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3 What are the two major differences between the accountant’s data and the business rules that were provided by Tshepo? For each difference, explain which option is better, and why

3 What are the two major differences between the accountant’s data and the business rules that were provided by Tshepo? For each difference, explain which option is better, and why

Database System Concepts
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
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Q.5.3 What are the two major differences between the accountant’s data and the
business rules that were provided by Tshepo? For each difference, explain which
option is better, and why

While the datamodel design process was still underway, an enterprising accountant started putting together data in a spreadsheet already. Tshepo applauded his enthusiasm, but he is worried about the integrity of the data, despite the fact that the accountant says his data is in first normal form already. Here is a sample of the spreadsheet data, in first normal form (underlined columns names indicate the composite primary key): Company Company Department Department Product Product Product Product Date Value Type ID Type Name Headset ID Name ID Name Production ID Name 3306/01/23 3306/01/24 3306/01/23 3306/01/23 3306/01/23 ACME VR 1 1 VR1000 1 521 ACME VR 1 Production No Product -250 ACME VR 2 HR No Product 105 2 ACME Movies 3 Finance No Product 999 2 ACME Movies 4 Production 2 MC9 Camera 50
Transcribed Image Text:While the datamodel design process was still underway, an enterprising accountant started putting together data in a spreadsheet already. Tshepo applauded his enthusiasm, but he is worried about the integrity of the data, despite the fact that the accountant says his data is in first normal form already. Here is a sample of the spreadsheet data, in first normal form (underlined columns names indicate the composite primary key): Company Company Department Department Product Product Product Product Date Value Type ID Type Name Headset ID Name ID Name Production ID Name 3306/01/23 3306/01/24 3306/01/23 3306/01/23 3306/01/23 ACME VR 1 1 VR1000 1 521 ACME VR 1 Production No Product -250 ACME VR 2 HR No Product 105 2 ACME Movies 3 Finance No Product 999 2 ACME Movies 4 Production 2 MC9 Camera 50
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