Database Systems: Design, Implementation, & Management
13th Edition
ISBN: 9781337627900
Author: Carlos Coronel, Steven Morris
Publisher: Cengage Learning
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Chapter 7, Problem 18RQ
Explanation of Solution
Difference between UNION and UNION ALL:
| UNION | UNION ALL |
| The UNION set operator is used to combine the output of two or more than two queries and produce a result. The produced result contains unique values. | The UNION ALL set operator is used to combine the output of two or more than two queries and produce a result. The produced result contains duplicate values. |
| Syntax: QUERY UNION QUERY; | Syntax: QUERY UNION ALL QUERY; |
|
Example: Consider two tables: The table “T1(ID, fruit_name)” contains rows with values (1, 'Mango' ), (1, 'Orange' ), (3, 'Grapes' )... |
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Assignment Instructions:
You are tasked with developing a program to use city data from an online database and generate a
city details report.
1) Create a new Project in Eclipse called "HW7".
2) Create a class "City.java" in the project and implement the UML diagram shown below and add
comments to your program.
3) The logic for the method "getCityCategory" of City Class is below:
a. If the population of a city is greater than 10000000, then the method returns "MEGA"
b. If the population of a city is greater than 1000000 and less than 10000000, then the
method returns "LARGE"
c. If the population of a city is greater than 100000 and less than 1000000, then the method
returns "MEDIUM"
d. If the population of a city is below 100000, then the method returns "SMALL"
4) You should create another new Java program inside the project. Name the program as
"xxxx_program.java”, where xxxx is your Kean username.
3) Implement the following methods inside the xxxx_program program
The main method…
CPS 2231 - Computer Programming – Spring 2025
City Report Application
-
Due Date:
Concepts: Classes and Objects, Reading from a file and generating report
Point value: 40 points.
The purpose of this project is to give students exposure to object-oriented design and programming
using classes in a realistic application that involves arrays of objects and generating reports.
Assignment Instructions:
You are tasked with developing a program to use city data from an online database and generate a
city details report.
1) Create a new Project in Eclipse called "HW7”.
2) Create a class "City.java" in the project and implement the UML diagram shown below and add
comments to your program.
3) The logic for the method "getCityCategory" of City Class is below:
a. If the population of a city is greater than 10000000, then the method returns "MEGA"
b. If the population of a city is greater than 1000000 and less than 10000000, then the
method returns "LARGE"
c. If the population of a city is greater…
Please calculate the average best-case IPC attainable on this code with a 2-wide, in-order, superscalar machine:
ADD X1, X2, X3
SUB X3, X1, 0x100
ORR X9, X10, X11
ADD X11, X3, X2
SUB X9, X1, X3
ADD X1, X2, X3
AND X3, X1, X9
ORR X1, X11, X9
SUB X13, X14, X15
ADD X16, X13, X14
Chapter 7 Solutions
Database Systems: Design, Implementation, & Management
Ch. 7 - Prob. 1RQCh. 7 - Explain why the following command would create an...Ch. 7 - What is a cross join? Give an example of its...Ch. 7 - What three join types are included in the outer...Ch. 7 - Using tables named T1 and T2, write a query...Ch. 7 - Prob. 6RQCh. 7 - Rewrite the following WHERE clause without the use...Ch. 7 - Explain the difference between an ORDER BY clause...Ch. 7 - Explain why the following two commands produce...Ch. 7 - What is the difference between the COUNT aggregate...
Ch. 7 - Prob. 11RQCh. 7 - Prob. 12RQCh. 7 - Prob. 13RQCh. 7 - Prob. 14RQCh. 7 - Prob. 15RQCh. 7 - What does it mean to say that SQL operators are...Ch. 7 - Prob. 17RQCh. 7 - Prob. 18RQCh. 7 - Prob. 19RQCh. 7 - Prob. 20RQCh. 7 - Given the employee information in Question 19,...Ch. 7 - Given the employee information in Question 19,...Ch. 7 - Prob. 23RQCh. 7 - Prob. 24RQCh. 7 - Prob. 25RQCh. 7 - What Oracle function should you use to calculate...Ch. 7 - What string function should you use to list the...Ch. 7 - Prob. 28RQCh. 7 - Given the structure and contents of the...Ch. 7 - Using the EMPLOYEE, JOB, and PROJECT tables in the...Ch. 7 - Write the SQL code that will produce the same...Ch. 7 - Prob. 4PCh. 7 - Write the SQL code to validate the ASSIGN_CHARGE...Ch. 7 - Using the data in the ASSIGNMENT table, write the...Ch. 7 - Prob. 7PCh. 7 - Prob. 8PCh. 7 - Prob. 9PCh. 7 - Prob. 10PCh. 7 - Generate a listing of all purchases made by the...Ch. 7 - Prob. 12PCh. 7 - Prob. 13PCh. 7 - Modify the query in Problem 13 to include the...Ch. 7 - Prob. 15PCh. 7 - Prob. 16PCh. 7 - Prob. 17PCh. 7 - Prob. 18PCh. 7 - Prob. 19PCh. 7 - Prob. 20PCh. 7 - Prob. 21PCh. 7 - Create a query to find the balance characteristics...Ch. 7 - Prob. 23PCh. 7 - Prob. 24PCh. 7 - Prob. 25PCh. 7 - Find the total value of the product inventory. The...Ch. 7 - Prob. 27PCh. 7 - Write a query to display the SKU (stock keeping...Ch. 7 - Prob. 29PCh. 7 - Prob. 30PCh. 7 - Prob. 31PCh. 7 - Prob. 32PCh. 7 - Prob. 33PCh. 7 - Prob. 34PCh. 7 - Prob. 35PCh. 7 - Prob. 36PCh. 7 - Prob. 37PCh. 7 - Prob. 38PCh. 7 - Prob. 39PCh. 7 - Prob. 40PCh. 7 - Prob. 41PCh. 7 - Prob. 42PCh. 7 - Prob. 43PCh. 7 - Prob. 44PCh. 7 - Prob. 45PCh. 7 - Prob. 46PCh. 7 - Prob. 47PCh. 7 - Prob. 48PCh. 7 - Prob. 49PCh. 7 - Prob. 50PCh. 7 - Prob. 51PCh. 7 - Prob. 52PCh. 7 - Prob. 53PCh. 7 - Prob. 54PCh. 7 - Prob. 55PCh. 7 - Prob. 56PCh. 7 - Prob. 57PCh. 7 - Prob. 58PCh. 7 - Prob. 59PCh. 7 - Prob. 60PCh. 7 - Prob. 61PCh. 7 - Prob. 62PCh. 7 - Prob. 63PCh. 7 - Prob. 64PCh. 7 - Prob. 65PCh. 7 - Prob. 66PCh. 7 - Prob. 67PCh. 7 - Prob. 68PCh. 7 - Prob. 69PCh. 7 - Prob. 70PCh. 7 - Prob. 71PCh. 7 - Prob. 72PCh. 7 - Prob. 73PCh. 7 - Prob. 74PCh. 7 - Prob. 75PCh. 7 - Prob. 76PCh. 7 - Prob. 77PCh. 7 - Prob. 78PCh. 7 - Prob. 79PCh. 7 - Prob. 80PCh. 7 - Prob. 81PCh. 7 - Prob. 82PCh. 7 - Prob. 83PCh. 7 - Prob. 84PCh. 7 - Prob. 85PCh. 7 - Prob. 86PCh. 7 - Prob. 88PCh. 7 - Prob. 89PCh. 7 - Prob. 90PCh. 7 - Prob. 91PCh. 7 - Prob. 92PCh. 7 - Prob. 93PCh. 7 - Prob. 94PCh. 7 - Prob. 95PCh. 7 - Prob. 96PCh. 7 - Prob. 97PCh. 7 - Prob. 98PCh. 7 - Prob. 99PCh. 7 - Prob. 100PCh. 7 - Prob. 101PCh. 7 - Prob. 102PCh. 7 - Prob. 103PCh. 7 - Prob. 104PCh. 7 - Prob. 105PCh. 7 - Prob. 106PCh. 7 - Prob. 107PCh. 7 - Prob. 108PCh. 7 - Prob. 109P
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