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Re: Locally managed tablespaces

From: Tim Sawmiller <sawmillert_at_state.mi.us>
Date: Tue, 30 Jan 2001 06:47:36 -0800
Message-ID: <F001.002A4971.20010130062021@fatcity.com>

Well you can STILL choose the initial/next values for a locally managed tablespace, so choose a reasonable one.

>>> SMALKUNS_at_SYSTEMS.TEXTRON.com 01/30/01 07:35AM >>>
I have always been concerned with fragmentation of tablespaces, whether it be lots of extents, honeycomb or
bubble fragmentation. Now I am reading that in Oracle 8i with the use of locally-managed table spaces,
these concerns are a thing of the past as Oracle now uses bit maps within the tablespaces themselves to
do space management. This seems foreign to me that even though Oracle will use up all the space in
the tablespaces with no coalescing, it is OK that extents will go into the thousands with no performance degradation. Could folks who are currently using locally managed tablespaces please comment on how well it
is working for them and if they have experienced any problems in using them. Thanks
Skip
 Here is a good white paper on the subject. http://www.embarcadero.com/news/white_papers.htm

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Author: Malkuns, Skip
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Author: Tim Sawmiller
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Received on Tue Jan 30 2001 - 08:47:36 CST

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