Re: Anyone use bitmap indexes?
Date: 1997/12/19
Message-ID: <01bd0cc7$2c854a80$6163a182_at_s679560.student.twi.tudelft.nl>#1/1
Oliver Critchley <oliver.critchley_at_no.spam.please> wrote in article
<349175FC.6226_at_no.spam.please>...
> Tim Palmer wrote:
> >
> > Hi,
> >
> > Does anybody out there know anything about bitmap indexing. From what i
> > know of them they sound perfect for
> > many of the tables in our system. On a recent course i was told they
> > would work with oracle server 7.3.3 onwards, we use 7.3.2 - but ive
also
> > been told that they will work here as well. The fact that im sending
> > this note means they dont! Or at least when i try the 'create
> > index....etc' syntax with bitmap clause.
> >
> > In a nutshell, does anybody know what version of oracle (and if
> > applicable server configuration) is needed to get these things to work.
> >
> > Thanks in anticipation
> >
> > Tim Palmer
>
> Although I've never tried bitmap indexes myself, I believe that they work
with Oracle 7.3.* onwards.
> Furthermore, apparently they only work with the Enterprise edition of the
server and not with the
> Workgroup edition (although the documentation makes no mention of this
fact).
>
> Good luck!
>
> Oliver
>
Indeed they do not work with the WGS. The reason for that is that bitmap
indexes use the parallel query option, that is part of of EE but not of
WGS.
gvr.
Received on Fri Dec 19 1997 - 00:00:00 CET