NORMALIZATION
INFO 1700
DATABASE CONCEPTS AND DESIGN
NAME: __Tobias Kiuntke_______
DIRECTIONS: Complete the following question/problems. The actual questions are on pages AC A28 –
AC A31. Embed your answers into this document. When you need to draw an ERD use Visio 2010 and
paste your response into this document. Upload this saved document to the assignment area for
grading.
1. What are the formal names for a table, for a row, for a column? What are the popular names
for a row and for a column? Relation, tupile, attribute. Record and field.
2. What is a domain? Set of values permitted for a field.
3. What is an entity? Something you want to store and process data for.
4. What is the relationship between a primary key and a candidate key? A primary key is a column
or columns that have values that uniquely identify each row in a table. A candidate key is a
column or columns that have unique values and can qualify as primary keys.
5. What is a composite key? A multiple column primary key.
6. What is a foreign key? A column or columns that have values that must match the primary key
of another table or they must be null.
7. Look for an example of a one-to-one relationship, an example of a one-to-many relationship,
and an example of a many-to-many relationship in a newspaper, magazine, book, or everyday
situation you encounter. For each one, name the entities and select the primary and foreign
keys.
8. When do you use an entity subtype? Either when you have to have employees access differing
fields in a table or when you might have nulls in a field.
9. What is a composite entity in an entity-relationship diagram? A relationship that has the
characteristics of an entity.
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10. What is the entity integrity constraint? The primary key can’t be null.
11. What is referential integrity? A constraint that says any non-null foreign key value must match a
primary key value in the primary table.
12. What does the cascades option, which is used with referential integrity, accomplish? When you
make a change it updates the matching foreign key value to the new primary key value.
13. What are partial and transitive dependencies? Partial is a functional dependency on part of the
primary key value. Transitive is functional dependency between two non-key values that are
dependent on a third field.
14. What three types of anomalies can be exhibited in a table, and what problems do the cause?
Insertion, deletion and update anomalies. They result in misrepresented data, loss of data and
inconsistent data.
15. Figure A-24 on page AC A29 shows the Employee, Position, and Employment tables with primary
keys EmployeeNum, PositionID, and both EmployeeNum and PositionID, respectively. Which
two integrity constraints do these tables violate and why?
16. Skip
17. Complete this problem by reading the scenario posed on AC A29-AC A30.
First Normal Form
Dancers (DanceID, DanceName, DanceAdd, DancePhone, ClassID)
FK: ClassID to Classes Table
Classes (ClassID, ClassDay, ClassTime, InstrID)
FK: InstrID to Instructors Table
Instructors (InstrID, InstrName)
18. Complete this problem by reading the scenario posed on AC A30. Use Visio to create the ERD.
a. Publishers, Authors, Borrowers, Books, Borrowed Books, Catalog
b. Authors (AuthCode, AuthName)
Books (BookNum, Book Title, BookCopies, LoanDate, PubCode)
FK: PubCode to Publishers Table
Publishers (PubCode, PubName, PubAdd)
Borrowers (BorrCardNum, BorrName, BorrAdd)
Catalog (BookNum, AuthCode)
FK: BookNum to Books Table
FK: AuthCode to Authors Table
BorrowedBooks (BookNum, BorrCardNum)
FK: BookNum to Books Table
FK: BorrCardNum to Borrowers Table
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Books
PK
BookNum
BookTitle
BookCopies
LoanDate
FK1 PubCode
Borrowed
PK,FK1 BookNum
PK,FK2 BorrCardNum
Catalog
PK,FK1 BookNum
PK,FK2 AuthCode
Publishers
PK PubCode
PubName
PubAdd
Authors
Borrowers
PK AuthCode
PK BorrCardNum
AuthName
BorrName
BorrAdd
19. Complete this problem by reading the scenario posed on AC30.
EmployeeID
20. Complete this problem by reading the scenario posed on AC31.
a. Patient (PatientID, DoctorID, ServiceCode, PatientName, BalanceOwed, DoctorName,
ServiceDesc, ServiceFee, ServiceDate)
b. Patient (PatientID, PatientName, BalanceOwed)
Doctor (DoctorID, DoctorName, PatientID)
FK: PatientID to Patient Table
Service (ServiceCode, ServiceDesc, ServiceFee)
BilledService (PatientID, ServiceCode, ServiceDate)
FK: PatientID to Patient Table
FK: ServiceCode to Service Table
21. Complete this problem by reading the scenario posed on AC31.
a. Climber (ClimberID, ClimberFirst, ClimberLast, ClimberNat, ClimberBirth, ClimberDeath,
ClimberNote)
Expedition (ExpID, ExpName, ExpLead, ExpNote, PeakID)
FK: PeakID to Peak Table
Peak (PeakID, PeakName, PeakHeight, PeakNote, FaceID)
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FK: FaceID to Face Table
Face (FaceID, FaceName, FaceNote, AscID)
FK: AscID to Ascent Table
Ascent (AscID, AscHeight, AscDate, AscNotes)
Note (ClimberID, ExpID, Notes)
FK: ClimberID to Climber Table
FK: ExpID to Expedition Table
PK
FaceID
FK1
FaceName
FaceNote
AscID
Expeditions
Peak
Face
PK
PeakID
FK1
PeakName
PeakHeight
PeakNote
FaceID
PK
ExpID
FK1
ExpName
ExpLead
ExpNote
PeakID
Note
PK,FK2
PK,FK1
ClimberID
ExpID
Note
Ascent
PK
Climbers
AscID
PK
AscHeight
AscDate
AscNote
ClimberID
ClimberFirst
ClimberLast
ClimberNat
ClimberBirth
ClimberDeath
ClimberNote
How will I be graded on these assignments?
Rubric
Scoring Guide
Criteria
1.
Ratings
The assignment meets all the requirements as specified in
the case problem.
a. Documentation saved using Word 2010
2.
The completed assignment is of professional quality. A
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professional assignment would be an asset in an
employment portfolio and would be what employers would
expect from an employee.
3.
The assignment demonstrates a strong understanding of the
database and clearly communicates the intended message
to the intended audience. This includes how the assignment
is organized, explained, presented or displayed.
4.
The assignment has good mechanics (i.e., spelling, grammar,
meaningful file names, and effective file organization) and is
submitted on-schedule. Late assignments will be at least a 5
point deduction.
Total Points Possible 100:
0
Comments:
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