Author Question: In a recursive relationship, which of the following is true of the entity involved? A) The entity ... (Read 95 times)

shofmannx20

  • Hero Member
  • *****
  • Posts: 562
In a recursive relationship, which of the following is true of the entity involved?
 
  A) The entity is neither the parent nor the child.
  B) The entity is both the parent and the child.
  C) The entity is the child, but not the parent.
  D) The entity is the parent, but not the child.

Question 2

Customer's phone number does not satisfy which of the following primary key desired
  properties?
 
  A) Nonupdateable B) Minimal
  C) Non-null D) Unique



Ashley I

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

B

Answer to Question 2

A



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

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

Did you know?

In the ancient and medieval periods, dysentery killed about ? of all babies before they reach 12 months of age. The disease was transferred through contaminated drinking water, because there was no way to adequately dispose of sewage, which contaminated the water.

Did you know?

To maintain good kidney function, you should drink at least 3 quarts of water daily. Water dilutes urine and helps prevent concentrations of salts and minerals that can lead to kidney stone formation. Chronic dehydration is a major contributor to the development of kidney stones.

Did you know?

Amoebae are the simplest type of protozoans, and are characterized by a feeding and dividing trophozoite stage that moves by temporary extensions called pseudopodia or false feet.

Did you know?

Bisphosphonates were first developed in the nineteenth century. They were first investigated for use in disorders of bone metabolism in the 1960s. They are now used clinically for the treatment of osteoporosis, Paget's disease, bone metastasis, multiple myeloma, and other conditions that feature bone fragility.

For a complete list of videos, visit our video library