Computer Science: An Overview (13th Edition) (What's New in Computer Science)
13th Edition
ISBN: 9780134875460
Author: Glenn Brookshear, Dennis Brylow
Publisher: PEARSON
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Textbook Question
Chapter 9, Problem 14CRP
Answer Problem 13 using SQL.
PROBLEM 13
13. Using the commands SELECT, PROJECT, and JOIN, write a sequence of instructions to answer each of the following questions about parts and their manufacturers in terms of the following
Part relation
| PartName | Weight |
| Bolt 2X | 1 |
| Bolt 2Z | 1.5 |
| Nut V5 | 0.5 |
Manufacturer relation
| CompanyName | PartName | Cost |
| Company X | Bolt 2Z | .03 |
| Company X | Nut V5 | .01 |
| Company Y | Bolt 2X | .02 |
| Company Y | Nut V5 | .01 |
| Company Y | Bolt 2Z | .04 |
| Company Z | Nut V5 | .01 |
- a. Which companies make Bolt 2Z?
- b. Obtain a list of the parts made by Company X along with each part’s cost.
- c. Which companies make a part with weight 1?
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Chapter 9 Solutions
Computer Science: An Overview (13th Edition) (What's New in Computer Science)
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