BitMap Indexes
From: Gil Givati <atlsyb1_at_inter.net.il>
Date: 1997/12/11
Message-ID: <349008D4.15A8_at_inter.net.il>#1/1
Date: 1997/12/11
Message-ID: <349008D4.15A8_at_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 CET