The values appearing in given attributes of any tuple in the referencing relation must likewise occur in specified attributes of at least one tuple in the…
The values appearing in given attributes of any tuple in the referencing relation must likewise occur in specified attributes of at least one tuple in the referenced relation, according to _____ integrity constraint.
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Correct answer: (A) referential
Explanation
Referential integrity requires every foreign key value in the referencing relation to appear as a key value in the referenced relation.