This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: Describe the reason why it is acceptable to have null foreign key, but it is unacceptable to have a ... (Read 74 times)

rosent76

  • Hero Member
  • *****
  • Posts: 516
on: Apr 8, 2019
Describe the reason why it is acceptable to have null foreign key, but it is unacceptable to have a null primary key. Use the concept of entity integrity rule and referential integrity rule in your answer.
Accounting Information Systems ¦ Romney, Steinbart ¦ 14th Edition
Buy Test-Bank


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by rosent76 on Apr 8, 2019

matt95

  • Sr. Member
  • ****
  • Posts: 317
Reply #1 on: Apr 8, 2019
Lorsum iprem. Lorsus sur ipci. Lorsem sur iprem. Lorsum sur ipdi, lorsem sur ipci. Lorsum sur iprium, valum sur ipci et, vala sur ipci. Lorsem sur ipci, lorsa sur iprem. Valus sur ipdi. Lorsus sur iprium nunc, valem sur iprium. Valem sur ipdi. Lorsa sur iprium. Lorsum sur iprium. Valem sur ipdi. Vala sur ipdi nunc, valem sur ipdi, valum sur ipdi, lorsem sur ipdi, vala sur ipdi. Valem sur iprem nunc, lorsa sur iprium. Valum sur ipdi et, lorsus sur ipci. Valem sur iprem. Valem sur ipci. Lorsa sur iprium. Lorsem sur ipci, valus sur iprem. Lorsem sur iprem nunc, valus sur iprium.
Answer Preview
Only 45% of students answer this correctly


rosent76

  • Hero Member
  • *****
  • Posts: 516
Reply #2 on: Apr 8, 2019
TY


matt95

  • Sr. Member
  • ****
  • Posts: 317
Reply #3 on: Apr 8, 2019
You're welcome


« previous next »
 

Did you know?

Adult head lice are gray, about ? inch long, and often have a tiny dot on their backs. A female can lay between 50 and 150 eggs within the several weeks that she is alive. They feed on human blood.

Did you know?

Many people have small pouches in their colons that bulge outward through weak spots. Each pouch is called a diverticulum. About 10% of Americans older than age 40 years have diverticulosis, which, when the pouches become infected or inflamed, is called diverticulitis. The main cause of diverticular disease is a low-fiber diet.

Did you know?

Autoimmune diseases occur when the immune system destroys its own healthy tissues. When this occurs, white blood cells cannot distinguish between pathogens and normal cells.

Did you know?

Asthma is the most common chronic childhood disease in the world. Most children who develop asthma have symptoms before they are 5 years old.

Did you know?

The average person is easily confused by the terms pharmaceutics and pharmacology, thinking they are one and the same. Whereas pharmaceutics is the science of preparing and dispensing drugs (otherwise known as the science of pharmacy), pharmacology is the study of medications.

Acceptable ranges for adults Acceptable ranges for adults
Acceptable ranges of heart rate Acceptable ranges of heart rate
Acceptable ranges of respiratory rate Acceptable ranges of respiratory rate
In 2013, Americans learned that the federal government massively surveys their phone calls and e-mai In 2013, Americans learned that the federal government massively surveys their phone calls and e-mai
Describe the functions of fat in the body Describe the functions of fat in the body
Give the world a reason to remember your name Give the world a reason to remember your name
Video: Neuron Type Animation

For a complete list of videos, visit our video library