Lee,
What version of the db is this? Bug 766095 generates
inaccurate avg_row_len for tables over 4GB (fixed in
8.0.6).
Is this a partitioned table and are you using FGAC
(fine grained access control)? There's a bug where
the entire table gets exported in the partition. I
can't remember whether it's only when exporting
individual partitions or the entire table though.
HTH,
- Anita
- Robertson Lee - lerobe <lerobe_at_acxiom.co.uk>
wrote:
> Well back down to earth with a bang again, back to
> work and the weather is
> miserable. I didn't see any replies to this last
> mail so I will repost. Any
> help or insight would be greatly appreciated.
>
> Regards
>
> Lee
>
>
> -----Original Message-----
> Sent: 11 May 2001 15:51
> To: Multiple recipients of list ORACLE-L
>
>
> OK,
>
> To answer a couple of questions, I did use compute
> statistics to get the
> stats. I did not use compress=y. The table should
> have been 420Mb according
> to the avg_row_len*num_rows calculation. The export
> file came out at 5.7Gb.
> When I imported it fell over at 1Gb. I set my
> initial extent to what I
> calculated it at earlier and next extent to 4Mb and
> tablespace (1Gb) filled
> up.
>
> I'm still confused as to how this happened.
>
> Never mind its the weekend, out to a top class
> restaurant tonight, its the
> English FA Cup Final on Saturday (lots of beer) and
> the weather is
> glorious......
>
> Oracle ? Oracle Who !!!!
>
> Regards
>
> Lee
>
>
> -----Original Message-----
> Sent: 10 May 2001 17:01
> To: Multiple recipients of list ORACLE-L
>
>
> When you export it do not! use compress=Y.
>
> When you import the table be sure to prebuild the
> table with the initial and
> next extent sizes to be appropriate for this table.
>
> This will reorg it unstead of putting it back the
> way it was.
>
> Ruth
>
> ----- Original Message -----
> To: "Multiple recipients of list ORACLE-L"
> <ORACLE-L_at_fatcity.com>
> Sent: Thursday, May 10, 2001 11:31 AM
>
>
> > All,
> >
> > I have recently ran an analysis on a table and
> when calculating the table
> > size using num_rows*avg_row_len this came out at
> about 420Mb. Nothing
> > strange about that, however the amount of space
> this table is taking up is
> > about 4.6Gb !!!!!
> >
> > Instant case for a reorg I thought, however, I am
> currently exporting this
> > table and suddenly noticed that the dump file is
> now in excess of 1.5Gb
> and
> > still going strong.
> >
> > Does export merely backup the data or does it also
> backup other stuff
> > (unused blocks, preallocated etc.)
> >
> > Regards
> >
> > Lee Robertson
> >
> >
> >
> >
> > The information contained in this communication is
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> recipient
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> >
>
> --
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> Author: Ruth Gramolini
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> Author: Robertson Lee - lerobe
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Received on Tue May 15 2001 - 09:21:25 CDT
