| Bitmap indexes built on more cols. [message #188144] |
Thu, 17 August 2006 05:10 |
beporafaq
Messages: 1
Registered: August 2006
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Junior Member |
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I've to improve the access of many querys on a datawarehouse.
I'm finding a lot of bitmap indexes built on more columns but I think this is not a good idea because the bitmap is power when is used on single columns so I think it's better to build more separate little indexes (one for every cols).
What do you think about it?
I thank in advance for the answer.
Bye.
Beppe
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