When the values in one or more attributes being used as a foreign key – McqOptions

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1.	When the values in one or more attributes being used as a foreign key must exist in another set of one or more attributes in another table, we have created a(n):
A.	transitive dependency.
B.	insertion anomaly.
C.	referential integrity constraint.
D.	normal form.
Answer» D. normal form.

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