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An ER model o...

Question

An ER model of a database consists of entity type A and B. These are connected by a relationship R which does not have its own attribute. Under which one of the following conditions, can the relational table for R be merged with that of A?

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Solution

Entity sets A, B
Relationship set R
Relation R merges with that of A.

Many to one relationship set can merge towards entity set 'A'.

Partipation towards A side can be total / partial.

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