What is logical field, what are benefits of using this? Explain with example
What is logical field, what are benefits of using this? Explain with example
Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
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What is logical field, what are benefits of using this? Explain with example
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Definition:
A logical field is a data field that contains any of the following value pairs:
- a yes/no
- true/false
- 0/1
So, they are used to store:
- yes or No,
- True or false
- 0 or 1
They do not exist in the database by themselves, rather they are created based on the logic applied to perform the intended operation.
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