Chapter 7 homework – normalization of relational tables

Module/Week 5  Homework Assignment

Chapter 7 Homework

PART 1:   (1 point)

Given the following table, identify the functional dependencies:  

StdSSN

StdCity

StdClass

OfferNo

OffTerm

OffYear

EnrGrade

CourseNo

CrsDesc

S1

SEATTLE

JUN

01

SPRING

2009

3.5

C1

DB

S1

SEATTLE

JUN

02

FALL

2009

3.3

C2

VB

S2

DENVER

JUN

03

SPRING

2010

3.1

C3

OO

S2

DENVER

JUN

02

FALL

2009

3.4

C2

VB

 

 

 

 

 

 

 

 

 

 

 

 

PART 2: (1 point)

In the table provided below, fill in the following data such that it is completely un-normalized.  That is, it is not even in 1NF.

222-33-44444  John Doe         Web Design, Database, Intro to MIS, C# Programming

555-66-7777    Jane Doe         Prin. Of Accounting, Auditing I, Statistical Analysis

SSN

StudentName

Courses

 

 

 

 

 

 

 

PART 3: (1 point)

Using your un-normalized table above, fill in the table below with the data in 1NF.

SSN

StudentName

Courses

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

PART 4:

Given the following table and functional dependencies, construct tables below that will satisfy 2NF and identify the primary key of each new table. Note that the primary key of this table is StdSSN + OfferNo.

StdSSN

StdCity

StdClass

OfferNo

OffTerm

OffYear

EnrGrade

CourseNo

CrsDesc

S1

SEATTLE

JUN

01

SPRING

2009

3.5

C1

DB

S1

SEATTLE

JUN

02

FALL

2009

3.3

C2

VB

S2

DENVER

JUN

03

SPRING

2010

3.1

C3

OO

S2

DENVER

JUN

02

FALL

2009

3.4

C2

VB

 

Functional dependencies:

StdSSN à StdCity, StdClass

OfferNo à OffTerm, OffYear, CourseNo, CrsDesc

StdSSN, OfferNo à EnrGrade

(1/2 point)

Table 1 

Primary Key:      _______________________________ 

 

(1/2 point)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Table 2

Primary Key:        _______________________________   

(1/2 point)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Table 3

Primary Key:    _______________________________

 

PART 5:(1/2 point)

Now, assume an additional functional dependency:

CourseNo à CrsDesc

 

What table above needs to be modified to accommodate this new functional dependency?

_______________________________

 

 

PART 6:(1/2 point)

Given this new functional dependency, create tables below that will put this table in 3NF.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Table 4

Primary Key:   _______________________________

 

Table 5

Primary Key:    _______________________________

PART 7:(1/2 point)

Identify any foreign keys in Table 4:   _______________________________

Calculate your order
Pages (275 words)
Standard price: $0.00
Client Reviews
4.9
Sitejabber
4.6
Trustpilot
4.8
Our Guarantees
100% Confidentiality
Information about customers is confidential and never disclosed to third parties.
Original Writing
We complete all papers from scratch. You can get a plagiarism report.
Timely Delivery
No missed deadlines – 97% of assignments are completed in time.
Money Back
If you're confident that a writer didn't follow your order details, ask for a refund.

Calculate the price of your order

You will get a personal manager and a discount.
We'll send you the first draft for approval by at
Total price:
$0.00
Power up Your Academic Success with the
Team of Professionals. We’ve Got Your Back.
Power up Your Study Success with Experts We’ve Got Your Back.