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For select operation the ________ appear in the subscript and the ___________ argument appears in the paranthesis after the sigma.

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For select operation the ________ appear in the subscript and the ___________ argument appears in the paranthesis after the sigma.

(a) Predicates, relation

(b) Relation, Predicates

(c) Operation, Predicates

(d) Relation, Operation

The question was asked in an interview for internship.

My query is from Relational Algebra in chapter Relational Algebra of Database Management

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Correct answer is (a) Predicates, relation

To explain: None.

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