A recursive foreign key is a:
2007
A recursive foreign key is a:
Answer: C. references its own relation — A recursive foreign key is a constraint where a column references the primary key of the same table. This enables self-referencing relationships, such as an…
- A.
references a relation
- B.
references a table
- C.
references its own relation
- D.
references a foreign key
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Correct answer: C
A recursive foreign key is a constraint where a column references the primary key of the same table. This enables self-referencing relationships, such as an employee hierarchy where a manager is also an employee in the same table.
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