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;