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Which one of the following is a procedural language?

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Which one of the following is a procedural language?

(a) Domain relational calculus

(b) Tuple relational calculus

(c) Relational algebra

(d) Query language

The question was asked in an online interview.

Question is taken from Relational Query Operations and Relational Operators in division The Relational Model of Database Management

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Best answer
Right answer is (c) Relational algebra

Best explanation: Domain and Tuple relational calculus are non-procedural language. Query language is a method through which database entries can be accessed.

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