Which of the following symbols represents an optional relationship in an E-R model? a. A straight line
Question:
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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Jibin K George
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Having in depth knowledge in subjects like CAD/CAM, Refrigeration & Air-conditioning, Metrology & Machine Tools, Welding, Physics, Chemistry, Mathematics etc.
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