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 41 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
Great answer, keep it coming :)


patma1981

  • Member
  • Posts: 292
Reply 3 on: Yesterday
Wow, this really help

 

Did you know?

The Centers for Disease Control and Prevention has released reports detailing the deaths of infants (younger than 1 year of age) who died after being given cold and cough medications. This underscores the importance of educating parents that children younger than 2 years of age should never be given over-the-counter cold and cough medications without consulting their physicians.

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?

Pubic lice (crabs) are usually spread through sexual contact. You cannot catch them by using a public toilet.

Did you know?

Though “Krazy Glue” or “Super Glue” has the ability to seal small wounds, it is not recommended for this purpose since it contains many substances that should not enter the body through the skin, and may be harmful.

Did you know?

Most women experience menopause in their 50s. However, in 1994, an Italian woman gave birth to a baby boy when she was 61 years old.

For a complete list of videos, visit our video library