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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Textbook Question
Chapter 3, Problem 3.18RQ
Write an SQL statement to display the breed, type, and DOB of all pets having the type Dog.
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Students have asked these similar questions
Design a dynamic programming algorithm for the Longest Alternating Subsequence problem
described below:
Input: A sequence of n integers
Output: The length of the longest subsequence where the numbers alternate between being larger and
smaller than their predecessor
The algorithm must take O(n²) time. You must also write and explain the recurrence.
Example 1:
Input: [3, 5, 4, 1, 3, 6, 5, 7, 3, 4]
Output: 8 ([3, 5, 4, 6, 5, 7, 3, 4])
Example 2:
Input: [4,7,2,5,8, 3, 8, 0, 4, 7, 8]
Output: 8 ([4, 7, 2, 5, 3, 8, 0,4])
(Take your time with this for the subproblem for this one)
Design a dynamic programming algorithm for the Coin-change problem described below:
Input: An amount of money C and a set of n possible coin values with an unlimited supply of each
kind of coin.
Output: The smallest number of coins that add up to C exactly, or output that no such set exists.
The algorithm must take O(n C) time. You must also write and explain the recurrence.
Example 1:
Input: C24, Coin values = = [1, 5, 10, 25, 50]
Output: 6 (since 24 = 10+ 10+1+1 +1 + 1)
Example 2:
Input: C = 86, Coin values = [1, 5, 6, 23, 35, 46, 50]
Output: 2 (since 86 = 46+35+5)
Design a dynamic programming algorithm for the Longest Common Subsequence problem de-
scribed below
Input: Two strings x = x1x2 xm and y = Y1Y2... Yn
Output: The length of the longest subsequence that is common to both x and y.
.
The algorithm must take O(m n) time. You must also write and explain the recurrence.
(I want the largest k such that there are 1 ≤ i₁ < ... < ik ≤ m and 1 ≤ j₁ < ... < jk ≤ n such that
Xi₁ Xi2 Xik = Yj1Yj2 ··· Yjk)
Example 1:
Input: x = 'abcdefghijklmnopqrst' and y = 'ygrhnodsh ftw'
Output: 6 ('ghnost' is the longest common subsequence to both strings)
Example 2:
Input: x = 'ahshku' and y = ‘asu'
Output: 3 ('asu' is the longest common subsequence to both strings)
Chapter 3 Solutions
Database Concepts (8th Edition)
Ch. 3 - Prob. 3.1RQCh. 3 - What is a data sublanguage?Ch. 3 - Prob. 3.3RQCh. 3 - Prob. 3.4RQCh. 3 - Prob. 3.5RQCh. 3 - Why do some standard SQL-92 statements fail to run...Ch. 3 - Use the following tables for your answers to...Ch. 3 - Write an SQL CREATE TABLE statement to create the...Ch. 3 - Prob. 3.9RQCh. 3 - Prob. 3.10RQ
Ch. 3 - Prob. 3.11RQCh. 3 - Is PET or PET_2 a better design? Explain your...Ch. 3 - Prob. 3.13RQCh. 3 - Prob. 3.14RQCh. 3 - Prob. 3.15RQCh. 3 - Prob. 3.16RQCh. 3 - Prob. 3.17RQCh. 3 - Write an SQL statement to display the breed, type,...Ch. 3 - Prob. 3.19RQCh. 3 - Prob. 3.20RQCh. 3 - Write an SQL statement to display the breed, type,...Ch. 3 - Write an SQL statement to display the name, breed,...Ch. 3 - Write an SQL statement to display the pet ID,...Ch. 3 - Prob. 3.24RQCh. 3 - Prob. 3.25RQCh. 3 - Write an SQL statement to display the name and...Ch. 3 - Prob. 3.27RQCh. 3 - Write an SQL statement to count the number of...Ch. 3 - Write an SQL statement to count the number of...Ch. 3 - Prob. 3.30RQCh. 3 - Prob. 3.31RQCh. 3 - Prob. 3.32RQCh. 3 - Prob. 3.33RQCh. 3 - Answer question 3.33, but do not consider any pet...Ch. 3 - Write an SQL statement to display the last name,...Ch. 3 - Write an SQL statement to display the last name,...Ch. 3 - Write SQL statements to (1) create the BREED...Ch. 3 - Prob. 3.38RQCh. 3 - Prob. 3.39RQCh. 3 - Prob. 3.40RQCh. 3 - Write an SQL statement to display the...Ch. 3 - Write SQL statements to add three new rows to the...Ch. 3 - Write SQL statements to add three new rows to the...Ch. 3 - Write an SQL statement to change the value of Std....Ch. 3 - Explain what will happen if you leave the WHERE...Ch. 3 - Prob. 3.46RQCh. 3 - Prob. 3.47RQCh. 3 - Prob. 3.48RQ
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