What type of join is needed when you wish to include rows that do not have matching values ?
A. Equi-join
B. Natural join
C. Outer join
D. All of the Mentioned
Answer:A
What type of join is needed when you wish to include rows that do not have matching values ?
A. Equi-join B. Natural join C. Outer join D. All of the Mentioned
Explanation:OUTER JOIN is the only join which shows the unmatched rows.