Which of the following symbols represents an optional relationship in an E-R model? a. A straight line

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Which of the following symbols represents an optional relationship in an E-R model?

a. A straight line

b. A dashed line

c. A straight line with a crow’s foot at both ends

d. A straight line with a crow’s foot at one end

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Oracle 12c SQL

ISBN: 978-1305251038

3rd edition

Authors: Joan Casteel

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Question Posted: Dec 20, 2018 11:53 AM

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Which of the following symbols represents an optional relationship in an E-R model? a. A straight line

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Oracle 12c SQL

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