Author Question: Which of the following is NOT true when deciding when to use a surrogate key? A) The advantage ... (Read 75 times)

bclement10

  • Hero Member
  • *****
  • Posts: 560
Which of the following is NOT true when deciding when to use a surrogate key?
 
  A) The advantage with a surrogate key is that it can help prevent some cascading changes from primary to foreign key errors.
  B) A surrogate key can increase the file size and require more joins.
  C) If the key never has a foreign key, you need a surrogate key.
  D) If you have a primary key with a foreign key that may need to be changed frequently or more than normal, a surrogate key should be considered.

Question 2

A table is a collection of data or fields.
 
  Indicate whether the statement is true or false



snackralk

  • Sr. Member
  • ****
  • Posts: 363
Answer to Question 1

C

Answer to Question 2

TRUE



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question


 

Did you know?

The calories found in one piece of cherry cheesecake could light a 60-watt light bulb for 1.5 hours.

Did you know?

Famous people who died from poisoning or drug overdose include, Adolf Hitler, Socrates, Juan Ponce de Leon, Marilyn Monroe, Judy Garland, and John Belushi.

Did you know?

People with alcoholism are at a much greater risk of malnutrition than are other people and usually exhibit low levels of most vitamins (especially folic acid). This is because alcohol often takes the place of 50% of their daily intake of calories, with little nutritional value contained in it.

Did you know?

It is difficult to obtain enough calcium without consuming milk or other dairy foods.

Did you know?

The modern decimal position system was the invention of the Hindus (around 800 AD), involving the placing of numerals to indicate their value (units, tens, hundreds, and so on).

For a complete list of videos, visit our video library