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 76 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?

Once thought to have neurofibromatosis, Joseph Merrick (also known as "the elephant man") is now, in retrospect, thought by clinical experts to have had Proteus syndrome. This endocrine disease causes continued and abnormal growth of the bones, muscles, skin, and so on and can become completely debilitating with severe deformities occurring anywhere on the body.

Did you know?

The lipid bilayer is made of phospholipids. They are arranged in a double layer because one of their ends is attracted to water while the other is repelled by water.

Did you know?

GI conditions that will keep you out of the U.S. armed services include ulcers, varices, fistulas, esophagitis, gastritis, congenital abnormalities, inflammatory bowel disease, enteritis, colitis, proctitis, duodenal diverticula, malabsorption syndromes, hepatitis, cirrhosis, cysts, abscesses, pancreatitis, polyps, certain hemorrhoids, splenomegaly, hernias, recent abdominal surgery, GI bypass or stomach stapling, and artificial GI openings.

Did you know?

You should not take more than 1,000 mg of vitamin E per day. Doses above this amount increase the risk of bleeding problems that can lead to a stroke.

Did you know?

Not getting enough sleep can greatly weaken the immune system. Lack of sleep makes you more likely to catch a cold, or more difficult to fight off an infection.

The Real Reason Why They Repeat the Same 20 Songs on the Radio & TV Nationwide The Real Reason Why They Repeat the Same 20 Songs on the Radio & TV Nationwide
The Titanic carried only twenty lifeboats, a reason why so many perished in 1912. The Lusitania (abo The Titanic carried only twenty lifeboats, a reason why so many perished in 1912. The Lusitania (abo
The reason I selected this photo is to illustrate how seriously we must take all preaching of hatred ... The reason I selected this photo is to illustrate how seriously we must take all preaching of hatred ...
Ian Van Dahl - Reason Ian Van Dahl - Reason
Describe the Conceptual Forecasting Framework in your own words. Describe the Conceptual Forecasting Framework in your own words.
Key foreign policy agencies Key foreign policy agencies
Video: Pores and Ion Channels

For a complete list of videos, visit our video library