This topic contains a solution. Click here to go to the answer

Author Question: Removing duplicate records is a common database task. Indicate whether the statement is true or ... (Read 83 times)

WWatsford

  • Hero Member
  • *****
  • Posts: 539
    • Biology Forums!
Removing duplicate records is a common database task.
 
  Indicate whether the statement is true or false

Question 2

Which of the following best describes the effect of enforcing referential integrity on deletes?
 
  A) You cannot enter data into a foreign key table unless it is related to an existing record in the primary key table
  B) You cannot remove a record from the primary key table if it has related records in the foreign key table
  C) You cannot change a primary key that has related records in a foreign key table
  D) All of the above



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

JCABRERA33

  • Sr. Member
  • ****
  • Posts: 344
Answer to Question 1

TRUE

Answer to Question 2

B




WWatsford

  • Member
  • Posts: 539
Reply 2 on: Jul 7, 2018
Gracias!


ricroger

  • Member
  • Posts: 352
Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

 

Did you know?

Atropine was named after the Greek goddess Atropos, the oldest and ugliest of the three sisters known as the Fates, who controlled the destiny of men.

Did you know?

If all the neurons in the human body were lined up, they would stretch more than 600 miles.

Did you know?

Tobacco depletes the body of vitamins A, C, and E, which can result in any of the following: dry hair, dry skin, dry eyes, poor growth, night blindness, abscesses, insomnia, fatigue, reproductive system problems, sinusitis, pneumonia, frequent respiratory problems, skin disorders, weight loss, rickets, osteomalacia, nervousness, muscle spasms, leg cramps, extremity numbness, bone malformations, decayed teeth, difficulty in walking, irritability, restlessness, profuse sweating, increased uric acid (gout), joint damage, damaged red blood cells, destruction of nerves, infertility, miscarriage, and many types of cancer.

Did you know?

Increased intake of vitamin D has been shown to reduce fractures up to 25% in older people.

Did you know?

Essential fatty acids have been shown to be effective against ulcers, asthma, dental cavities, and skin disorders such as acne.

For a complete list of videos, visit our video library