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 Name ID Name ID Name ID Product Product Type ID 1 Type Name Headset 1 ACME VR 1 Date Value 3306/01/23 521 3306/01/24 -250 Production 1 VR1000 1 1 0 No Product ACME VR ACME VR 1 2 0 No Product 3306/01/23 105 Production HR Finance Production 2 ACME Movies 3 0 No Product 3306/01/23 999 2 ACME Movies 4 2 MC9 2 Camera 3306/01/23 50

Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN:9780133594140
Author:James Kurose, Keith Ross
Publisher:James Kurose, Keith Ross
Chapter1: Computer Networks And The Internet
Section: Chapter Questions
Problem R1RQ: What is the difference between a host and an end system? List several different types of end...
icon
Related questions
Question

Explain how each of the following data anomalies could arise in this sample data:

  1 Update anomaly.
   2 Insertion anomaly.

     3   Deletion anomaly.
   

 


       

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
Name
ID
Name
ID
ID
Name
VR1000
Product Product
Type ID Type Name
1 Headset
1
1
ACME VR
ACME VR
ACME VR
1
1
1
0
No Product
Date Value
3306/01/23 521
3306/01/24 -250
3306/01/23 105
3306/01/23 999
3306/01/23 50
1
Production
Production
HR
Finance
Production
2
0
No Product
2
ACME Movies
3
0
No Product
MC9
2
ACME Movies
4
2
2
Camera
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 Name ID Name ID ID Name VR1000 Product Product Type ID Type Name 1 Headset 1 1 ACME VR ACME VR ACME VR 1 1 1 0 No Product Date Value 3306/01/23 521 3306/01/24 -250 3306/01/23 105 3306/01/23 999 3306/01/23 50 1 Production Production HR Finance Production 2 0 No Product 2 ACME Movies 3 0 No Product MC9 2 ACME Movies 4 2 2 Camera
Expert Solution
steps

Step by step

Solved in 2 steps

Blurred answer
Recommended textbooks for you
Computer Networking: A Top-Down Approach (7th Edi…
Computer Networking: A Top-Down Approach (7th Edi…
Computer Engineering
ISBN:
9780133594140
Author:
James Kurose, Keith Ross
Publisher:
PEARSON
Computer Organization and Design MIPS Edition, Fi…
Computer Organization and Design MIPS Edition, Fi…
Computer Engineering
ISBN:
9780124077263
Author:
David A. Patterson, John L. Hennessy
Publisher:
Elsevier Science
Network+ Guide to Networks (MindTap Course List)
Network+ Guide to Networks (MindTap Course List)
Computer Engineering
ISBN:
9781337569330
Author:
Jill West, Tamara Dean, Jean Andrews
Publisher:
Cengage Learning
Concepts of Database Management
Concepts of Database Management
Computer Engineering
ISBN:
9781337093422
Author:
Joy L. Starks, Philip J. Pratt, Mary Z. Last
Publisher:
Cengage Learning
Prelude to Programming
Prelude to Programming
Computer Engineering
ISBN:
9780133750423
Author:
VENIT, Stewart
Publisher:
Pearson Education
Sc Business Data Communications and Networking, T…
Sc Business Data Communications and Networking, T…
Computer Engineering
ISBN:
9781119368830
Author:
FITZGERALD
Publisher:
WILEY