Identify the operation which is NOT one of the parts of the fivebasic set operations in relational algebra?

? Join

? Union

? Cartesian Product

? Set Difference

Join

Explanation:

Five basic set operators in relational algebra are as follows:

Selection - tuple selection Projection - extract columns Cartesian product - cross product of relations Set union - union of two relations Set difference - minus operation on two relations

As we can see, Join is not part of the basic set operations but it is implemented using the Cartesian Product operator.