« previous next »

Author Question: One advantage of optimistic locking is that the lock is obtained only after the transaction is ... (Read 56 times)

shofmannx20

  • Hero Member
  • *****
  • Posts: 562
on: Jul 7, 2018
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
Reply #1 on: Jul 7, 2018
Answer to Question 1

TRUE

Answer to Question 2

E


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

More than nineteen million Americans carry the factor V gene that causes blood clots, pulmonary embolism, and heart disease.

Did you know?

The horizontal fraction bar was introduced by the Arabs.

Did you know?

Drugs are in development that may cure asthma and hay fever once and for all. They target leukotrienes, which are known to cause tightening of the air passages in the lungs and increase mucus productions in nasal passages.

Did you know?

About 60% of newborn infants in the United States are jaundiced; that is, they look yellow. Kernicterus is a form of brain damage caused by excessive jaundice. When babies begin to be affected by excessive jaundice and begin to have brain damage, they become excessively lethargic.

Did you know?

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

The first dark spot observed on Uranus. Image obtained by the HST ACS in 2006. The first dark spot observed on Uranus. Image obtained by the HST ACS in 2006.
a) Avoid locking your elbows. b) To avoid locking your elbows, keep your elbows facing sideways. a) Avoid locking your elbows. b) To avoid locking your elbows, keep your elbows facing sideways.
Obtained from the deadly nightshade plant Atropa belladona, atropine remains a traditional drug ... Obtained from the deadly nightshade plant Atropa belladona, atropine remains a traditional drug ...
Psychoactive substances: (left) Psilocybin is obtained from a species of mushroom; (right) LSD is ... Psychoactive substances: (left) Psilocybin is obtained from a species of mushroom; (right) LSD is ...
Snap-ring pliers are also called lock-ring pliers, and they are designed to remove internal and ... Snap-ring pliers are also called lock-ring pliers, and they are designed to remove internal and ...
Controlling access to water in order to gain political and strategic advantage in Gaza Controlling access to water in order to gain political and strategic advantage in Gaza
Video: Cellular Defects - Osteoblasts, Osteoclasts and Osteocytes

For a complete list of videos, visit our video library