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Which of the following is the oldest database model?

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Which of the following is the oldest database model?

(a) Relational

(b) Deductive

(c) Physical

(d) Network

I have been asked this question during a job interview.

Origin of the question is Query Processing in division Query Processing Techniques of Database Management

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The correct answer is (d) Network

The best I can explain: The network model is a database model conceived as a flexible way of representing objects and their relationships.

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