1) For each of the following relations, indicate the normal form for that relation. If the relation is not in...

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1) For each of the following relations, indicate the normal form for that relation. If the relation is not in third normal form, decompose it into 3NF relations. Functional dependencies (other than those implied by the primary key) are shown where appropriate.

a. CLASS(CourseNo, SectionNo)
b. CLASS(CourseNo, SectionNo, Room)
c. CLASS(CourseNo, SectionNo, Room, Capacity)

[FD:RoomCapacity]
d. CLASS(CourseNo, SectionNo, CourseName, Room, Capacity) [FD:FD:ourseNo->CourseRoom; CRoom
Capacity]

2) The Relation below stores information about weather observations made in the Albany area. You can assume that there are many observations made each day, that observer names are all unique, and that each observer measures the weather at just one location per day. Convert the relation them into a 3NF model and show the referential relationships. Don't add any additional fields.

(Date, ObserverName, Location, ObserverPhone, ObserverAddress, Time, CloudCover, Temperature, Humidity)

3) The Grade Report Table below shows a relation called Grade Report for a university. For this relation:

  1. Draw a relational model and diagram the functional dependencies in the relation.

  2. In what normal form is this relation in?

  3. Decompose Grade Report into a set of 3NF relations.

  4. Draw a relational model for your 3NF relations and show the referential relationships.

StudentID

StudentName

CampusAddress

Major

CourseID

CourseTitle

Instructor Name

Instructor Location

Grade

168300458

Williams

208 Brooks

page2image20792

IS

page2image22040

IS 350

Database Mgt

Codd

page2image26304

B104

page2image27336

A

168300458

Williams

208 Brooks

IS

IS 465

Systems Analysis

Parsons

B317

B

543291073

Baker

104 Phillips

page2image40304

Acctg

IS 350

Database Mgt

Codd

page2image44392

B104

C

543291073

Baker

104 Phillips

Acctg

page2image53000
page2image53296

Acct 201

Fund Acctg

page2image55880

Miller

H310

page2image58296

B

543291073

Baker

104 Phillips

page2image64872

Acctg

Mkgt 300

Into Mktg

Bennett

page2image69152 

 

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