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Author Question: Which of the following is not true of MUST constraint? A) It may be needed in ternary ... (Read 14 times)

ss2343

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on: Jul 7, 2018
Which of the following is not true of MUST constraint?
 
  A) It may be needed in ternary relationships to enforce special business rules.
  B) It can be expressed directly in a relational model.
  C) It must be enforced by program code.
  D) It requires that one entity be combined with another entity.

Question 2

When examining data values as a part of assessing table structure, you should try to determine the table's primary key.
 
  Indicate whether the statement is true or false


Dinolord

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

B

Answer to Question 2

TRUE


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