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Author Question: Removing duplicate records is a common database task. Indicate whether the statement is true or ... (Read 43 times)

WWatsford

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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



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JCABRERA33

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Answer to Question 1

TRUE

Answer to Question 2

B




WWatsford

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Reply 2 on: Jul 7, 2018
Excellent


jomama

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Reply 3 on: Yesterday
Gracias!

 

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