odbc + refcursor + vb6

From: "Jose J(dot) Ayala Pineda" <jayala(at)cromotex(dot)com(dot)pe>
To: <pgsql-odbc(at)postgresql(dot)org>
Subject: odbc + refcursor + vb6
Date: 2009-05-04 22:23:07
Message-ID: A02ED620BEA84DAD9CA94AB6B73AFABD@depsis01
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Hi everybody, i have migrated one vb6 app from mssql2000 to postgresql 8.3, my database have a lot of stored functions.. i use refcursor type to return data from it. when i use the oledb driver it's ok.. well with few records ok.. but with thousands its very slow.. so i try the odbc driver.. and it works fine, but, not recognize my refcursor type only record type. With refcursor type I only receive the name of my refcursor. what is the solution to fetch the records in my refcursor.
I use tha next vb6 code for example

Conn.BeginTrans
Cmd.ActiveConnection = Conn
Cmd.CommandText = "select
kardexf('017033','01/04/2009','30/04/2009','data');FETCH ALL IN data;"
Set Rst = Cmd.Execute
Do Until Rst.EOF
Me.List1.AddItem Rst.Fields(0) 'Rst!Movimiento
Rst.MoveNext
Loop
Rst.Close
Conn.CommitTrans

CREATE OR REPLACE FUNCTION "public"."dvalss_kardexf" (vcodalm char, vcodprod char, vfechaini timestamp, vfechafin timestamp, out data "pg_catalog"."refcursor") RETURNS "pg_catalog"."refcursor" AS
$body$
DECLARE
--data refcursor;
BEGIN
OPEN data FOR
SELECT * FROM cromoadmin.CentroCto CC RIGHT JOIN
(cromoadmin.DetValesAlm Det INNER JOIN cromoadmin.Vales Cab ON
DEt.Sucr_codigo = cab.Sucr_codigo and
Det.VALE_NumVale = Cab.VALE_NumVale AND
Det.ALMA_Codigo = Cab.ALMA_Codigo AND
Det.TIPO_TabVale = Cab.TIPO_TabVale AND
Det.TIPO_CodVale = Cab.TIPO_CodVale)
ON CC.Cent_cod=Cab.CENT_Cod
INNER JOIN cromoadmin.Catalogos ON
Det.SUCR_Codigo = Catalogos.SUCR_Codigo AND
Det.PROD_CodProd = Catalogos.PROD_CodProd AND
Det.ALMA_Codigo = Catalogos.ALMA_Codigo INNER JOIN cromoadmin.Tipos Tip ON
CAb.TIPO_TabVale = Tip.TIPO_CodTabla AND
Cab.TIPO_CodVale = Tip.TIPO_CodTipo
LEFT OUTER JOIN cromoadmin.CtaCtePRov CCP on ccp.ccpr_nroTran = det.ccpr_nroTran and
ccp.SUCR_Codigo = det.SUCR_Codigo
WHERE Det.ALMA_Codigo = vCodAlm And
Det.PROD_CodProd = vCodProd And
Cab.VALE_FecEmi BetWeen vFechaIni AND vFechaFin And
Cab.VALE_Estado <>'X' ORDER BY Cab.VALE_FecEmi, Cab.VALE_Efecto, Cab.TIPO_CodVale Desc;
RETURN;
END;
$body$
LANGUAGE 'plpgsql'
VOLATILE
CALLED ON NULL INPUT
SECURITY INVOKER
COST 100;

Thanks a lot.

---
Jose J. Ayala Pineda (a.k.a. 1nk(at)H@ck)
MSN Messenger: jjap(at)hotmail(dot)com
URL/Blog: http://inkahack.blogspot.com
"Si tú tienes una manzana y yo tengo una manzana y las intercambiamos, entonces ambos aún tendremos una manzana. Pero si tú tienes una idea y yo tengo una idea y las intercambiamos, entonces ambos tendremos dos ideas".
George Bernard Shaw

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