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Bit Map Indexes

From: Gil Givati <atlsyb1_at_inter.net.il>
Date: 1997/12/11
Message-ID: <3490090C.6747@inter.net.il>#1/1 







Hi, 


I'm looking into using BitMap indexes in a DW environment. 
can someone please tell me if i have more then one B.M index involved in 
a query, will orcle use all of them and go to the data, or choose just 
one ?


what if the query involves bitmap index and an ordinary index (with very 
low selectivity) ?



Gil.
Received on Thu Dec 11 1997 - 00:00:00 CST












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