DATABASE SYSTEM CONCEPTS LCPO
7th Edition
ISBN: 9781265586577
Author: SILBERSCHATZ
Publisher: MCG
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Chapter 5, Problem 20E
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Limits of nesting triggers:
- The
database objects which are useful to perform some predefined action for automatic execution is known as triggers. - The execution of actions needed when the users try to do execute data modification commands like, insert, delete and update on specific tables.
- The triggers are useful because it maintains the data integrity of tables in database.
- The triggers are very hard to maintain and difficult to find...
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Write a program that simulates a Magic 8 Ball, which is a fortune-telling toy that displays a random response to a yes or no question. In the student sample programs for this book, you will find a text file named 8_ball_responses.txt. The file contains 12 responses, such as “I don’t think so”, “Yes, of course!”, “I’m not sure”, and so forth. The program should read the responses from the file into a list. It should prompt the user to ask a question, then display one of the responses, randomly selected from the list. The program should repeat until the user is ready to quit.
Contents of 8_ball_responses.txt:
Yes, of course! Without a doubt, yes. You can count on it. For sure! Ask me later. I'm not sure. I can't tell you right now. I'll tell you after my nap. No way! I don't think so. Without a doubt, no. The answer is clearly NO.
(You can access the Computer Science Portal at www.pearsonhighered.com/gaddis.)
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DATABASE SYSTEM CONCEPTS LCPO
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