Author Question: One advantage of optimistic locking is that the lock is obtained only after the transaction is ... (Read 11 times)

shofmannx20

  • Hero Member
  • *****
  • Posts: 562
One advantage of optimistic locking is that the lock is obtained only after the transaction is processed.
 
  Indicate whether the statement is true or false

Question 2

A candidate key is:
 
  A) required to be unique.
  B) used to represent rows in relationships.
  C) a candidate to be the primary key.
  D) Both A and B
  E) All of the above



cdmart10

  • Sr. Member
  • ****
  • Posts: 332
Answer to Question 1

TRUE

Answer to Question 2

E



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

Eat fiber! A diet high in fiber can help lower cholesterol levels by as much as 10%.

Did you know?

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

Did you know?

There are more sensory neurons in the tongue than in any other part of the body.

Did you know?

Malaria was not eliminated in the United States until 1951. The term eliminated means that no new cases arise in a country for 3 years.

Did you know?

The effects of organophosphate poisoning are referred to by using the abbreviations “SLUD” or “SLUDGE,” It stands for: salivation, lacrimation, urination, defecation, GI upset, and emesis.

For a complete list of videos, visit our video library