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2 June, 11:39

An entity with two multivalued attributes will be mapped as how many relations

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  1. 2 June, 12:04
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    There are so many relationships between the original entity and new relation.

    The relation mapped from an entity involved in a 1:1 unary relationship contains a foreign key that correspond to its own primary key. 1 to one foreign key will be unique.
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