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Question
What are composite indexes ?
Options:
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: Option B


A composite index is a combination of index on 2 or more columnsA composite index is an index on two or more columns of a table.



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