In relational databases, which of the following integrity constraint is…
2024
In relational databases, which of the following integrity constraint is specified between two relations and is used to maintain the consistency among tuples in the two relations?
Answer: D. Referential integrity constraint — A referential integrity constraint connects two relations and keeps tuples consistent through foreign-key references.
- A.
Entity integrity constraint
- B.
Semantic integrity constraint
- C.
Functional integrity constraint
- D.
Referential integrity constraint
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Correct answer: D
A referential integrity constraint connects two relations and keeps tuples consistent through foreign-key references.
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