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Relational Model – 3

3. A Foreign Key is :

(a) A field in a table that matches a key field in another table.
(b) A field in a table that has the same name as a key field in another table.
(c) A field in a table that contains data that is also contained elsewhere in another table.
(d) None of these

Answer : (a)

Explanation : No answer description available for this question. Let us discuss.

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