Running Head: DATABASE NORMALIZATION Database Normalization *************** IST 7000 October 2006 Table of Contents ABSTRACT 3 Brief overview 4-5 Types of Normal Forms 5-9 Advantages and Disadvantages 9-10 Normalization Best practices 10-11 Conclusion 11-12 References 13 Appendix A 14 Example Normal Form Diagrams 15
Words: 3045 - Pages: 13
Final Exam A 1. Redundancy refers to what database condition? a. A primary key is repeated in another table as a foreign key. b. All data is stored in tables. c. The same data is recorded in more than one place in the same database. d. You have more than one database devoted to the same thing. 2. Which statement best describes the function of a primary key? a. It uniquely identifies each record. b. It is always a number. c. It is the first field in a table. d. It unlocks the data in a
Words: 5623 - Pages: 23
Why to Normalize? 3- Normalization & Its types. 4- Applications of Normalization. 5- Conclusion Introduction While working with databases, one must have got chances to hear the term normalization. If someone asks "Is that database normalized?" or "Is that in BCNF?" All too often, the reply is "Uh, yeah." Normalization is often brushed aside as a luxury that only academics have time for. However, knowing the principles of normalization and applying them to
Words: 1576 - Pages: 7
Who needs a Database? Redundancy: It refers to storing the same data in more than one place in the database Primary Key: constraint uniquely identifies each record in a database table. Primary keys must contain unique values. A primary key column cannot contain NULL values. Each table should have a primary key, and each table can have only ONE primary key. SQL: is a standard language for accessing databases. Foreign Key: is a column or combination of columns that is used to establish and enforce
Words: 1187 - Pages: 5
Locator) is means of identifying files on the web. “Application transfer protocol://host name.domain name.top-level domain/path/file” Domain name is the unique name assigned to an IP address. * Describe how DNS works DNS is a distributed database of
Words: 2137 - Pages: 9
.......................................................... 5 1.1.1 Methodology .......................................................................................................................... 6 1.1.2 Data Modeling In the Context of Database Design................................................................ 6 1.1.3 Components of A Data Model................................................................................................ 6 1.1.4 Why is Data Modeling Important? .......
Words: 16719 - Pages: 67
2.13 What is the SQL SELECT /FROM/WHERE framework? 2.14 Explain how Access uses SQL. 2.15 Explain how enterprise-class DBMS products use SQL. 2.16 There is an intentional flaw in the design of the INVENTORY table used in these exercises. This flaw was purposely included in the INVENTORY tables so that you can answer some of the following questions using only that table. Compare the SKU and INVENTORY tables, and determine what design flaw is included in INVENTORY. Specifically
Words: 7421 - Pages: 30
HANDS-ON DATABASE AN INTRODUCTION TO DATABASE DESIGN AND DEVELOPMENT Steve Conger Seattle Central Community College Prentice Hall Boston Columbus Indianapolis New York San Francisco Upper Saddle River Amsterdam Cape Town Dubai London Madrid Milan Munich Paris Montreal Toronto Delhi Mexico City Sao Paulo Sydney Hong Kong Seoul Singapore Taipei Tokyo Editorial Director: Sally Yagan Editor in Chief: Eric Svendsen Executive Editor: Bob Horan Product Development Manager: Ashley Santora
Words: 70521 - Pages: 283
ON DATABASE by Steve Conger © 2010 Hands ON Database Introduction Many students taking an introductory database course need hands-on experience. Typically they are under pressure to finish quickly with a certificate or degree and get to work. They need to get actual practice in the process of designing and developing databases that they can apply in their future employment. They need to create tables, enter data, and run SQL queries. This book is designed for them. Hands on Database: an
Words: 66591 - Pages: 267
and the department the proposed system will mostly cover. 1.1 BACKGROUND INFORMATION Airport and Beyond cars and services is a company located in Nairobi’s Lang’ata area along Lang’ata road near St Mary’s Hospital. Its 20 distance minutes away from the central Business District. It was started in May 2012 after the owner joined hands with his former workmates and decided to start the company to provide the services to the customers. Its main operations include travel services to the clients
Words: 5407 - Pages: 22
