Explain in a paragraph the relationship between a foreign key and a primary key, and why it

Question:

Explain in a paragraph the relationship between a foreign key and a primary key, and why it is necessary to have them on separate entities when there is a relationship between the entities.

Fantastic news! We've Found the answer you've been seeking!

Step by Step Answer:

Related Book For book-img-for-question

Systems Analysis and Design

ISBN: 978-0133023442

9th edition

Authors: Kenneth E. Kendall, Julie E. Kendall

See More Books

Question Posted: Sep 30, 2016 08:59 AM

See More Questions

Explain in a paragraph why a phased conversion would be used to install the computer system.
Show SQL statements for creating a relationship between table T2 and table T3. Assume that T3 has a foreign key column named FK1 that relates to T2 and that deletions in T2 should force deletions in...
In the following exercises, you will use the data in the Solmaris Condominium Group database shown in Figures 1-21 through 1-25. (If you use a computer to complete these exercises, use a copy of the...
A company conducts a Security model workshop to review configuration options. The company uses Microsoft Entra ID to control access and permissions within multiple corporate applications. When users...
Define the operating cycle.
If bonds were being issued with a stated rate of 8% and the market rate is 9%, the bonds would most likely sell at which of the following? 108 O 100 O 95 80
21-5. El comprador multicanal es _______________________.
Suppose you get a job at Aoki Corporation, a firm that manufactures glass for industrial and consumer markets. Aoki is a large firm but has little international experience. Senior managers are...
3. Andy and Sally are married and under 50. They have no dependents. Sallys salary (Federal withholding $3,000) 60,000 Andys salary (Federal withholding $3,000) 45,000 City of Dallas municipal bonds...
It is T3 Coding Challenge 4: Debug. I have got all of the steps except the 5th check mark. I have included what I have done so far minus the comments at the top but starting with /* Page Body Styles...
Each computer may have more than one operating system, and each operating system may be installed on more than one computer. Add an associative entity called COMPUTER OPERATING SYSTEM between...
Define the term "graphical user interface." What is the key difficulty they present for programmers?
18. LO.1 Eagle Partners meets all of the requirements of 1237 (subdivided realty). In 2021, Eagle Partners begins selling lots and sells four separate lots to four different purchasers. Eagle...
A certain random process $U(t)$ takes on equally probable values +1 or 0 with changes occurring randomly in time. The probability that $n$ changes occur in time $\tau$ is known to be \[...
The focal points of the two converging lenses shown in Figure P33.121 are denoted by solid dots for the left lens and open dots for the right lens. Draw a simplified ray diagram to locate the final...
Suppose that country A has 9,000 worker hours available for production and that it initially has the technology given by case 3 of Exercise 1. Derive its PPF and determine its exact dimensions. data...
The table shows experimental values of the variables x and y. The variables are known to be related by the equation y = a e nx where a and n are constants. a. Draw the graph of ln y against x. b....
Construct the Nyquist diagram for a single-degree-of-freedom system with hysteretic damping.
Running our stack-checking code 10,000 times on a system running Linux version 2.6.16, we obtained addresses ranging from a minimum of 0xffffb754 to a maximum of 0xffffd754. A. What is the...
In Problem use geometric formulas to find the unsigned area between the graph of y = f(x) and the x axis over the indicated interval. f(x) = x + 5; [0, 4]
Write a sample use case scenario for a patient who sees a physician in the Kirt Clinic.
Woodys Supermarket, a small chain of grocery stores, is building a Web site to allow customers to place orders for groceries and other items they sell. The customer places a Web order, the customer...
Sludges Auto (refer to Chapter 12) is as an auto parts recycling center, using Ajax on Web sites for customers to browse for parts. Ajax allows the Web site to obtain data from the server while the...
Bought an old van for 4000 from Peters promising to pay laterwhat is the transactions
Company has a following trade credit policy 1/10 N45. If you can borrow from a bank at 9,5% annual rate, would it be beneficial to borrow money and pay off invoices earlier?
Given the following exchange rates, which of the multiple-choice choices represents a potentially profitable inter-market arbitrage opportunity? 129.87/$1.1226/$0.00864/ 114.96/ B $0.8908/ (C)...

Explain in a paragraph the relationship between a foreign key and a primary key, and why it

Question:

Step by Step Answer:

A foreign key on one file is the primary key of ...View the full answer

Systems Analysis and Design

Students also viewed these Computer Sciences questions