How can i increse query performance other than creating aggregates

Hi,
i created one query and it will take more time to give a report i created aggregates but no use again it will take same so pls give me a option to increase the query performance.
bye .
sandhya.

Hi SANDHYA,
You can increase the query performance by using indices too. You can search a table for data records that satisfy certain search criteria faster using an index.
An index can be considered a copy of a database table that has been reduced to certain fields. This copy is always in sorted form. Sorting provides faster access to the data records of the table, for example using a binary search. The index also contains a pointer to the corresponding record of the actual table so that the fields not contained in the index can also be read.
Pls refer the follwoing links for more idea about indices
http://help.sap.com/saphelp_nw04/helpdata/en/9b/c743f5b40711d194f900a0c929b3c3/frameset.htm
Re: Bitmap vs BTree
How to create B-Tree and Bitmap index in SAP
Re: Cardinality
Line Item Dimesnion
I ve some good documents regarding indices...I would send them if i know ur mail id.
regards,
RV.

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