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The most commonly used operation in relational algebra for projecting a set of tuple from a relation is

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The most commonly used operation in relational algebra for projecting a set of tuple from a relation is

(a) Join

(b) Projection

(c) Select

(d) Union

The question was asked in an interview for internship.

My query is from Relational Query Operations and Relational Operators topic in section The Relational Model of Database Management

1 Answer

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Best answer
Correct answer is (c) Select

To explain: Select is used to view the tuples of the relation with or without some constraints.

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