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A weak entity set can always be made into a strong entity set by adding to its attributes the primary-key attributes of its identifying entity set. Outline what sort of redundancy will result if we do so.
Visit the Amazon website (www.amazon.com) and search for a product of interest to you.Develop a database schema that defines the selected product’s attributes. What information would be useful to include so that this item can be compared to other pro..
diameter and circumference Set c1's radius to 4 Display c1's radius, area, diameter and circumference Execute c1 = c1 + c2 Display c1's radius, area, diameter and circumference Display c2's radius, area, diameter and circumference.
For drawings, you may use your word-processing drawing tools, graphic applications, or scanned hand drawings and insert them in the main document. Create a zip file containing your document and source code files. Show all of your work.
How can engineers help avoid catastrophes such as the Jonestown flood, Chernobyl, the Tacoma Narrows Bridge, the Kansas City hotel walkway, Challenger and Colombia? Are there any common root causes for these events? Can you plan for failure? Can ..
Be sure to state your business sector. Then, explain how the IT diffusion models may affect it.
In your comparison, be sure to include an explanation of one way hashtables are similar to your selected data structure and one way in which they are different.
Can a language have no reserved words? That is, suppose every reserved word (such as if and for) were merely predefined identifier. Can such a language exist? Explain.
For each of the following function de?nitions, give the graph of the function. Say whether this is a partial function or a total function on the integers. If the function is partial, say where the function is de?ned and unde?ned.
write a program that reads a file of computer data names computers.txt. creates an array of Computer objects.
Write an application that displays the factorial for every integer value from 1 to 10. A factorial of a number is the product of that number multiplied by each positive integer lower than it. For example, 4 factorial is 4 * 3 * 2 * 1, or 24.
Using your book and the Internet, find an article about one of of the following technologies: GSM, ISDN, CDMA, TDMA, Bluetooth, and 802.11x, summarize the article in your own words, and discuss why an investigator should care about the technology ..
Briefly compare and contrast the four techniques for analyzing the costs and benefits of a proposed system. What do you see as particular strengths and weakness of each method?
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