Relational Algebra and Calculus - Quiz

  • A The relation R for which tuple variable T is defined.
  • B A condition P(T) on the basis of which a set of tuples is to be retrieved.
  • C An attribute list specifying the required attributes to be retrieved for the tuples satisfying the given condition.
  • D All of these
  • A It includes all the tuples from both the relations satisfying the join condition along with all the tuples in the right relation that do not have a corresponding tuple in the left relation.
  • B It includes all the tuples from both the relations satisfying the join condition along with all the tuples in the left relation that do not have a corresponding tuple in the right relation.
  • C It selects all the tuples satisfying the join condition along with the tuples for which no tuples from the other relation satisfy the join condition.
  • D None of these