This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: Which of the following is true about a relation? A) The order of the columns in a relation must ... (Read 82 times)

abarnes

  • Hero Member
  • *****
  • Posts: 556
on: Jul 7, 2018
Which of the following is true about a relation?
 
  A) The order of the columns in a relation must go from largest to smallest.
  B) All entries in any column must be of the same kind.
  C) A relation may have duplicate column names.
  D) A relation may have duplicate rows.
  E) A relation may have multiple names.

Question 2

SQL views are constructed from:
 
  A) CREATE statements.
  B) INSERT statements.
  C) UPDATE statements.
  D) SELECT statements.
  E) VIEW statements.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

ryhom

  • Sr. Member
  • ****
  • Posts: 366
Reply #1 on: Jul 7, 2018
Answer to Question 1

B

Answer to Question 2

D


abarnes

  • Member
  • Posts: 556
Reply 2 on: Jul 7, 2018
Excellent

FergA

  • Member
  • Posts: 352
Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

« previous next »
 

Did you know?

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

Did you know?

Liver spots have nothing whatsoever to do with the liver. They are a type of freckles commonly seen in older adults who have been out in the sun without sufficient sunscreen.

Did you know?

Drug abusers experience the following scenario: The pleasure given by their drug (or drugs) of choice is so strong that it is difficult to eradicate even after years of staying away from the substances involved. Certain triggers may cause a drug abuser to relapse. Research shows that long-term drug abuse results in significant changes in brain function that persist long after an individual stops using drugs. It is most important to realize that the same is true of not just illegal substances but alcohol and tobacco as well.

Did you know?

Adults are resistant to the bacterium that causes Botulism. These bacteria thrive in honey – therefore, honey should never be given to infants since their immune systems are not yet resistant.

Did you know?

Though the United States has largely rejected the metric system, it is used for currency, as in 100 pennies = 1 dollar. Previously, the British currency system was used, with measurements such as 12 pence to the shilling, and 20 shillings to the pound.

Apparent and True Orbits of Alpha Centauri. Apparent and True Orbits of Alpha Centauri.
Order and Duration of Sleep Stages Through a Typical Night Order and Duration of Sleep Stages Through a Typical Night
Sample purchase order form. Sample purchase order form.
First-order sensory neuron with free nerve endings First-order sensory neuron with free nerve endings
Nitrogen dioxide decomposes at 300°C via a second-order process to produce nitrogen monoxide ... Nitrogen dioxide decomposes at 300°C via a second-order process to produce nitrogen monoxide ...
The order of gene transfer in four Hfr strains The order of gene transfer in four Hfr strains
Video: Spermatogenesis Animation

For a complete list of videos, visit our video library