1.

Name And Describe Three Types Of Binary Relationships?

Answer»

1:1 - a single entity INSTANCE of one type is related to a single-entity instance of ANOTHER type.
1:N - a single entity instance of one type is related to many-entity instances of another type.
M:N - many-entity instances of one type relate to many-entity instances of another type.

1:1 - a single entity instance of one type is related to a single-entity instance of another type.
1:N - a single entity instance of one type is related to many-entity instances of another type.
M:N - many-entity instances of one type relate to many-entity instances of another type.



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