GATE Computer Science (CS) 2017 Shift 2 Solved Paper

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Question : 27 of 65

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An ER model of a database consists of entity types 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?

Relationship R is one-to-many and the participation of A in R is total.
Relationship is one-to-many and the participation of A in R is partial.
Relationship R is many-to-one and the participation of A in R is total.
Relationship R is many-to-one and the participation of A in R is partial.

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