Author Question: At the stage of full systems testing with live data, operators and end-users become actively ... (Read 51 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?

Eating carrots will improve your eyesight. Carrots are high in vitamin A (retinol), which is essential for good vision. It can also be found in milk, cheese, egg yolks, and liver.

Did you know?

The heart is located in the center of the chest, with part of it tipped slightly so that it taps against the left side of the chest.

Did you know?

Pink eye is a term that refers to conjunctivitis, which is inflammation of the thin, clear membrane (conjunctiva) over the white part of the eye (sclera). It may be triggered by a virus, bacteria, or foreign body in the eye. Antibiotic eye drops alleviate bacterial conjunctivitis, and antihistamine allergy pills or eye drops help control allergic conjunctivitis symptoms.

Did you know?

Cocaine was isolated in 1860 and first used as a local anesthetic in 1884. Its first clinical use was by Sigmund Freud to wean a patient from morphine addiction. The fictional character Sherlock Holmes was supposed to be addicted to cocaine by injection.

Did you know?

Blastomycosis is often misdiagnosed, resulting in tragic outcomes. It is caused by a fungus living in moist soil, in wooded areas of the United States and Canada. If inhaled, the fungus can cause mild breathing problems that may worsen and cause serious illness and even death.

For a complete list of videos, visit our video library