
EBK CONCEPTS OF DATABASE MANAGEMENT
8th Edition
ISBN: 8220100706004
Author: Last
Publisher: Cengage Learning US
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Chapter 7, Problem 4RQ
To determine
Explain meaning of concurrent update.
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Given the following addresses, which two addresses conflict in the cache: The numb of locations in the cache is 2048, the cahche is indexed by address bits 15 to 5 and the tag bits are from 31 to 16.
(a) 0x0000 0100
(b) 0x0000 1400
(c) 0x0010 0100
(d) 0x0100 0140
5. RetailItem ClassWrite a class named RetailItem that holds data about an item in a retail store. The class should store the following data in attributes: item description, units in inventory, and price.
Once you have written the class, write a program that creates three RetailItem objects and stores the following data in them:
Description Units in Inventory PriceItem #1 Jacket 12 59.95Item #2 Designer Jeans 40 34.95Item #3 Shirt 20 24.95
Write a class named Patient that has attributes for the following data:
First name, middle name, and last name
Address, city, state, and ZIP code
Phone number
Name and phone number of emergency contact
The Patient class’s _ _init_ _ method should accept an argument for each attribute. The Patient class should also have accessor and mutator methods for each attribute.
Next, write a class named Procedure that represents a medical procedure that has been performed on a patient. The Procedure class should have attributes for the following data:
Name of the procedure
Date of the procedure
Name of the practitioner who performed the procedure
Charges for the procedure
The Procedure class’s _ _init_ _ method should accept an argument for each attribute. The Procedure class should also have accessor and mutator methods for each attribute.
Next, write a program that creates an instance of the Patient class, initialized with sample data. Then, create three instances of the Procedure class,…
Chapter 7 Solutions
EBK CONCEPTS OF DATABASE MANAGEMENT
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