A dependency exist between two columns when

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Mr. Dubey

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📊 Database Management System (DBMS)

Q. A dependency exist between two columns when

(A) together they constitute a composite key for the table
(B) knowing the value in one column determines the value stored in another column
(C) the table is in 3nf
(D) together they constitute a foreign key

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✅ Correct Answer: (A) together they constitute a composite key for the table

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