Author Question: Representing a one-to-many recursive relationship requires which of the following? A) Additional ... (Read 62 times)

penza

  • Hero Member
  • *****
  • Posts: 1,022
Representing a one-to-many recursive relationship requires which of the following?
 
  A) Additional table with a primary key, but without a foreign key
  B) Additional table with a composite primary key that acts as a foreign key
  C) No additional table modification
  D) Additional foreign key that is also a primary key in the same table

Question 2

The final phase of the systems development life cycle (SDLC) is ________.



chevyboi1976

  • Sr. Member
  • ****
  • Posts: 344
Answer to Question 1

D

Answer to Question 2




Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

Illicit drug use costs the United States approximately $181 billion every year.

Did you know?

No drugs are available to relieve parathyroid disease. Parathyroid disease is caused by a parathyroid tumor, and it needs to be removed by surgery.

Did you know?

It is difficult to obtain enough calcium without consuming milk or other dairy foods.

Did you know?

Asthma attacks and symptoms usually get started by specific triggers (such as viruses, allergies, gases, and air particles). You should talk to your doctor about these triggers and find ways to avoid or get rid of them.

Did you know?

Your skin wrinkles if you stay in the bathtub a long time because the outermost layer of skin (which consists of dead keratin) swells when it absorbs water. It is tightly attached to the skin below it, so it compensates for the increased area by wrinkling. This happens to the hands and feet because they have the thickest layer of dead keratin cells.

For a complete list of videos, visit our video library