I believe the problem is not with a monotonically increasing index (which
should NOT be rebuilt as it is of no use) - rather it is with a
monotonically increasing index that is also being _deleted. This is typical
of indexes on FIFO-type tables such as the FND_CONCURRENT_REQUESTS in Apps
(any version). In the latter case, you should perform a 'one-time ' index
rebuild of such monotonically-increasing, followed by regular COALESCE of
the indexes to 'reclaim ' 'lost ' space. Jonathan/Richard Foote might have
something to add on this....
John Kanagaraj < > <
DB Soft Inc
Phone: 408-970-7002 (W)
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** The opinions and facts contained in this message are entirely mine and do
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>-- --Original Message-- --
>From: oracle-l-bounce@(protected)
>[mailto:oracle-l-bounce@(protected)] On Behalf Of Naveen,
>Nahata (IE10)
>Sent: Tuesday, February 17, 2004 11:24 PM
>To: oracle-l@(protected)
>Subject: RE: Rebuild Indexes
>
>
>John,
>
>Would it be advisable to go for Index rebuilds in case of
>index based on
>monotonically increasing columns? As much as I understand (and
>I must admit,
>i don 't know much about the internals of indexes), in case of
>such indexes
>the problem of 'leaf block split ' should not happen.
>
>Regards
>Naveen
>
> >-- --Original Message-- --
> >From: John Kanagaraj [mailto:john.kanagaraj@(protected)]
> >Sent: Wednesday, February 18, 2004 12:30 PM
> >To: 'oracle-l@(protected) '
> >Subject: RE: Rebuild Indexes
> >
> >
> >Vidya,
> >
> >If you are collecting (and storing) STATSPACK data, you might want to
> >baseline V$SYSSTAT values and look for spurts in 'leaf node
> >splits ' after
> >rebuilds....
> >
> >John Kanagaraj < > <
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