Author Question: Using the normalized relation notation, an attribute of a relation which is the primary key of ... (Read 89 times)

Beheh · **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

janeli1 · **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