Answered step by step
Verified Expert Solution
Link Copied!

Question

1 Approved Answer

1) Consider the following relation (i.e., table) created for a class list: (Student#, class#, student-lastname, student-firstname, student-major, section#, meeting-time, meeting-room) a) Suppose we wish to

1) Consider the following relation (i.e., table) created for a class list:

(Student#, class#, student-lastname, student-firstname, student-major, section#,

meeting-time, meeting-room)

a) Suppose we wish to add a new class time and room (i.e., a new section). Is this

possible? Why or why not? If not, what is necessary to make it possible?

b) Suppose all students drop a particular class from their schedules (perhaps they have

heard that I will be teaching the class). What effect will this have on the data stored

in the class list relation?

c) Is the class list relation in 1st, 2nd, and 3rd normal form?

2) Consider the following two relations:

(Department#, dept-name, location, professor#)

(Professor#, prof-name, address, phone)

Professor# is a foreign key in the department relation and links the two tables together.

a)What is wrong with these relations (i.e., what problems will be caused) and how can the

tables be fixed?

Step by Step Solution

There are 3 Steps involved in it

Step: 1

blur-text-image

Get Instant Access to Expert-Tailored Solutions

See step-by-step solutions with expert insights and AI powered tools for academic success

Step: 2

blur-text-image_2

Step: 3

blur-text-image_3

Ace Your Homework with AI

Get the answers you need in no time with our AI-driven, step-by-step assistance

Get Started

Recommended Textbook for

Programming The Perl DBI Database Programming With Perl

Authors: Tim Bunce, Alligator Descartes

1st Edition

1565926994, 978-1565926998

More Books

Students also viewed these Databases questions

Question

LO2 Describe the various purposes of performance appraisals.

Answered: 1 week ago

Question

=+ Of the HR issues mentioned in the case,

Answered: 1 week ago