What are composite indexes ?
A. Are those which are composed by database for its internal use
B. A composite index is a combination of index on 2 or more columns
C. Composite index can never be created
D. None of the mentioned
Answer:A
What are composite indexes ?
A. Are those which are composed by database for its internal use B. A composite index is a combination of index on 2 or more columns C. Composite index can never be created D. None of the mentioned
Explanation: A composite index is an index on two or more columns of a table.