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RE: Export question.

From: Tim Sawmiller <sawmillert_at_state.mi.us>
Date: Tue, 15 May 2001 05:48:32 -0700
Message-ID: <F001.0030371A.20010515043552@fatcity.com>

Ok, I'll pretend I'm from Missouri (the Show Me State). What's the database block size? What's the average row size? How many rows? What are the pctused and pctfree values? Are you using any weird data types (like LONG, RAW, that kind of stuff). Are you sure you are only exporting the one table? Show us everything please, as I sip my morning coffee...

>>> lerobe_at_acxiom.co.uk 05/15/01 05:31AM >>>
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

> 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
>
>
>
>
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Author: Ruth Gramolini
  INET: rgramolini_at_tax.state.vt.us 

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Author: Robertson Lee - lerobe
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Author: Robertson Lee - lerobe
  INET: lerobe_at_acxiom.co.uk 

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Author: Tim Sawmiller
  INET: sawmillert_at_state.mi.us

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Received on Tue May 15 2001 - 07:48:32 CDT

Original text of this message

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