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Author Question: Which of the following can be a disadvantage of a natural key? A) The attempt guarantee ... (Read 36 times)

jeatrice

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on: Jul 7, 2018
Which of the following can be a disadvantage of a natural key?
 
  A) The attempt guarantee uniqueness may result in awkward composite keys
  B) It is difficult to guarantee the uniqueness of a value
  C) Because a natural key represents business data it can change over time
  D) All of the above

Question 2

Relational database principles were first defined by a man named:
 
  A) Gates
  B) Codd
  C) Jobs
  D) Roberts


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Dominic

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

D

Answer to Question 2

B


jeatrice

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Reply 2 on: Jul 7, 2018
:D TYSM

yeungji

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

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