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Re: Inserting data from one database to another using stored functions

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Hi Eric,

 

I have tested your reply and it works J!

 

Thank you for your help!

 

By the way, here’s what I did with the calling stored function (“sf DBa”):

CREATE OR REPLACE FUNCTION sp_update_serialnumber(pserialnumber character varying, pActivityId integer)

  RETURNS void AS

$BODY$

DECLARE

            r record;

BEGIN

                UPDATE TABLESSERIALNUM SET SerialNumber = pSerialNumber WHERE ActivityID = pActivityId ;

 

                BEGIN

                                PERFORM * FROM dblink('dbname=testdb port=5432 user=postgres password=123456', 'SELECT * FROM sp_insert_detailtable('|| pActivityId ||', '|| pserialnumber ||')') as r(result character varying(50));

                END;

END;

$BODY$

  LANGUAGE plpgsql VOLATILE

  COST 100;

 

Regards,

Benjie

 

From: Eric McKeeth [mailto:eldin00@xxxxxxxxx]
Sent: Friday, January 07, 2011 4:03 PM
To: Benjie Buluran
Cc: pgsql-general@xxxxxxxxxxxxxx
Subject: Re: Inserting data from one database to another using stored functions

 

On Thu, Jan 6, 2011 at 6:56 PM, Benjie Buluran <benjie.buluran@xxxxxxxxxxxxxxxxxxxx> wrote:

Hi pgSQL peeps!

 

I’m stumped on this question for over 3 days now.

 

I need to run a stored function in Database A (“sf DBa”) which calls a stored function in Database B (“sf DBb”).

 

 

                BEGIN

                                PERFORM dblink_connect('dbname=testdb port=5432 user=postgres password=123456');

                                PERFORM dblink_exec('SELECT sp_insert_detailtable('|| pActivityId ||', '|| pserialnumber ||')');

                                PERFORM dblink_disconnect();

                END;

END;

$BODY$

  LANGUAGE plpgsql VOLATILE

  COST 100;

 

Here’s “sf DBb”:

CREATE OR REPLACE FUNCTION sp_insert_detailtable(pactivityid integer, pserialnumber character varying)

  RETURNS void AS

$BODY$

BEGIN

               

                INSERT INTO DETAILTABLE(LogID, LogDetailSeq)

                VALUES(pactivityid, pserialnumber);

END;

$BODY$

  LANGUAGE plpgsql VOLATILE

  COST 100;

 

I’m using the DEBUG function in pgAdmin, and I keep getting the “statement returning results not allowed” error in PERFORM dblink_exec('SELECT sp_insert_detailtable('|| pActivityId ||', '|| pserialnumber ||')'); in this line.

 

Your help is highly appreciated!

 

Thanks and Best Regards,

Benjie


dblink_exec is only for commands which return no result. Try replacing that line with the following and see if it helps:

PERFORM dblink('SELECT sp_insert_detailtable('|| pActivityId ||', '|| pserialnumber ||')');

-Eric


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