An attribute in a relation is a foreign key if the _______ key from one relation is used as an attribute in that relation.a.Superb.Primaryc.Candidated.unique
Question
An attribute in a relation is a foreign key if the _______ key from one relation is used as an attribute in that relation.a.Superb.Primaryc.Candidated.unique
Solution
The correct answer is b. Primary. A foreign key in a database is a field (or collection of fields) in one table, that is a primary key in another table. This allows you to cross-reference tables.
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