Share a real-world example of each of the following relationships with the class: (1) one-to-one relationships;...
Share a real-world example of each of the following relationships with the class: (1) one-to-one relationships; (2) one-to-many relationships; (3) many-to-many relationships. Which of these do you think is the most common? Which does a relational database handle most easily?
Your main response should respond directly to the question, using textbook theory and your own experiences or research to back up your responses.
Homework Answers
Entity-Relationship (E-R) Diagram
The relationship between the entities, we called Entity-Relationship (E-R) Diagram. E-R Diagram is a specialized graphics model that provides a relationship between entities in an information system.
1. One-to-one relationship:
In this one individual record of one table is related to one individual record of other tables.
Examples:
- one employee can be given one loan only.
- A teacher may be in charge of a class and each class must be in charge of by one teacher.
- A student has one and only one report card and each report card is owned by one and only one student.
2. One-to-many relationship:
In this one individual record in one table is related to many records of other tables.
Examples:
- One employee can be given many loans.
- A student can borrow some books from library and a book in the library may be borrowed by at most a student.
- A class is formed by a group of at least one student and each student is allocated to one and only one class.
3. Many-to-many relationship:
In this many records of one table are related to many records of other tables.
Examples:
- One employee can be given many loans and one loan can belong to many employees together.
- A student enrolls in at least one course and a course is enrolled by at least one student.
- A student may apply for more that one scholarship and each scholarship may receive some applications from student.
One-to-many relationship diagram is the most common diagram because it's simple and we can see it in different fields and areas.
Many-to-many relationship diagram is capable to handle the database in most easy was because it establishes relations between entities in both directions in many way.
Add Answer to:
Share a real-world example of each of the following
relationships with the class: (1) one-to-one relationships;...
Think about the sales process at a store you have shopped at recently (online or in...
Think about the sales process at a store you have shopped at recently (online or in person). What are some business rules that provided internal controls over that process? Your main response should respond directly to the question, using textbook theory and your own experiences or research to back up your responses. Please post your first response by Saturday of the week. Your initial response should be at least 200 words
What are some reasons why the accountants should be involved in the process of developing and...
What are some reasons why the accountants should be involved in the process of developing and reviewing the bill of materials? What would be some risks of not having them involved? Your main response should respond directly to the question, using textbook theory and your own experiences or research to back up your responses. Your initial response should be at least 200 words.
Respond to the following: In the real world, you use databases every day: when you shop...
Respond to the following: In the real world, you use databases every day: when you shop online, stream television, watch sports, save photos to your phone, use social media, and perform many other ordinary tasks. Pick one of these examples (or one of your own, if you prefer), and address the following: How could this service’s use of databases be improved upon, in your opinion? How do you think this database may be structured, and what changes could...
provide real-world examples to support your explanation, including one personal example from your own experiences.
provide real-world examples to support your explanation, including one personal example from your own experiences.
Using the textbook, Topic Materials, and your own research, write a 100-250 word response to each...
Using the textbook, Topic Materials, and your own research, write a 100-250 word response to each question below. Cite the sources used for answering each question, and include real-world examples in the answer to each question. Define a tuple. How and where does a tuple fit into relational database theory? Why is this an important concept to understand? How does an object-oriented database management system (OODMS) compare to a relational database management system (RDBMS)? What are the key features of...
1)Define the "placebo effect" .t Name at least one real world example of the placeb effect...
1)Define the "placebo effect" .t Name at least one real world example of the placeb effect making a big difference. 2)6vsing the example from the question above, îdesign a way to diminish the placebo effect on the results. 3) Explain the problem of the "False Positive ton any real world test. 4)Describe any example of a "bias" that you noticed in your own outlook on the world.
Both Classical and Keynesian Theories about the relationships between real GDP and the price level hinge on specifi...
Both Classical and Keynesian Theories about the relationships between real GDP and the price level hinge on specific assumptions. In your initial post to this discussion, address the following prompt based on what you've learned in this module about the assumptions and criticisms of Classical and Keynesian Economic Theories: Which approach appears to best explain the current economy? Provide support for either theory. In addition to posting your own response to the question posed, you are required to read and...
Globalization represents the opportunity to deliver improved value to end customers by developing world-class supply relationships...
Globalization represents the opportunity to deliver improved value to end customers by developing world-class supply relationships in terms of cost, quality, delivery, and performance. More and more buyers have to learn to develop a supply base in more than one country in order to remain competitive in the complex and dynamic global business environment. Identify a company of your choice (in a vehicle- manufacturing industry) on which you will base your study. Write a detailed report on the...
Principles of Macroeconomics Discussion: Macropolicy Please respond with a minimum of 100 words We learned about a numbe...
Principles of Macroeconomics Discussion: Macropolicy Please respond with a minimum of 100 words We learned about a number of real world complications that make monetary and fiscal policy more challenging than simple theory would suggest. Given the state of the economy and the causes of that state—think back to earlier discussions about the current economy—what should be the appropriate mix of fiscal and monetary policy, from a Keynesian perspective? From a neoclassical perspective? Which makes the most sense to you?...
Discussion 1: Framework This week, compose a 1-2 paragraph response to ONE of the following questions....
Discussion 1: Framework This week, compose a 1-2 paragraph response to ONE of the following questions. Click on the discussion forum, and choose the question you wish to answer. Explore the other question answers when you respond to your peers. 1. Explain how you could incorporate parts of the framework for pathophysiology in patient charting (Chapter 1). 2. Give an example of how the body adapts to stress (Chapter 2). 3. Explain the mechanism of cell injury and give an...
1)Define the "placebo effect" .t Name at least one real world example of the placeb effect making a big difference. 2)6vsing the example from the question above, îdesign a way to diminish the placebo effect on the results. 3) Explain the problem of the "False Positive ton any real world test. 4)Describe any example of a "bias" that you noticed in your own outlook on the world.
Both Classical and Keynesian Theories about the relationships between real GDP and the price level hinge on specific assumptions. In your initial post to this discussion, address the following prompt based on what you've learned in this module about the assumptions and criticisms of Classical and Keynesian Economic Theories: Which approach appears to best explain the current economy? Provide support for either theory. In addition to posting your own response to the question posed, you are required to read and...
Discussion 1: Framework This week, compose a 1-2 paragraph response to ONE of the following questions. Click on the discussion forum, and choose the question you wish to answer. Explore the other question answers when you respond to your peers. 1. Explain how you could incorporate parts of the framework for pathophysiology in patient charting (Chapter 1). 2. Give an example of how the body adapts to stress (Chapter 2). 3. Explain the mechanism of cell injury and give an...
Most questions answered within 3 hours.
-
Oakdale Fashions, Inc. had $245,000 in 2018 taxable income.
Using the tax schedule in Table 2.3...
asked 4 seconds ago -
The marketing class at CSUS had an average score of 150. An
educational analyst determined that...
asked 1 hour ago -
Justin Case has purchased a $250 000 home by putting 20 % down
and taking out...
asked 1 hour ago -
1. In a labor market, marginal cost for a firm is
____________.
a. recruiting cost
b....
asked 2 hours ago -
On January 1, 2019, ABC Company issued $60,000,000 of 20-year,
10.5% bonds when the market rate...
asked 2 hours ago -
39.4% of US homes continue to use a landline in addition to cell
phone service. 3...
asked 3 hours ago -
Starting with benzene, synthesize 1-phenyl-1-butyne.
Show intermediates and reagents.
asked 3 hours ago -
Create a 32-run crossed array design with six control factors
and two noise factors such that...
asked 4 hours ago -
A 500g sample of sand from source A has the following amounts
retained on each sieve....
asked 4 hours ago -
In
your own words, please explain the essay by John Keynes wrote "The
End of Laissez...
asked 4 hours ago -
How are the matrix and pixels related? Why are smaller
pixels better for diagnostic quality?
asked 4 hours ago -
2. An AC generator has 80 rectangular loops on
its armature. Each loop is 11 cm...
asked 4 hours ago