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Home / Questions / If K is a foreign key in a relation R1, then (a)Every tuple of R1 has a distinct value fo

If K is a foreign key in a relation R1, then (a)Every tuple of R1 has a distinct value fo

If K is a foreign key in a relation R1, then

(a)Every tuple of R1 has a distinct value for K
(b)K cannot have a null value for tuples in R1
(c)K is a key for some other relation
(d)K is a Primary key for R1
(e)K is a Composite key for R1.

Dec 28 2017 View more View Less

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