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Cardinality shows the number of instances of an entity associated with another entity participating in a relationship. Depend on the cardinality binary relationship can be further dividing into the following categories:
Example: Relationship between university/college and principal
One college only have at the most one principal and one principal can be assigned to only one college.
Likewise we can define the relationship among Vice Chancellor and university.
sql is relationally complete-justify
usecase diagram,activity diagraM,SEQUENCE DIAGRAM
Find the names of all Albums that have more than 30 tracks. Result: (name: varchar(255))
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i am required to come up with entities relationships, optionality and cardinality from a scenario. there is a night club and bookings for a musician band
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