Author Question: At the stage of full systems testing with live data, operators and end-users become actively ... (Read 53 times)

Wadzanai

  • Hero Member
  • *****
  • Posts: 528
At the stage of full systems testing with live data, operators and end-users become actively involved in testing.
 
  Indicate whether the statement is true or false

Question 2

Which of the following best describes what the following code does?DELETE FROM ContactWHERE ContactKey <(SELECT MAX(ContactKey) FROM Contact c WHERE Contact.LastName=c.LastName AND Contact.FirstName=c.FrirstName AND Contact.Email=c.Email AND contact.
 
  Phone=c.Phone)A) It removes all contacts from the contact table
  B) It removes duplicates from the contact table
  C) It removes all unmatched data
  D) None of the above



janeli1

  • Sr. Member
  • ****
  • Posts: 330
Answer to Question 1

FALSE

Answer to Question 2

B



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

Most fungi that pathogenically affect humans live in soil. If a person is not healthy, has an open wound, or is immunocompromised, a fungal infection can be very aggressive.

Did you know?

Approximately 500,000 babies are born each year in the United States to teenage mothers.

Did you know?

People often find it difficult to accept the idea that bacteria can be beneficial and improve health. Lactic acid bacteria are good, and when eaten, these bacteria improve health and increase longevity. These bacteria included in foods such as yogurt.

Did you know?

In 2012, nearly 24 milliion Americans, aged 12 and older, had abused an illicit drug, according to the National Institute on Drug Abuse (NIDA).

Did you know?

There are 60,000 miles of blood vessels in every adult human.

For a complete list of videos, visit our video library