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Author Question: The prefix :old is used to make previous values of columns available to update and delete triggers. ... (Read 127 times)

dejastew

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on: Jul 7, 2018
The prefix :old is used to make previous values of columns available to update and delete triggers.
 
  Indicate whether the statement is true or false

Question 2

One weakness of UML-style E-R diagrams is that there is no means of distinguishing between a weak entity that is ID-dependent and a weak entity that is not ID-dependent.
 
  Indicate whether the statement is true or false


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kilada

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Reply #1 on: Jul 7, 2018
Answer to Question 1

TRUE

Answer to Question 2

FALSE


dejastew

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Reply 2 on: Jul 7, 2018
Wow, this really help

bigsis44

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Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

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