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Re: SQLLDR performance?

From: Thomas Kyte <tkyte_at_us.oracle.com>
Date: Fri, 29 Jan 1999 18:13:06 GMT
Message-ID: <36bbf9f8.19647761@192.86.155.100>


A copy of this was sent to Greg Gershowitz <gregg_at_computex.com> (if that email address didn't require changing) On Fri, 29 Jan 1999 12:50:48 -0500, you wrote:

>
>I'm use sqlldr to reload some data. I think it's taking too long
>(around 4 hours for 1,000,000 rows). I've tried upping the bindsize, so
>it's commiting around 65 rows at a time. How much higher can I push
>this value? I'm running Oracle 8.0.4 on an Ultra 5 w/512 MB RAM and
>Solaris 2.6.1.
>
>Here's the command I'm using right now:
>sqlldr userid=$DBADMINID/$DBADMINPW control=$TMP_DIR/$ptablename.octl
>log=$TMP_DIR/$ptablename.log bad=$TMP_DIR/$ptablename.bad rows=10000
>bindsize=1048576 > $OUTFILE
>
>Thanks
>
>-Greg G

use direct=y if you can (read about the direct path mode of the loader).

also, do you see lots of "checkpoint not complete, cannot allocate new log" in your alert*.log file? If so, you need more log to handle the load and the load will go faster....  

Thomas Kyte
tkyte_at_us.oracle.com
Oracle Service Industries
Reston, VA USA

--
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