Which of the following is NOT a basic element of all versions of the E-R model?

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Mr. Dubey

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📊 Database Management System (DBMS)

Q. Which of the following is NOT a basic element of all versions of the E-R model?

(A) Entities
(B) Relationships
(C) Attributes
(D) Primary key

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✅ Correct Answer: (D) Primary key

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