SELECT *
FROM TABLE (SVB_NETTING.build_netting_list  
(
iNETTINGNUMBER IN NUMBER,
dDATENETTING IN DATE,
sUSERCREATE IN VARCHAR2

))RETURN RESULT_ERROR_NT

create type HCF_RESULT_ERROR_NT as table of HCF_RESULT_ERROR_T;

create or replace function build_banknetting_list  
return HCF_RESULT_ERROR_NT
is
...

select * from table(build_banknetting_list());

FUNCTION build_banknetting_list  
(
 iNETTINGNUMBER IN NUMBER,
 dDATENETTING IN DATE,
 sUSERCREATE IN VARCHAR2
 
) RETURN RESULT_ERROR_NT
IS
retval RESULT_ERROR_NT := RESULT_ERROR_NT();
ErrorRec RESULT_ERROR_T := NEW RESULT_ERROR_T;
BEGIN

FOR nrec IN (
                SELECT BL.ID,
                       BL.CUSTID,
                       BL.BANKNAME,
                       BL.ID_SVB_GROUPTYPELIST,
                       GTLD.DAYSTART,
                       GTLD.DAYEND                  
                  FROM SVB_BANKLIST BL
                  INNER JOIN SVB_GROUPTYPELIST GTL
                     ON BL.ID_SVB_GROUPTYPELIST = GTL.ID
                  INNER JOIN SVB_GROUPTYPELISTDAYS GTLD
                     ON GTL.ID = GTLD.ID_SVB_GROUPTYPELIST
                 WHERE GTLD.DAYNUMBER = to_char(dDATENETTING,'D')  
            )
 LOOP  
   ErrorRec := SVB_BLIZKO_NETTING_LIB.ADD_BANK_TO_BANKNETTING (
                                   iNETTINGNUMBER ,
                                   nrec.ID ,
                                   dDATENETTING ,
                                   nrec.DAYSTART,
                                   nrec.DAYEND,  
                                   sUSERCREATE ,
                                   nrec.CUSTID,
                                   nrec.BANKNAME
                                                               );
   IF ErrorRec.CODE IS NOT NULL
   THEN BEGIN                              
          retval.extend;
          retval(retval.last) := ErrorRec;
        END;
   END IF;                                      
                               

 END LOOP;
 RETURN retval;
END build_banknetting_list;

SELECT *
FROM TABLE (SVB_BLIZKO_NETTING.build_banknetting_list  
( :NETTINGNUMBER,
 :DATENETTING,
  user
))

dsHB.Params[0].AsNumber := 10;
dsHB.Params[1].AsDate := 08-12-2008;

ORA-22905 cannot access rows from a non-nested table item

Cause: An attempt was made to access rows of an item whose type is not known at parse time or that is not of a nested table type.

Action: Use CAST to cast the item to a nested table type.

SELECT *
FROM TABLE (cast(SVB_BLIZKO_NETTING.build_banknetting_list  
( :NETTINGNUMBER,
:DATENETTING,
 user
) as YourFunctionsType))

procedure  TfmHBListBank.Set_DataSet(bActive : Boolean);
var  iID : integer;
iData : STRING;
i   : integer;
iSelectedCount : integer;
begin
iSelectedCount := fmHBBankNetting.gBaseDBtv.Controller.SelectedRecordCount;
if iSelectedCount < 1 then exit;
 if iSelectedCount > 0 then
 begin
for i := 0 to iSelectedCount -1 do
iID := fmHBBankNetting.gBaseDBtv.Controller.SelectedRecords[i].Values[fmHBBankNetting.g BaseDBtv.GetColumnByFieldName('ID').Index];
DSHB.ParamByName('NETTINGNUMBER').AsInteger := iID ;
end;