Скачать или смотреть GATE CS 2017 Set 2 | Question: 17 An ER model of a database consists of entity types A and B.

GATE CS 2017 Set 2 | Question: 17
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?
(A)Relationship R is one-to-many and the participation of A in R is total
(B)Relationship R is one-to-many and the participation of A in R is partial
(C)Relationship R is many-to-one and the participation of A in R is total
(D)Relationship R is many-to-one and the participation of A in R is partial


Ans : (C)
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