In relational algebra, what command causes only certain columns to be included in the new table?
A) SELECT
B) DELETE
C) PROGRAM
D) PROJECT

Question

Quizplus · Accepted Answer

The PROJECT command in relational algebra is used to project or select specific columns from a table and create a new table consisting of only those selected columns. Therefore, option D is the correct choice. SELECT is used to select specific rows based on certain conditions, DELETE is used to remove rows from a table and PROGRAM is not a valid command in relational algebra.

In Relational Algebra, What Command Causes Only Certain Columns to Be