Ross
Publisher:
PEARSON
Computer Organization and Design MIPS Edition, Fi…
Computer Organization and Design MIPS Edition, Fi…
Computer Engineering
ISBN:
9780124077263
Author:
David A. Patterson, John L. Hennessy
Publisher:
Elsevier Science
Network+ Guide to Networks (MindTap Course List)
Network+ Guide to Networks (MindTap Course List)
Computer Engineering
ISBN:
9781337569330
Author:
Jill West, Tamara Dean, Jean Andrews
Publisher:
Cengage Learning
Concepts of Database Management
Concepts of Database Management
Computer Engineering
ISBN:
9781337093422
Author:
Joy L. Starks, Philip J. Pratt, Mary Z. Last
Publisher:
Cengage Learning
Prelude to Programming
Prelude to Programming
Computer Engineering
ISBN:
9780133750423
Author:
VENIT, Stewart
Publisher:
Pearson Education
Sc Business Data Communications and Networking, T…
Sc Business Data Communications and Networking, T…
Computer Engineering
ISBN:
9781119368830
Author:
FITZGERALD
Publisher:
WILEY
SEE MORE TEXTBOOKS