Question

Natural Join can also be termed as _______ .

• A. combination of Union and Cartesian Product
• B. combination of Selection and Cartesian Product
• C. combination of Projection and Cartesian Product
• D. combination of Projection and Union

Hint:

Natural joins are commonly used in relational databases to combine data from multiple tables based on common attributes.

Answer 1

The Correct Option is C

A natural join in relational algebra can be viewed as a combination of a projection and a Cartesian product. It combines rows from two relations by matching the values of common attributes and then applying a projection to remove duplicate columns.