This topic contains a solution. Click here to go to the answer

Author Question: Which of the following is true about a key? A) It may be unique. B) It may be non-unique. C) In ... (Read 95 times)

Hungry!

  • Hero Member
  • *****
  • Posts: 1,071
Which of the following is true about a key?
 
  A) It may be unique.
  B) It may be non-unique.
  C) In may identify more than one row.
  D) Both A and B
  E) All of the above

Question 2

When developing a database system, the database is constructed during the implementation phase.
 
  Indicate whether the statement is true or false



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

meryzewe

  • Sr. Member
  • ****
  • Posts: 346
Answer to Question 1

E

Answer to Question 2

TRUE




Hungry!

  • Member
  • Posts: 1,071
Reply 2 on: Jul 7, 2018
YES! Correct, THANKS for helping me on my review


cdmart10

  • Member
  • Posts: 332
Reply 3 on: Yesterday
Excellent

 

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?

Lower drug doses for elderly patients should be used first, with titrations of the dose as tolerated to prevent unwanted drug-related pharmacodynamic effects.

Did you know?

Nearly all drugs pass into human breast milk. How often a drug is taken influences the amount of drug that will pass into the milk. Medications taken 30 to 60 minutes before breastfeeding are likely to be at peak blood levels when the baby is nursing.

Did you know?

When blood is deoxygenated and flowing back to the heart through the veins, it is dark reddish-blue in color. Blood in the arteries that is oxygenated and flowing out to the body is bright red. Whereas arterial blood comes out in spurts, venous blood flows.

Did you know?

Cancer has been around as long as humankind, but only in the second half of the twentieth century did the number of cancer cases explode.

For a complete list of videos, visit our video library