Oracle-L: RE: insert and commit 1000 records at a time

From: Kevin Toepke <ktoepke_at_rlcarriers.com>
Date: Fri, 17 Oct 2003 12:54:35 -0800
Message-ID: <F001.005D3826.20031017125435@fatcity.com>

Assuming that the resource_id column is the PK (or at least unique) of the RQMT table something like this should work (albeit slowly). Its missing some definitions, but this should give you an idea on how you _might_ proceed

Kevin

DECLARE

    RowCount       NUMBER        := 0;
    MAX            NUMBER        := -99999999;

    CURSOR c_src (id IN NUMBER) IS
        SELECT *
        FROM   (SELECT resource_id, classification
                FROM   rqmt
                WHERE  resource_id > id
                ORDER BY resource_id
               )
        WHERE  rownum <= 1000;

BEGIN
    SELECT Count(*)
    INTO RowCount
    FROM RQMT;     IF RowCount > 0 THEN

        LOOP
            OPEN  c_src(max);
            FETCH c_src BULK COLLECT INTO tbl_resource_id,

tbl_classification;

            IF (c_src%ROWCOUNT = 0) THEN
                EXIT LOOP;
            END IF;

            Max = tbl_resource_id(tbl_resource_id.MAX)

            FORALL j IN tbl_resource_id.FIRST .. tbl_resource_id.LAST
                INSERT INTO RESOURCE VALUES
                    tbl_resource_id(j), tbl_classification(j);

            DBMS_OUTPUT.PUT_LINE ('TABLE Resource: '  || sql%Rowcount || '
Rows transitioned.');
            COMMIT;
            CLOSE c_src;
     ELSE
         DBMS_OUTPUT.PUT_LINE ('TABLE Resource is empty. No data
transitioned.');
     END IF;

     EXCEPTION
     WHEN OTHERS THEN
         Raise;

END;
/

-----Original Message-----
Sent: Thursday, October 16, 2003 11:55 AM To: Multiple recipients of list ORACLE-L

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

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Author: Maryann Atkinson
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Author: Kevin Toepke
INET: ktoepke_at_rlcarriers.com

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