EBK CONCEPTS OF DATABASE MANAGEMENT
EBK CONCEPTS OF DATABASE MANAGEMENT
9th Edition
ISBN: 9781337670494
Author: Last
Publisher: Cengage Learning
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Chapter 3, Problem 14CATC
To determine

To Write SQL query to obtain the reservation ID, trip name, customer last name, customer first name, and the total cost for all the reservations where the number of persons is greater than four. Calculating the total cost of trip by adding the trip price plus other fees and multiplying the result by the number of persons included in the reservations and name it as TotalCost.

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Draw a system/level-0 diagram for this scenario: You are developing a new customer relationship management system for the BEC store, which rents out movies to customers. Customers will provide comments on new products, and request rental extensions and new products, each of which will be stored into the system and used by the manager for purchasing movies, extra copies, etc. Each month, one employee of BEC will select their favorite movie pick of that week, which will be stored in the system. The actual inventory information will be stored in the Entertainment Tracker system, and would be retrieved by this new system as and when necessary. Example of what a level-0 diagram looks like is attached.
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Draw a level-0 diagram for this scenario: You are developing a new customer relationship management system for the BEC store, which rents out movies to customers. Customers will provide comments on new products, and request rental extensions and new products, each of which will be stored into the system and used by the manager for purchasing movies, extra copies, etc. Each month, one employee of BEC will select their favorite movie pick of that week, which will be stored in the system. The actual inventory information will be stored in the Entertainment Tracker system, and would be retrieved by this new system as and when necessary.

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EBK CONCEPTS OF DATABASE MANAGEMENT

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