Author Question: A natural join is the same as an equi-join, except that it is performed over matching columns that ... (Read 92 times)

jayhills49

  • Hero Member
  • *****
  • Posts: 559
A natural join is the same as an equi-join, except that it is performed over matching columns that have been defined with the same name, and one of the duplicate columns is eliminated.
 
  Indicate whether the statement is true or false

Question 2

Which of the following is not a common problem with antivirus protections?
 
  A) Users may turn the AV off.
  B) The virus program contract may expire.
  C) Automatic updates of virus signatures might be inadvertently turned off.
  D) All of the above are common problems with antivirus protections.



Meganchabluk

  • Sr. Member
  • ****
  • Posts: 301
Answer to Question 1

TRUE

Answer to Question 2

Answer: D



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

Glaucoma is a leading cause of blindness. As of yet, there is no cure. Everyone is at risk, and there may be no warning signs. It is six to eight times more common in African Americans than in whites. The best and most effective way to detect glaucoma is to receive a dilated eye examination.

Did you know?

Individuals are never “cured” of addictions. Instead, they learn how to manage their disease to lead healthy, balanced lives.

Did you know?

Anesthesia awareness is a potentially disturbing adverse effect wherein patients who have been paralyzed with muscle relaxants may awaken. They may be aware of their surroundings but unable to communicate or move. Neurologic monitoring equipment that helps to more closely check the patient's anesthesia stages is now available to avoid the occurrence of anesthesia awareness.

Did you know?

The horizontal fraction bar was introduced by the Arabs.

Did you know?

A strange skin disease referred to as Morgellons has occurred in the southern United States and in California. Symptoms include slowly healing sores, joint pain, persistent fatigue, and a sensation of things crawling through the skin. Another symptom is strange-looking, threadlike extrusions coming out of the skin.

For a complete list of videos, visit our video library