Author Question: Changing cardinalities ________. A) never occurs in database redesign B) rarely occurs in ... (Read 119 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?

There are actually 60 minerals, 16 vitamins, 12 essential amino acids, and three essential fatty acids that your body needs every day.

Did you know?

Looking at the sun may not only cause headache and distort your vision temporarily, but it can also cause permanent eye damage. Any exposure to sunlight adds to the cumulative effects of ultraviolet (UV) radiation on your eyes. UV exposure has been linked to eye disorders such as macular degeneration, solar retinitis, and corneal dystrophies.

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?

When Gabriel Fahrenheit invented the first mercury thermometer, he called "zero degrees" the lowest temperature he was able to attain with a mixture of ice and salt. For the upper point of his scale, he used 96°, which he measured as normal human body temperature (we know it to be 98.6° today because of more accurate thermometers).

Did you know?

Blood is approximately twice as thick as water because of the cells and other components found in it.

For a complete list of videos, visit our video library