Database Concepts (7th Edition)
7th Edition
ISBN: 9780133544626
Author: David M. Kroenke, David J. Auer
Publisher: PEARSON
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Textbook Question
Chapter 2, Problem 2.21RQ
Explain three possible interpretations of a null value.
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For this question you will perform two levels of quicksort on an array containing these numbers:
59 41 61 73 43 57 50 13 96 88 42 77 27 95 32 89
In the first blank, enter the array contents after the top level partition.
In the second blank, enter the array contents after one more partition of the left-hand subarray resulting from the first partition.
In the third blank, enter the array contents after one more partition of the right-hand subarray resulting from the first partition.
Print the numbers with a single space between them.
Use the algorithm we covered in class, in which the first element of the subarray is the partition value.
Question 1 options:
Blank # 1
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Blank # 3
1. Transform the E-R diagram into a set of relations.
Country_of
Agent ID
Agent H
Holds
Is_Reponsible_for
Consignment
Number
$ Value
May Contain
Consignment
Transports
Container
Destination
Ф
R
Goes Off
Container
Number
Size
Vessel
Voyage
Registry
Vessel ID
Voyage_ID
Tonnage
Chapter 2 Solutions
Database Concepts (7th Edition)
Ch. 2 - Prob. 2.1RQCh. 2 - Define the term entity, and give an example of an...Ch. 2 - Prob. 2.3RQCh. 2 - Prob. 2.4RQCh. 2 - Prob. 2.5RQCh. 2 - Prob. 2.6RQCh. 2 - Prob. 2.7RQCh. 2 - Prob. 2.8RQCh. 2 - Prob. 2.9RQCh. 2 - Define the term unique key and give an example.
Ch. 2 - Prob. 2.11RQCh. 2 - Prob. 2.12RQCh. 2 - Prob. 2.13RQCh. 2 - Describe four uses of a primary key.Ch. 2 - Prob. 2.15RQCh. 2 - Prob. 2.16RQCh. 2 - Prob. 2.17RQCh. 2 - Explain the term foreign key, and give an example.Ch. 2 - Prob. 2.19RQCh. 2 - Prob. 2.20RQCh. 2 - Explain three possible interpretations of a null...Ch. 2 - Give an example of a null value (other than one...Ch. 2 - Prob. 2.23RQCh. 2 - Prob. 2.24RQCh. 2 - Prob. 2.25RQCh. 2 - Prob. 2.26RQCh. 2 - Prob. 2.27RQCh. 2 - Define the term primary key in terms of functional...Ch. 2 - Prob. 2.31RQCh. 2 - Examine the data in the Veterinary Office...Ch. 2 - Prob. 2.33RQCh. 2 - Describe a modification problem that occurs when...Ch. 2 - Prob. 2.35RQCh. 2 - Prob. 2.36RQCh. 2 - Prob. 2.37RQCh. 2 - Apply the normalization process to the Veterinary...Ch. 2 - Prob. 2.39ECh. 2 - Prob. 2.40E
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