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Recent questions tagged ugcnetjan2017
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ER Model
Let pk(R) denotes primary key of relation R. A many-to-one relationship that exists between two relations R1 and R2 can be expressed as follows : A. pk(R2) → pk(R1) B. pk(R1) → pk(R2) C pk(R2) → R1 ∩ R2 D. pk(R1) → R1 ∩ R2
ARUN KUMAR 3
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Sep 24, 2018
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ARUN KUMAR 3
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