Author Question: Changing cardinalities ________. A) never occurs in database redesign B) rarely occurs in ... (Read 120 times)

beccaep

  • Hero Member
  • *****
  • Posts: 535
Changing cardinalities ________.
 
  A) never occurs in database redesign
  B) rarely occurs in database redesign
  C) commonly occurs in database redesign
  D) always occurs in database redesign

Question 2

Which of the following is true of clustered indexes?
 
  A) They are normally slower than nonclustered indexes for retrieving data.
  B) Only one is allowed per table.
  C) They are normally slower than nonclustered indexes for updating data.
  D) They do not have data in the bottom level.



emily12345

  • Sr. Member
  • ****
  • Posts: 321
Answer to Question 1

C

Answer to Question 2

B



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

More than nineteen million Americans carry the factor V gene that causes blood clots, pulmonary embolism, and heart disease.

Did you know?

The most destructive flu epidemic of all times in recorded history occurred in 1918, with approximately 20 million deaths worldwide.

Did you know?

Approximately 15–25% of recognized pregnancies end in miscarriage. However, many miscarriages often occur before a woman even knows she is pregnant.

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?

To prove that stomach ulcers were caused by bacteria and not by stress, a researcher consumed an entire laboratory beaker full of bacterial culture. After this, he did indeed develop stomach ulcers, and won the Nobel Prize for his discovery.

For a complete list of videos, visit our video library