Re: ALTER TABLE MOVE command causes table to grow

From: Jeffrey Beckstrom <JBECKSTROM_at_gcrta.org>
Date: Thu, 05 Sep 2002 08:23:46 -0800
Message-ID: <F001.004C8981.20020905082346@fatcity.com>

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But that's 10% per block. If all of the blocks had used the pctfree area = then would have a lot of growth.

>>> JayMiller_at_TDWaterhouse.com 9/5/02 12:08:30 PM >>> Had an annoying surprise last week. A table had grown unexpectedly large and I scheduled a time over the weekend to move it to its own tablespace from my "medium" tablespace. =20

The table ended up growing 50%. I had anticipated it might grow somewhat given the PCTFREE of 10% but freeing up that space in the blocks should, = at
most, have caused it to grow by 10% (assuming that 10% was completely = full).

Does anyone have ideas as to why it would have grown by so much? Indexes are in a different tablespace and the only other change was from an extent size of 4 meg to one of 25 meg. Both are dictionary managed tablespaces. = =20

Oracle 8.1.7.2
Solaris 2.6

Thanks,
Jay Miller

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Please see the official ORACLE-L FAQ: http://www.orafaq.com --=20
Author: Miller, Jay
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that's 10% per block.  If all of the blocks had used the pctfree area = then=20
would have a lot of growth. >>> JayMiller_at_TDWaterhouse.com= =20
9/5/02 12:08:30 PM >>> Had an annoying surprise last week.&nbsp= ; A=20
table had grown unexpectedly large and I scheduled a time over the = weekend to=20
move it to its own tablespace from my "medium" tablespace.  =
 The=20

table ended up growing 50%.  I had anticipated it might grow=20 somewhat given the PCTFREE of 10% but freeing up that space in the = blocks=20
should, at most, have caused it to grow by 10% (assuming that 10% = was=20
completely full). Does anyone have ideas as to why it would have = grown by=20
so much?  Indexes are in a different tablespace and the only = other=20
change was from an extent size of 4 meg to one of 25 meg.  Both = are=20
dictionary managed tablespaces.  Oracle 8.1.7.2 Solaris=20 2.6 Thanks, Jay Miller -- Please see the official = ORACLE-L=20
FAQ: <A href=3D"http://www.orafaq.com">http://www.orafaq.com</A> -- =
 Author:=20

Miller, Jay   INET: JayMiller_at_TDWaterhouse.com Fat City = Network=20
Services    -- (858) 538-5051  FAX: (858) 538-5051 S= an=20
Diego, California        -- Public = Internet=20
access / Mailing=20

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-- 
Please see the official ORACLE-L FAQ: http://www.orafaq.com
-- 
Author: Jeffrey Beckstrom
  INET: JBECKSTROM_at_gcrta.org

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Received on Thu Sep 05 2002 - 11:23:46 CDT