Author Question: At the stage of full systems testing with live data, operators and end-users become actively ... (Read 55 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?

Elderly adults are at greatest risk of stroke and myocardial infarction and have the most to gain from prophylaxis. Patients ages 60 to 80 years with blood pressures above 160/90 mm Hg should benefit from antihypertensive treatment.

Did you know?

Aspirin may benefit 11 different cancers, including those of the colon, pancreas, lungs, prostate, breasts, and leukemia.

Did you know?

Signs of depression include feeling sad most of the time for 2 weeks or longer; loss of interest in things normally enjoyed; lack of energy; sleep and appetite disturbances; weight changes; feelings of hopelessness, helplessness, or worthlessness; an inability to make decisions; and thoughts of death and suicide.

Did you know?

Asthma-like symptoms were first recorded about 3,500 years ago in Egypt. The first manuscript specifically written about asthma was in the year 1190, describing a condition characterized by sudden breathlessness. The treatments listed in this manuscript include chicken soup, herbs, and sexual abstinence.

Did you know?

Limit intake of red meat and dairy products made with whole milk. Choose skim milk, low-fat or fat-free dairy products. Limit fried food. Use healthy oils when cooking.

For a complete list of videos, visit our video library