Re: insert and commit 1000 records at a time

From: Mladen Gogala <mladen_at_wangtrading.com>
Date: Thu, 16 Oct 2003 09:59:34 -0800
Message-ID: <F001.005D364B.20031016095934@fatcity.com>

I believe that this would be the best solution: DECLARE
     RowCount NUMBER := 0;

BEGIN

     /* This will work if the RESOURCE table has the "parallel"
     attribute set. In 8i, table needs to be partitioned as well */

     EXECUTE IMMMEDIATE 'ALTER SESSION ENABLE PARALLEL DML';
     SELECT Count(*)
     INTO   RowCount
     FROM   RQMT;

     IF RowCount > 0 THEN

         INSERT /*+ APPEND */ INTO RESOURCE
             SELECT  Resource_Id, Classification
             FROM RQMT;

         RowCount      := SQL%RowCount;

         DBMS_OUTPUT.PUT_LINE ('TABLE Resource: '  || RowCount || '  

Rows
transitioned.');

         COMMIT;
     ELSE
         DBMS_OUTPUT.PUT_LINE ('TABLE Resource is empty. No data
transitioned.');
     END IF;

     EXCEPTION
     WHEN OTHERS THEN
         Raise NOT_LOGGED_ON;

END;
/
On 10/16/2003 01:29:33 PM, rgaffuri_at_cox.net wrote:
> yeah dont commit every 1000 records and do it in one shot. this is
> going to be much slower.
>
> why do you want to do it this way? Ive done 100m inserts with just an
> insert select and one commit.
> >
> > From: Maryann Atkinson <maryann_30_at_yahoo.com>
> > Date: 2003/10/16 Thu AM 11:54:33 EDT
> > To: Multiple recipients of list ORACLE-L <ORACLE-L_at_fatcity.com>
> > Subject: insert and commit 1000 records at a time
> >
> > I have 2 tables, Rqmt and Resource, same structure.
> >
> > I need to take all almost-one-million records from Rqmt and
> > insert them to Resource. So far this worked ok:
> >
> > DECLARE
> > RowCount NUMBER := 0;
> >
> > BEGIN
> > SELECT Count(*)
> > INTO RowCount
> > FROM RQMT;
> >
> > IF RowCount > 0 THEN
> >
> > INSERT INTO RESOURCE
> > SELECT Resource_Id, Classification
> > FROM RQMT;
> >
> > RowCount := SQL%RowCount;
> >
> > DBMS_OUTPUT.PUT_LINE ('TABLE Resource: ' || RowCount || '
> Rows
> > transitioned.');
> > COMMIT;
> > ELSE
> > DBMS_OUTPUT.PUT_LINE ('TABLE Resource is empty. No data
> > transitioned.');
> > END IF;
> >
> > EXCEPTION
> > WHEN OTHERS THEN
> > Raise;
> > END;
> > /
> >
> >
> > But now I need to commit every 1000 records. Any suggestions as to
> > what would be the best way? I dont think ROWNUM would help here,
> > because it would pick the same 1000 records every time, causing
> > primary key violation...
> >
> >
> > thx
> > maa
> >
> > --
> > Please see the official ORACLE-L FAQ: http://www.orafaq.net
> > --
> > Author: Maryann Atkinson
> > INET: maryann_30_at_yahoo.com
> >
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> services
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> --
> Please see the official ORACLE-L FAQ: http://www.orafaq.net
> --
> Author: <rgaffuri_at_cox.net
> INET: rgaffuri_at_cox.net
>
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>

Mladen Gogala
Oracle DBA

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-- 
Please see the official ORACLE-L FAQ: http://www.orafaq.net
-- 
Author: Mladen Gogala
  INET: mladen_at_wangtrading.com

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Received on Thu Oct 16 2003 - 12:59:34 CDT