Database Concepts (8th Edition)
8th Edition
ISBN: 9780134601533
Author: David M. Kroenke, David J. Auer, Scott L. Vandenberg, Robert C. Yoder
Publisher: PEARSON
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Chapter 7, Problem 7.4RQ
Explanation of Solution
Trigger:
In a
- It can be executed before or after the “SQL” commands which use the “INSERT”, “UPDATE” or “DELETE” operations or once for each modified row.
- If a trigger event has occurs, the trigger’s function will called at the time of handling the event...
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What is a trigger, and how is it used?
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Chapter 7 Solutions
Database Concepts (8th Edition)
Ch. 7 - Prob. 7.1RQCh. 7 - Prob. 7.2RQCh. 7 - Prob. 7.3RQCh. 7 - Prob. 7.4RQCh. 7 - Prob. 7.5RQCh. 7 - Prob. 7.6RQCh. 7 - Prob. 7.7RQCh. 7 - Prob. 7.8RQCh. 7 - Prob. 7.9RQCh. 7 - Prob. 7.10RQ
Ch. 7 - Prob. 7.11RQCh. 7 - Prob. 7.12RQCh. 7 - Prob. 7.13RQCh. 7 - Prob. 7.14RQCh. 7 - Prob. 7.15RQCh. 7 - Prob. 7.16RQCh. 7 - Prob. 7.17RQCh. 7 - Prob. 7.18RQCh. 7 - Prob. 7.19RQCh. 7 - Prob. 7.20RQCh. 7 - Prob. 7.21RQCh. 7 - Prob. 7.22RQCh. 7 - Prob. 7.23RQCh. 7 - Prob. 7.24RQCh. 7 - Prob. 7.25RQCh. 7 - Prob. 7.26RQCh. 7 - Prob. 7.27RQCh. 7 - Prob. 7.28RQCh. 7 - Prob. 7.29RQCh. 7 - Prob. 7.30RQCh. 7 - Prob. 7.31RQCh. 7 - Prob. 7.32RQCh. 7 - Prob. 7.33RQCh. 7 - Prob. 7.34RQCh. 7 - Prob. 7.35RQCh. 7 - Prob. 7.36RQCh. 7 - Show a snippet of PHP code for creating a...Ch. 7 - Show a snippet of PHP code for displaying the...Ch. 7 - Show a snippet of PHP code for disconnecting from...Ch. 7 - Prob. 7.40RQCh. 7 - Prob. 7.41RQCh. 7 - Prob. 7.42RQCh. 7 - Prob. 7.43RQCh. 7 - Prob. 7.44RQCh. 7 - Prob. 7.45RQCh. 7 - Prob. 7.46RQCh. 7 - Prob. 7.47RQCh. 7 - What is the purpose of the FOR XML expression in...Ch. 7 - Prob. 7.49RQCh. 7 - Prob. 7.50RQ
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- What are procedures?arrow_forwardExplain disjoint versus overlapping restrictions.arrow_forwardDatabase Management Jill Bill Marketplace is a business located in Florida. Within the JBM compound, you can purchase many types of products that are related to a specific category, for example, books or antiques. JBN does not own any of the stalls that sell products, rather they rent them out to small vendors. Each vendor has to pay a monthly fee to use the Marketplace. JBM products are available to different customers who sell their products daily. Each category type (e.g. books ) is managed by a particular supervisor. A customer will order their selected product in terms of the amount from that vendor, who is also free to apply discounts on any product in his store. Other than category supervisors there are other staff that manages different departments in the mall, but they all report to two marketplace managers. The small vendors will report to the category managers on the nature of their stock and if and when restocking is required. All category managers report to the third…arrow_forward
- What exactly is the index? What are the many sorts of indices?arrow_forwardDatabase administrators are responsible for backing up the database, whereas users are responsible for doing so.person in charge of the server's administrationarrow_forwardWhat tests database triggers and procedures?arrow_forward
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