This topic contains a solution. Click here to go to the answer

Author Question: What is the difference between mapping a 1:M and a 1:1 relationship? What will be an ideal ... (Read 23 times)

tth

  • Hero Member
  • *****
  • Posts: 579
What is the difference between mapping a 1:M and a 1:1 relationship?
 
  What will be an ideal response?

Question 2

Relationship instances occur when an instance of one entity is related to an instance of another entity via a relationship.
 
  Indicate whether the statement is true or false



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

FergA

  • Sr. Member
  • ****
  • Posts: 352
Answer to Question 1

When a 1:M relationship is mapped, the foreign key must appear in the relation mapped from the M side. When a 1:1 relationship is mapped, the designer chooses in which of the tables the foreign key will appear.

Answer to Question 2

TRUE




tth

  • Member
  • Posts: 579
Reply 2 on: Jul 7, 2018
YES! Correct, THANKS for helping me on my review


meganmoser117

  • Member
  • Posts: 303
Reply 3 on: Yesterday
:D TYSM

 

Did you know?

People with alcoholism are at a much greater risk of malnutrition than are other people and usually exhibit low levels of most vitamins (especially folic acid). This is because alcohol often takes the place of 50% of their daily intake of calories, with little nutritional value contained in it.

Did you know?

When intravenous medications are involved in adverse drug events, their harmful effects may occur more rapidly, and be more severe than errors with oral medications. This is due to the direct administration into the bloodstream.

Did you know?

All adverse reactions are commonly charted in red ink in the patient's record and usually are noted on the front of the chart. Failure to follow correct documentation procedures may result in malpractice lawsuits.

Did you know?

People often find it difficult to accept the idea that bacteria can be beneficial and improve health. Lactic acid bacteria are good, and when eaten, these bacteria improve health and increase longevity. These bacteria included in foods such as yogurt.

Did you know?

The cure for trichomoniasis is easy as long as the patient does not drink alcoholic beverages for 24 hours. Just a single dose of medication is needed to rid the body of the disease. However, without proper precautions, an individual may contract the disease repeatedly. In fact, most people develop trichomoniasis again within three months of their last treatment.

For a complete list of videos, visit our video library