Computers and Technology, 15.03.2022 23:50 dai77
For maximum cardinality we are most interested in either 1 or many or (1/M), because maximum cardinality defines the types of relationships. For minimum cardinality we are most interested in either 0 or 1 or (0/1), because minimum cardinality defines if the relationship is mandatary or optional. Quite often the maximum cardinality is clear. But minimum cardinality is based on the context or business rules. If we examine the cardinality from student to course.
a. What would you say is the maximum cardinality?
b. What would you say is the minimum cardinality?
c. What does it imply/require if you choose the minimum cardinality to be 0 or 1? Explain.
Answers: 2
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For maximum cardinality we are most interested in either 1 or many or (1/M), because maximum cardina...
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