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Question
Given only the following excerpt of an E-R model:
If one instance of ENTITY B must be related to one and only one instance of ENTITY A, and one instance of ENTITY A may be related to many instances of ENTITY B, which of the following should be written on the end of the relationship line next to ENTITY B in the figure above?
A)
B)
C)
D)
E) None of the above is correct.
Answer
This answer is hidden. It contains 1 characters.
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