Q7,Paper3,J13. The “PROJECT” operator of a relational algebra creates a new table that has always

(A) More columns than columns in original table

(B) More rows than original table

(C) Same number of rows as the original table

(D) Same number of columns as the original table

Answer C.

Explanation.

The PROJECT operation is used to select a subset of the attributes of a relation by specifying the names of the required attributes