WHERE construct in SQL is equivalent to following relational algebra operator ?

2026

WHERE construct in SQL is equivalent to following relational algebra operator ?

Answer: B. σThe WHERE clause in SQL is used to filter rows based on specified conditions. In relational algebra, this filtering operation corresponds to the selection…

  1. A.

    Π

  2. B.

    σ

  3. C.

    ×

  4. D.

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Correct answer: B

The WHERE clause in SQL is used to filter rows based on specified conditions. In relational algebra, this filtering operation corresponds to the selection operator (σ), which selects tuples that satisfy a given predicate.

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