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1. How actually index will work ?
2. Why do people prefer mostly bitmap index and btree index
in datawarehouse ?
3. If I use the column in aggrigate functions like
max,min,count and avg and if I have a index created on that
column, will it increases the performance ?



1. How actually index will work ? 2. Why do people prefer mostly bitmap index and btree index in ..

Answer / mrs.priya

1.index file created separately(uses separate memory) apart
from the original file to increase performance
2. good performance
3. yes it increases the performance because index uses
separate memory

Is This Answer Correct ?    3 Yes 0 No

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