Modern Database Management
13th Edition
ISBN: 9780134792293
Author: Hoffer
Publisher: PEARSON
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Chapter 8, Problem 8.67PAE
Problems and Exercises 8-65i5 through 8-68 refer to the large Pine Valley Furniture Company data set provided with the text.
8-67. Consider the EER diagram for Pine Valley Furniture shown in Figure 3-12. Figure 8-15 looks at a portion of that EER diagram.
Figure 8-15 Figure for Problem and Exercise 8-67
Let’s make a few assumptions about the average usage of the system:
- There are 60,000 customers, and of these, 85 percent represent regular accounts and 15 percent national accounts.
- Currently, the system stores 2,500,000 orders, although this number is constantly changing.
- Each order has an average of 30 products.
- There are 5,000 products.
- Approximately 1,500 orders are placed per hour.
- Based on these assumptions, draw a usage map for this portion of the EER diagram.
- Management would like employees only to use this
database Do you see any opportunities for denormalization?
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Chapter 8 Solutions
Modern Database Management
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