
DATABASE CONCEPTS+MYITLAB
18th Edition
ISBN: 9780134821245
Author: KROENKE
Publisher: PEARSON C
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Expert Solution & Answer
Chapter 5, Problem 5.5RQ
Explanation of Solution
Denormalization:
A process of combining two relations into one new relation is called as “Denormalization”.
Example:
Consider the example of denormalization is as follows:
Normalized table:
Sales:
Sales_id | Sales_date | Sales_person |
Product:
Tax_id | Sales_id | Itm_id | Item_quantity | Sales_rs |
After denormalization the “Product” table is as follows:
Tax_id | Sales_date | Sales_person | Sales_id | Item_id |
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Chapter 5 Solutions
DATABASE CONCEPTS+MYITLAB
Ch. 5 - Explain how entities are transformed into tables.Ch. 5 - Prob. 5.2RQCh. 5 - Prob. 5.3RQCh. 5 - What is denormalization?Ch. 5 - Prob. 5.5RQCh. 5 - Explain the problems that denormalized tables may...Ch. 5 - Explain how the representation of weak entities...Ch. 5 - Explain how supertype and subtype entities are...Ch. 5 - Prob. 5.9RQCh. 5 - Prob. 5.10RQ
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