DATABASE SYSTEM CONCEPTS (LOOSELEAF)
7th Edition
ISBN: 9781260515046
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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Hands-On Assignments Part II
Assignment 1-5: Querying the DoGood Donor Database
Review the DoGood Donor data by writing and running SQL statements to perform the following
tasks:
1. List each donor who has made a pledge and indicated a single lump sum payment. Include
first name, last name, pledge date, and pledge amount.
2. List each donor who has made a pledge and indicated monthly payments over one year.
Include first name, last name, pledge date, and pledge amount. Also, display the monthly
payment amount. (Equal monthly payments are made for all pledges paid in monthly
payments.)
3. Display an unduplicated list of projects (ID and name) that have pledges committed. Don't
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4. Display the number of pledges made by each donor. Include the donor ID, first name, last
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5. Display all pledges made before March 8, 2012. Include all column data from the
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Chapter 5 Solutions
DATABASE SYSTEM CONCEPTS (LOOSELEAF)
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