Database Systems: Design Implementation & Management
11th Edition
ISBN: 9781305850378
Author: Coronel
Publisher: Cengage
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Chapter 15, Problem 41RQ
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In Oracle, database schema refers to the database system structure that is outlined in a formal language assisted by the database management system.
- The term database schema is also known as “SQL Schema”.
- Schema is generally a structure that consists of definition of objects constructed by a user, like views, base tales, and constraints as part of a database...
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A Personal Address Book application program allows the user to add, delete, search, save, and
load contact information. The program separates the user interface (command-line) and the
internal processing subsystem. The internal processing system consists of the following classes:
•
•
Contact Manager (responsible for add and delete operations)
Contact Finder (responsible for the search operation)
pataManager (responsible for save and load operations)
a. What design pattern can be used to implement the user interface? Explain your answer using a
class diagram for the entire system.
b. Draw a UML sequence diagram to show the behavioral view of the Personal Address Book
program, demonstrating what happens when a user enters new contact information.
A system comprises three components: A, B, and C. Calling A requires calling B, and calling B
requires calling A. Component C is responsible for dissimilar tasks T#1, #2, and T#3.
a. Comment on the modifiability of this system. What problems do you see in this system, and
how would you solve them?
b. Suppose that T#1 is performed by both component A and C. What does this indicate about A
and C? How would you solve this problem?
Please answer questions from number 1 to 3 if these questions in the image provided below(NOTE: THESE QUESTIONS ARE NOT GRADED!)
Chapter 15 Solutions
Database Systems: Design Implementation & Management
Ch. 15 - Prob. 1RQCh. 15 - Prob. 2RQCh. 15 - Prob. 3RQCh. 15 - Prob. 4RQCh. 15 - Suppose that you are a DBA. What data dimensions...Ch. 15 - How and why did database management systems become...Ch. 15 - Using a single sentence, explain the role of...Ch. 15 - Prob. 8RQCh. 15 - Prob. 9RQCh. 15 - Prob. 10RQ
Ch. 15 - Prob. 11RQCh. 15 - Prob. 12RQCh. 15 - Prob. 13RQCh. 15 - Prob. 14RQCh. 15 - Prob. 15RQCh. 15 - Prob. 16RQCh. 15 - Prob. 17RQCh. 15 - Prob. 18RQCh. 15 - What DBA activities support end users?Ch. 15 - Prob. 20RQCh. 15 - Prob. 21RQCh. 15 - Prob. 22RQCh. 15 - Prob. 23RQCh. 15 - Prob. 24RQCh. 15 - Prob. 25RQCh. 15 - Prob. 26RQCh. 15 - Prob. 27RQCh. 15 - Prob. 28RQCh. 15 - Prob. 29RQCh. 15 - Prob. 30RQCh. 15 - Define the concept of a data dictionary, and...Ch. 15 - Using SQL statements, give some examples of how...Ch. 15 - Prob. 33RQCh. 15 - Prob. 34RQCh. 15 - Prob. 35RQCh. 15 - What tool is used in Oracle to create users?Ch. 15 - Prob. 37RQCh. 15 - Prob. 38RQCh. 15 - Prob. 39RQCh. 15 - Prob. 40RQCh. 15 - Prob. 41RQ
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