Principles of Information Systems (MindTap Course List)
13th Edition
ISBN: 9781337516945
Author: STAIR
Publisher: Cengage
expand_more
expand_more
format_list_bulleted
Concept explainers
Expert Solution & Answer
Chapter 5, Problem 13RQ
Explanation of Solution
Projecting: It is a type of manipulating data by eliminating columns in a table.
Joining: It is a type of manipulating data by combining two or more tables.
Difference between projecting and joining:
| Projecting | Joining |
| It is one of the types of manipulating data by eliminating columns in a table. |
It is one of the types of manipulating data by combining two or more tables. |
|
If the user want to create new table by eliminating certain columns of old table then the user can use projection concept... |
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
How does a stock model work and what does it mean?
What are the four distinct categories of feasibility? Which kind is more concerned with overall cost of ownership? Which form is mainly affected by users?( 10 Marks)
For question 4.17, provide an example of a business rule from your job.
Chapter 5 Solutions
Principles of Information Systems (MindTap Course List)
Ch. 5.1 - Prob. 1RQCh. 5.1 - Which attribute would you designate as the primary...Ch. 5.1 - Prob. 1CTQCh. 5.1 - Prob. 2CTQCh. 5.2 - Prob. 1RQCh. 5.2 - Prob. 2RQCh. 5.2 - Prob. 1CTQCh. 5.2 - Prob. 2CTQCh. 5.3 - Prob. 1RQCh. 5.3 - Prob. 2RQ
Ch. 5.3 - What additional questions need to be answered...Ch. 5.3 - Prob. 2CTQCh. 5.4 - Prob. 1RQCh. 5.4 - Telefonica Brasil is one of the largest...Ch. 5.4 - Prob. 1CTQCh. 5.4 - Prob. 2CTQCh. 5.5 - Prob. 1RQCh. 5.5 - Prob. 2RQCh. 5.5 - Why is it unlikely that a traditional SQL database...Ch. 5.5 - Prob. 2CTQCh. 5 - Prob. 1SATCh. 5 - Prob. 2SATCh. 5 - Prob. 3SATCh. 5 - The ______________ model is a simple but highly...Ch. 5 - The ability to combine two or more tables through...Ch. 5 - Prob. 6SATCh. 5 - Prob. 7SATCh. 5 - Prob. 8SATCh. 5 - Prob. 9SATCh. 5 - Prob. 10SATCh. 5 - Prob. 11SATCh. 5 - Prob. 12SATCh. 5 - Prob. 13SATCh. 5 - Prob. 14SATCh. 5 - Prob. 15SATCh. 5 - Prob. 16SATCh. 5 - Prob. 1RQCh. 5 - In the hierarchy of data, what is the difference...Ch. 5 - Prob. 3RQCh. 5 - What is meant by data archiving? Why is this an...Ch. 5 - What is an entity-relationship diagram, and what...Ch. 5 - Identify four basic data manipulations performed...Ch. 5 - Prob. 7RQCh. 5 - Prob. 8RQCh. 5 - Prob. 9RQCh. 5 - Prob. 10RQCh. 5 - Prob. 11RQCh. 5 - Prob. 12RQCh. 5 - Prob. 13RQCh. 5 - Prob. 14RQCh. 5 - Prob. 15RQCh. 5 - Prob. 16RQCh. 5 - Prob. 17RQCh. 5 - Prob. 1DQCh. 5 - Outline some specific steps an organization might...Ch. 5 - SQL databases conform to ACID properties. Briefly...Ch. 5 - Prob. 4DQCh. 5 - Prob. 6DQCh. 5 - Prob. 8DQCh. 5 - Prob. 1PSECh. 5 - Describe the role of a database administrator....Ch. 5 - Prob. 2CECh. 5 - Prob. 1CTQ1Ch. 5 - Prob. 2CTQ1Ch. 5 - Prob. 3CTQ1Ch. 5 - Prob. 1CTQ2Ch. 5 - Prob. 2CTQ2Ch. 5 - Prob. 3CTQ2
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
- What is a stock model, and how does it function?arrow_forward16 The customer/user partial model identifies the customers/users that are relevant to the public business model. Select one: a. False b. Truearrow_forwardWrite the business rule(s) that govern the relationship between PRODUCT and VENDOR.arrow_forward
- Consider the following normalized relations for a sports league: What recommendations would you make regarding opportunities for denormalization? What additional information would you need to make fully informed denormalization decisions?arrow_forwardWhat exactly is meant to be accomplished by using an Entity-Relationship Model, and how is this model used?arrow_forwardWhat is the significance of creating groups and adding users to groups? Explain.arrow_forward
- Answer Botharrow_forwardWhat is total cost of ownership (TCO)? What costs often are underestimated?arrow_forwardan invoice is written by one sales rep but a sales rep writes many invoices a vendor sells many products but a product is bought from one vendor an invoice has one or many products and a product is found on zero, one or many invoices ● Identify the entity ● Identify the entity’s attribute ● Identify the primary and foreign Keys ● Identify relationship between Entities ● Identify the Cardinality constraints ● Draw ERDarrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Principles of Information Systems (MindTap Course...Computer ScienceISBN:9781305971776Author:Ralph Stair, George ReynoldsPublisher:Cengage Learning
Fundamentals of Information SystemsComputer ScienceISBN:9781337097536Author:Ralph Stair, George ReynoldsPublisher:Cengage Learning
Management Of Information SecurityComputer ScienceISBN:9781337405713Author:WHITMAN, Michael.Publisher:Cengage Learning,
Principles of Information Systems (MindTap Course...
Computer Science
ISBN:9781305971776
Author:Ralph Stair, George Reynolds
Publisher:Cengage Learning
Fundamentals of Information Systems
Computer Science
ISBN:9781337097536
Author:Ralph Stair, George Reynolds
Publisher:Cengage Learning
Management Of Information Security
Computer Science
ISBN:9781337405713
Author:WHITMAN, Michael.
Publisher:Cengage Learning,