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Author Question: Using the normalized relation notation, an attribute of a relation which is the primary key of ... (Read 38 times)

Beheh

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on: Jul 7, 2018
Using the normalized relation notation, an attribute of a relation which is the primary key of another relation is indicated by:
 
  A) an underline.
  B) a circle.
  C) a dashed underline.
  D) italics.
  E) a double-lined ellipse.

Question 2

On a class diagram, an exclamation point represents a multiplicity with an infinite upper bound.
 
  Indicate whether the statement is true or false


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janeli1

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

C
Explanation: C) This indicates to the designer that the attribute will uniquely identify an entity instance (row).
CL

Answer to Question 2

FALSE
Explanation: The  represents infinite upper bound.
CL


Beheh

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Reply 2 on: Jul 7, 2018
Excellent

ttt030911

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Reply 3 on: Yesterday
Gracias!

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