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 51 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
Thanks for the timely response, appreciate it


TheDev123

  • Member
  • Posts: 332
Reply 3 on: Yesterday
Great answer, keep it coming :)

 

Did you know?

More than one-third of adult Americans are obese. Diseases that kill the largest number of people annually, such as heart disease, cancer, diabetes, stroke, and hypertension, can be attributed to diet.

Did you know?

The modern decimal position system was the invention of the Hindus (around 800 AD), involving the placing of numerals to indicate their value (units, tens, hundreds, and so on).

Did you know?

If all the neurons in the human body were lined up, they would stretch more than 600 miles.

Did you know?

Malaria was not eliminated in the United States until 1951. The term eliminated means that no new cases arise in a country for 3 years.

Did you know?

Bacteria have flourished on the earth for over three billion years. They were the first life forms on the planet.

For a complete list of videos, visit our video library