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Practice relational operations MCQ: Operation which is used to take union of tuples from relations that are not union compatible is classified as, with choices full union operation, join union operation, outer union operation, and inner union operation to learn online certificate courses. Practice merit scholarships assessment test, online learning relational operations quiz questions for competitive exams in computer science major for computer and information science.

MCQ: Operation which is used to take union of tuples from the relations that are not union compatible is classified as

1. FULL UNION operation
2. JOIN UNION operation
3. OUTER UNION operation
4. INNER UNION operation

C

MCQ: If matching tuples are not found, the kind of OUTER JOIN operation which keeps all the tuples of first and second relation is classified as

1. LEFT OUTER JOIN
2. FULL OUTER JOIN
3. HALF OUTER JOIN
4. DOWNWARD JOIN

B

MCQ: Operations which are used to enhance the power of expression of relational algebra includes

1. generalized projection
2. recursive closure operations
3. outer JOIN operations
4. all of above

D

MCQ: If the common attributes of two relations are classified as join attributes then the OUTER UNION must be equal to

1. LEFT OUTER JOIN
2. FULL OUTER JOIN
3. HALF OUTER JOIN
4. DOWNWARD JOIN

B

MCQ: If matching tuples are not found, the kind of OUTER JOIN operation which keeps all the tuples of second relation out of the two relations is classified as

1. UPWARD JOIN
2. DOWNWARD JOIN
3. LEFT OUTER JOIN
4. RIGHT OUTER JOIN

D