Author Question: Creating a data warehouse involves using the functionalities of database management software to ... (Read 67 times)

BrownTown3

  • Hero Member
  • *****
  • Posts: 564
Creating a data warehouse involves using the functionalities of database management software to implement the data warehouse model as a collection of physically created and mutually connected database tables.
 
  Indicate whether the statement is true or false

Question 2

What is a candidate key?
 
  What will be an ideal response?



duy1981999

  • Sr. Member
  • ****
  • Posts: 341
Answer to Question 1

TRUE

Answer to Question 2

Candidate keys occur when an entity has more than one unique attribute. In such cases, each unique attribute is also called a candidate key. The term candidate key comes from the fact that a candidate key is a candidate to be chosen as the primary identifier (also known as a primary key) when implementing the resulting database.



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

Studies show that systolic blood pressure can be significantly lowered by taking statins. In fact, the higher the patient's baseline blood pressure, the greater the effect of statins on his or her blood pressure.

Did you know?

If you could remove all of your skin, it would weigh up to 5 pounds.

Did you know?

Medication errors are more common among seriously ill patients than with those with minor conditions.

Did you know?

The eye muscles are the most active muscles in the whole body. The external muscles that move the eyes are the strongest muscles in the human body for the job they have to do. They are 100 times more powerful than they need to be.

Did you know?

There can actually be a 25-hour time difference between certain locations in the world. The International Date Line passes between the islands of Samoa and American Samoa. It is not a straight line, but "zig-zags" around various island chains. Therefore, Samoa and nearby islands have one date, while American Samoa and nearby islands are one day behind. Daylight saving time is used in some islands, but not in others—further shifting the hours out of sync with natural time.

For a complete list of videos, visit our video library