EBK DATABASE CONCEPTS
7th Edition
ISBN: 9780133777840
Author: AUER
Publisher: VST
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Textbook Question
Chapter 3, Problem 3.28RQ
Write an SQL statement to count the number of pets.
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Check out a sample textbook solutionStudents have asked these similar questions
PATHS is a table that contains information about paths on a number line. The
structure of PATHS is as follows, where x1 and x2 represent that there is a path
from Coordinate x1 to Coordinate x2 (You can't move from Coordinate x2 to
Coordinate x1 ).
NAME
ΤΥΡE
NULLABLE
X1
INT
FALSE
X2
INT
FALSE
Problem
Please write an SQL statement that returns the beginning and end point of each
path in PATHS . Sort them by the value of the beginning point in ascending order.
Constraints
• In the case where a direct path from Coordinate a to Coordinate b is
available, no path from Coordinate b to Coordinate a will be given.
|x1-x2| = 1
• No path will overlap with one another.
Example
Suppose that PATHS is as follows:
x1
x2
1
2
2
3
4
7
7
6
This table can be visualized as follows:
START
END
END
START
7
8.
9
Therefore, your SQL statement must return the following:
start
end
1
4
8
6
write SQL code that involve calculation by using if else statement
Write the appropriate SQL statement for the following:
Chapter 3 Solutions
EBK DATABASE CONCEPTS
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 - Prob. 3.23RQCh. 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 - Prob. 3.44RQCh. 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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