Question

It is usually a bad idea to create indexes on every attribute because

Answer 1

what is ur question....I don't understand

Answer 2

It is usually a bad idea to create indexes on every attribute because

*Each index needs additional disk I/O overhead and CPU time and during deletions and inserts.

*Indexes on attributes other than primary keys may have to be changed when updates take place, although a primary key index might not need the change.

*Each additional index requires extra storage space.