Re: odbc + refcursor + vb6

Jose J. Ayala Pineda wrote:
> 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

How about inserting a line here
Set Rst = Rst.NextRecordset
?

> 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;