Database Systems: Design, Implementation, & Management
Database Systems: Design, Implementation, & Management
11th Edition
ISBN: 9781285196145
Author: Steven, Steven Morris, Carlos Coronel, Carlos, Coronel, Carlos; Morris, Carlos Coronel and Steven Morris, Carlos Coronel; Steven Morris, Steven Morris; Carlos Coronel
Publisher: Cengage Learning
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Chapter 1, Problem 1P
Program Plan Intro

Field:

Field is a single bit or set of data or characters used for defining certain topic or characteristic. The data can be both numeric and alphanumeric. It can specify a mobile number, time or any other topic or characteristic which the user wants to specify.

Record:

Record is a set of fields which has information of at least one variable or item. It describes clearly about the item using fields. For example, a File record has fields which describe its terms like file name, file size and many such.

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What do you term a collection of records that belong together?
What do you call a collection of records that have been arranged in a certain order?
How many records does the file contain? How many fields are there per record? What problem would you encounter if you wanted to produce a listing by city? How would you solve this problem by altering the file structure? If you wanted to produce a listing of the file contents by last name, area code, city, state, or zip code, how would you alter the file structure? What data redundancies do you detect? How could those redundancies lead to different types of anomalies?
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