Normalization, computer science homework help

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timer Asked: May 21st, 2016
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Question Description

Assignment 2: Normalization

Due Week 6 and worth 100 points

Suppose that you are the database developer for a local college. The Chief Information Officer (CIO) has asked you to provide a summary of normalizing database tables that the IT staff will use in the upcoming training session. 

Write a two to three (2-3) page paper in which you:

  1. Describe the steps that you would use in order to convert database tables to the First Normal Form, the Second Normal Form, and the Third Normal Form.
  2. Provide one (1) example that is relevant to a college environment that illustrates reasons for converting database tables to the First, Second, and Third Normal Forms.
  3. Explain typical situations when denormalizing a table is acceptable. Provide one (1) example of denormalizing a database table to justify your response.
  4. Explain the significant manner in which business rules impact both database normalization and the decision to denormalize database tables.
  5. Use at least three (3) quality resources in this assignment. Note: Wikipedia and similar Websites do not qualify as quality resources.

Your assignment must follow these formatting requirements:

  • Be typed, double spaced, using Times New Roman font (size 12), with one-inch margins on all sides; citations and references must follow APA or school-specific format. Check with your professor for any additional instructions.
  • Include a cover page containing the title of the assignment, the student’s name, the professor’s name, the course title, and the date. The cover page and the reference page are not included in the required assignment page length. 

The specific course learning outcomes associated with this assignment are:

  • Recognize the purpose and principles of normalizing a relational database structure.
  • Design a relational database so that it is at least in 3NF.
  • Use technology and information resources to research issues in database systems.
  • Write clearly and concisely about relational database management systems using proper writing mechanics and technical style conventions.

Tutor Answer

teacherbrian
School: University of Maryland

This one assignment is ready my good friend...

Normalization and its Example
Normalization is a way of organizing the data efficiently in a database. A normalized
data is considered to be primary requirement of good database design. It manages tables
in a way that minimizes redundancy and data dependency. It involves breaking down the
large tables into smaller ones. Normalization is needed for accurate representation of
data, relationships and constraints. It involves conducting series of tests on relations to
find out whether it fulfills or infringes the requirements of normal forms. Main reason
for normalization is to prevent possible corruption of data that can arise from insert,
delete and update anomalies.
Database is normalized after logical modeling but prior to physical phase of database
design.
First Normal Form: A database table is said to be in First normal form when it does not
contain any repeating group i.e. when it doesn’t contain any multi-valued attribute.
For example, Considering an ERD for database of books (College Library) rented out
maintained by some library which contains Customer ID, Full Name, Address and books
Rented.
Supposing
Customer ID

Full Name

Address

Movies Rented

101

James park

101 NY

POC, LOP

102

Robert William

543 WDC

ILU, Transformer

Here, Books Rented is multi-valued attribute as one customer can take more than one
book. Therefore, to be in first normal form, each field shou...

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Review

Anonymous
Good stuff. Would use again.

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