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 25 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?

Every flu season is different, and even healthy people can get extremely sick from the flu, as well as spread it to others. The flu season can begin as early as October and last as late as May. Every person over six months of age should get an annual flu vaccine. The vaccine cannot cause you to get influenza, but in some seasons, may not be completely able to prevent you from acquiring influenza due to changes in causative viruses. The viruses in the flu shot are killed—there is no way they can give you the flu. Minor side effects include soreness, redness, or swelling where the shot was given. It is possible to develop a slight fever, and body aches, but these are simply signs that the body is responding to the vaccine and making itself ready to fight off the influenza virus should you come in contact with it.

Did you know?

Cucumber slices relieve headaches by tightening blood vessels, reducing blood flow to the area, and relieving pressure.

Did you know?

Cutaneous mucormycosis is a rare fungal infection that has been fatal in at least 29% of cases, and in as many as 83% of cases, depending on the patient's health prior to infection. It has occurred often after natural disasters such as tornados, and early treatment is essential.

Did you know?

Elderly adults are at greatest risk of stroke and myocardial infarction and have the most to gain from prophylaxis. Patients ages 60 to 80 years with blood pressures above 160/90 mm Hg should benefit from antihypertensive treatment.

Did you know?

Addicts to opiates often avoid treatment because they are afraid of withdrawal. Though unpleasant, with proper management, withdrawal is rarely fatal and passes relatively quickly.

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
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
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 ...
Describe the development of atherosclerosis, including its role in the risk of heart disease Describe the development of atherosclerosis, including its role in the risk of heart disease
Which is the most acceptable electron dot structure for N2H2? Which is the most acceptable electron dot structure for N2H2?
Video: Corpus Callosum Animation

For a complete list of videos, visit our video library