1. Quiz 2 (Database Design)
MIS 320
Quiz 2 (Database Design)

2. Instructions
Write your student number (not your name) on a piece of paper.
This quiz contains four situations.
Each is a set of sample data that has been arranged in a database table.
Each of these contains an error.
Your job is to identify the error (2 pts.) and suggest a solution (½ pt.).
You may use any notes you have made and the class lecture notes.
Each situation will be visible for 3 minutes [in this demo version, press enter to advance].

3. 1. Activity Table ACTIVITY HOURS RATE TOTAL Measure for awning 2.5 $50
This is a derived attribute and should be removed.
1. Activity Table
ACTIVITY
HOURS
RATE
TOTAL
Measure for awning
2.5
$50
$125
Fabricate awning 12
$75
$900
Install awning 6
$60
$360

4. 2. Department Table Department Building Building Supervisor Accounting
This attribute does not depend on the primary key (Department) and should be moved to a different table.
2. Department Table
Department
Building
Building Supervisor
Accounting
403 North Sixth
Fred Smith
Human Resources
1312 Elm
Sarah Ryan
Purchasing

5. 3. Employee Table Employee Name Dependent 1 Dependent 2 Dependent 3
This is a repeating group and should be moved to a new entity.
3. Employee Table
Employee Name
Dependent 1
Dependent 2
Dependent 3
Elmer Coltrane
Ellen Coltrane
Edgar Coltrane
None
Geoffrey Jones
Gretta Jones
Gunnar Jones
Gwendolyn Jones
Elizabeth Sharp

6. 4. Bartender’s Table Drink Ingredient 1 Ingredient 2 Ingredient 3
There is a M:M relationship between drinks and ingredients which requires a new entity (ingredients) and an intersection table.
4. Bartender’s Table
Drink
Ingredient 1
Ingredient 2
Ingredient 3
Ingredient 4
Rum and Coke
Rum
(1½ oz.)
Coke
(6 oz.)
Ice
None
Martini
Vermouth (splash)
Gin
Olive (2)
Bloody Mary
Vodka
Bloody Mary mix
Celery stalk