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With the use of secondary index we can make a program run
faster but we are advised not to use secondary index why is
that so??
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Answer Posted / anju
B'coz secondary index is just like a copy of data base
table reduced to specific fields.So,insertion and updation
in database become slow after creation of secondary index
where as read from table become fast.
This is b'coz additional indexes can also place a load on
the system since they must be adjusted each time the table
contents change. Each additional index therefore slows down
the insertion of records in the table
| Is This Answer Correct ? | 16 Yes | 5 No |
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