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Author Question: Which of the following is NOT a reason to create an instance of a relational schema with sample ... (Read 116 times)

james0929

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Which of the following is NOT a reason to create an instance of a relational schema with sample data?
 
  A) Sample data can be used to improve user communications.
  B) Sample data can be used for prototype generation.
  C) Sample data can reverse database implementation errors.
  D) Sample data provide a convenient way to check the accuracy of your design.

Question 2

Which of the following criteria should be considered when selecting an identifier?
 
  A) Choose an identifier that is stable.
  B) Choose an identifier that will not be null.
  C) Choose an identifier that doesn't have large composite attributes.
  D) All of the above.


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harveenkau8139

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james0929

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Reply 2 on: Jul 7, 2018
Excellent


deja

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Reply 3 on: Yesterday
Wow, this really help

 

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