- AUnion
- BJoin
- CCartesian product
- DAll of these
Relational Algebra and Calculus - Quiz
- AIt 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.
- BIt 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.
- CIt selects all the tuples satisfying the join condition along with the tuples for which no tuples from the other relation satisfy the join condition.
- DNone of these
- AThe relation R for which tuple variable T is defined.
- BA condition P(T) on the basis of which a set of tuples is to be retrieved.
- CAn attribute list specifying the required attributes to be retrieved for the tuples satisfying the given condition.
- DAll of these
- ASelect A
- BSelect B
- CSelect C
- DSelect D All of these
- AJoin
- BDivision
- CCartesian product (multiplication)
- DProjection
- Am + n
- Bm - n
- Cm * n
- Dn - m
- AOuter join
- BLeft outer join
- CInner join
- DRight outer join
- AJoin, cartesian product (multiplication), division
- BProject, restriction, union
- CUnion, intersection, minus
- DUpdate, insert, delete
- ASelect operation
- BProject operation
- CRename operation
- DNone of these
- ANone of these
- BBoth (a) and (b)
- CAssociative
- DCommutative
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Relational Algebra and Calculus - Quiz
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- A. Union
- B. Join
- C. Cartesian product
- D. All of these
Remarks:
Explanation: 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
Remarks:
Explanation: 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.
- 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
Remarks:
Explanation: All of these
- A. Select A
- B. Select B
- C. Select C
- D. Select D All of these
Remarks:
Explanation: All of these
- A. Join
- B. Division
- C. Cartesian product (multiplication)
- D. Projection
Remarks:
Explanation: Join
- A. m + n
- B. m - n
- C. m * n
- D. n - m
Remarks:
Explanation: m + n
- A. Outer join
- B. Left outer join
- C. Inner join
- D. Right outer join
Remarks:
Explanation: Inner join
- A. Join, cartesian product (multiplication), division
- B. Project, restriction, union
- C. Union, intersection, minus
- D. Update, insert, delete
Remarks:
Explanation: Union, intersection, minus
- A. Select operation
- B. Project operation
- C. Rename operation
- D. None of these
Remarks:
Explanation: Project operation
- A. None of these
- B. Both (a) and (b)
- C. Associative
- D. Commutative
Remarks:
Explanation: Associative