With an example explain what a derived attribute is?

Fundamentals of Information Systems
8th Edition
ISBN:9781305082168
Author:Ralph Stair, George Reynolds
Publisher:Ralph Stair, George Reynolds
Chapter3: Database Systems And Applications
Section: Chapter Questions
Problem 2.1CTQ
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.         Short Answer:

1.    With an example explain what a derived attribute is?

2.    Explain levels of database with the help of suitable example.

3.    What are weak Entities? How are they represented in database?

4.    Define data model. Explain record-based data models using diagrams.

5.    Explain difference between 1:1 and 1: M relationship.

II.       Application

1.       Draw any ER Diagram which demonstrates the following 

a.       Entity

b.       Attribute

c.       Multi-valued attribute

d.       Composite attribute

e.       Derived attribute

 

 

handwriting fo er diagram 

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