
Database Concepts (8th Edition)
8th Edition
ISBN: 9780134601533
Author: David M. Kroenke, David J. Auer, Scott L. Vandenberg, Robert C. Yoder
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Concept explainers
Textbook Question
Chapter 1, Problem 1.27RQ
Define the term referential integrity constraint. Give an example of a referential integrity constraint for the tables you created for question 1.11.
Expert Solution & Answer

Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
Compare the security services provided by a digital signature (DS) with those of a message authentication code (MAC). Assume that Oscar can observe all messages sent between Rina and Naseem. Oscar has no knowledge of any keys but the public one, in the case of DS. State whether DS and MAC protect against each attack and, if they do, how. The value auth(x) is computed with a DS or a MAC algorithm. In each scenario, assume the message M = x#####auth(x).
(Message integrity) Rina has the textual data x = “Transfer $1000 to Mark” to send to Naseem. To ensure the integrity of the data, Rina generates auth(x), forms a message M, and then sends M in cleartext to Naseem. Oscar intercepts the message and replaces “Mark” with “Oscar.” Will Naseem detect this in the case of either DS or MAC? If yes, how will Naseem detect it? If not, why?
(Replay) Rina has the textual data x = “Transfer $1000 to Mark” to send to Naseem. To ensure the integrity of the data, Rina generates auth(x), forms a message…
I need to resolve the following....You are trying to convince your boss that your company needs to invest in a license for MS-Project (project management software from Microsoft) before beginning a systems project. What arguments would you give her?
What are the four types of feasibility? what is the issues addressed by each feasibility component.
Chapter 1 Solutions
Database Concepts (8th Edition)
Ch. 1 - Prob. 1.1RQCh. 1 - Prob. 1.2RQCh. 1 - Prob. 1.3RQCh. 1 - Why is the study of database technology important?Ch. 1 - Prob. 1.5RQCh. 1 - Describe the purpose of a database.Ch. 1 - Prob. 1.7RQCh. 1 - Prob. 1.8RQCh. 1 - Prob. 1.9RQCh. 1 - Prob. 1.10RQ
Ch. 1 - Break the list in Figure 1-34 into two tables,...Ch. 1 - Show how the tables you created for question 1.11...Ch. 1 - Prob. 1.13RQCh. 1 - Prob. 1.14RQCh. 1 - Break the list in Figure 1-35 into tables, each...Ch. 1 - Describe in your own words and illustrate with...Ch. 1 - Prob. 1.18RQCh. 1 - Define the term database.Ch. 1 - Prob. 1.20RQCh. 1 - List the components of a database.Ch. 1 - Prob. 1.22RQCh. 1 - Prob. 1.23RQCh. 1 - Prob. 1.24RQCh. 1 - What is the purpose of a DBMS?Ch. 1 - List the specific functions of a DBMS.Ch. 1 - Define the term referential integrity constraint....Ch. 1 - Prob. 1.28RQCh. 1 - List the functions of a database application.Ch. 1 - Prob. 1.30RQCh. 1 - Prob. 1.31RQCh. 1 - Prob. 1.32RQCh. 1 - Prob. 1.33RQCh. 1 - Prob. 1.34RQCh. 1 - Prob. 1.35RQCh. 1 - Prob. 1.36RQCh. 1 - Prob. 1.37ECh. 1 - Prob. 1.38ECh. 1 - Prob. 1.39E
Additional Engineering Textbook Solutions
Find more solutions based on key concepts
Which of the following are illegal variable names in Python, and why? x 99bottles july2009 theSalesFigureForFis...
Starting Out with Python (4th Edition)
This optional Google account security feature sends you a message with a code that you must enter, in addition ...
SURVEY OF OPERATING SYSTEMS
CONCEPT QUESTIONS
15.CQ3 The ball rolls without slipping on the fixed surface as shown. What is the direction ...
Vector Mechanics for Engineers: Statics and Dynamics
17–1C A high-speed aircraft is cruising in still air. How does the temperature of air at the nose of the aircra...
Thermodynamics: An Engineering Approach
Assume a telephone signal travels through a cable at two-thirds the speed of light. How long does it take the s...
Electric Circuits. (11th Edition)
How does a computers main memory differ from its auxiliary memory?
Java: An Introduction to Problem Solving and Programming (8th Edition)
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, computer-science and related others by exploring similar questions and additional content below.Similar questions
- I would like to get ab example of a situation where Agile Methods might be preferable versus the traditional SDLC? What are the characteristics of this situation that give Agile Methods an advantage?arrow_forwardWhat is a functional decomposition diagram? what is a good example of a high level task being broken down into tasks in at least two lower levels (three levels in all).arrow_forwardWhat are the advantages to using a Sytems Analysis and Design model like the SDLC vs. other approaches?arrow_forward
- 3. Problem Description: Define the Circle2D class that contains: Two double data fields named x and y that specify the center of the circle with get methods. • A data field radius with a get method. • A no-arg constructor that creates a default circle with (0, 0) for (x, y) and 1 for radius. • A constructor that creates a circle with the specified x, y, and radius. • A method getArea() that returns the area of the circle. • A method getPerimeter() that returns the perimeter of the circle. • • • A method contains(double x, double y) that returns true if the specified point (x, y) is inside this circle. See Figure (a). A method contains(Circle2D circle) that returns true if the specified circle is inside this circle. See Figure (b). A method overlaps (Circle2D circle) that returns true if the specified circle overlaps with this circle. See the figure below. р O со (a) (b) (c)< Figure (a) A point is inside the circle. (b) A circle is inside another circle. (c) A circle overlaps another…arrow_forward1. Explain in detail with examples each of the following fundamental security design principles: economy of mechanism, fail-safe default, complete mediation, open design, separation of privilege, least privilege, least common mechanism, psychological acceptability, isolation, encapsulation, modularity, layering, and least astonishment.arrow_forwardSecurity in general means the protection of an asset. In the context of computer and network security, explore and explain what assets must be protected within an online university. What the threats are to the security of these assets, and what countermeasures are available to mitigate and protect the organization from such threats. For each of the assets you identify, assign an impact level (low, moderate, or high) for the loss of confidentiality, availability, and integrity. Justify your answers.arrow_forward
- Please include comments and docs comments on the program. The two other classes are Attraction and Entertainment.arrow_forwardObject-Oriented Programming In this separate files. ent, you'll need to build and run a small Zoo in Lennoxville. All classes must be created in Animal (5) First, start by building a class that describes an Animal at a Zoo. It should have one private instance variable for the name of the animal, and one for its hunger status (fed or hungry). Add methods for setting and getting the hunger satus variable, along with a getter for the name. Consider how these should be named for code clarity. For instance, using a method called hungry () to make the animal hungry could be used as a setter for the hunger field. The same logic could be applied to when it's being fed: public void feed () { this.fed = true; Furthermore, the getter for the fed variable could be named is Fed as it is more descriptive about what it answers when compared to get Fed. Keep this technique in mind for future class designs. Zoo (10) Now we have the animals designed and ready for building a little Zoo! Build a class…arrow_forward1.[30 pts] Answer the following questions: a. [10 pts] Write a Boolean equation in sum-of-products canonical form for the truth table shown below: A B C Y 0 0 0 1 0 0 1 0 0 1 0 0 0 1 1 0 1 0 0 1 1 0 1 0 1 1 0 1 1 1 1 0 a. [10 pts] Minimize the Boolean equation you obtained in (a). b. [10 pts] Implement, using Logisim, the simplified logic circuit. Include an image of the circuit in your report. 2. [20 pts] Student A B will enjoy his picnic on sunny days that have no ants. He will also enjoy his picnic any day he sees a hummingbird, as well as on days where there are ants and ladybugs. a. Write a Boolean equation for his enjoyment (E) in terms of sun (S), ants (A), hummingbirds (H), and ladybugs (L). b. Implement in Logisim, the logic circuit of E function. Use the Circuit Analysis tool in Logisim to view the expression, include an image of the expression generated by Logisim in your report. 3.[20 pts] Find the minimum equivalent circuit for the one shown below (show your work): DAB C…arrow_forward
- When using functions in python, it allows us tto create procedural abstractioons in our programs. What are 5 major benefits of using a procedural abstraction in python?arrow_forwardFind the error, assume data is a string and all variables have been declared. for ch in data: if ch.isupper: num_upper = num_upper + 1 if ch.islower: num_lower = num_lower + 1 if ch.isdigit: num_digits = num_digits + 1 if ch.isspace: num_space = num_space + 1arrow_forwardFind the Error: date_string = input('Enter a date in the format mm/dd/yyyy: ') date_list = date_string.split('-') month_num = int(date_list[0]) day = date_list[1] year = date_list[2] month_name = month_list[month_num - 1] long_date = month_name + ' ' + day + ', ' + year print(long_date)arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- Database Systems: Design, Implementation, & Manag...Computer ScienceISBN:9781285196145Author:Steven, Steven Morris, Carlos Coronel, Carlos, Coronel, Carlos; Morris, Carlos Coronel and Steven Morris, Carlos Coronel; Steven Morris, Steven Morris; Carlos CoronelPublisher:Cengage LearningDatabase Systems: Design, Implementation, & Manag...Computer ScienceISBN:9781305627482Author:Carlos Coronel, Steven MorrisPublisher:Cengage Learning
- A Guide to SQLComputer ScienceISBN:9781111527273Author:Philip J. PrattPublisher:Course Technology Ptr


Database Systems: Design, Implementation, & Manag...
Computer Science
ISBN:9781285196145
Author:Steven, Steven Morris, Carlos Coronel, Carlos, Coronel, Carlos; Morris, Carlos Coronel and Steven Morris, Carlos Coronel; Steven Morris, Steven Morris; Carlos Coronel
Publisher:Cengage Learning

Database Systems: Design, Implementation, & Manag...
Computer Science
ISBN:9781305627482
Author:Carlos Coronel, Steven Morris
Publisher:Cengage Learning

A Guide to SQL
Computer Science
ISBN:9781111527273
Author:Philip J. Pratt
Publisher:Course Technology Ptr
SQL Basics for Beginners | Learn SQL | SQL Tutorial for Beginners | Edureka; Author: edureka;https://www.youtube.com/watch?v=zbMHLJ0dY4w;License: Standard YouTube License, CC-BY