Gate CS-2015-1 Question Paper With Solutions

Q. 17 Select operation in SQL is equivalent to

(A) the selection operation in relational algebra

(B) the selection operation in relational algebra, except that select in SQL retains
duplicates

(C) the projection operation in relational algebra

(D) the projection operation in relational algebra, except that select in SQL
retains duplicates

Answer: (D)

Explanation:

Gate CS-2015-1 Question Paper With Solutions

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