Devart Forums

Posted: **Mon 08 Aug 2005 16:48**

Hi, I work with D6.Update2, component ODACnet 4.50.3.24 and Oracle 9i and I have the following problem: When I erase all the data of an OraQuery1, he appears me the following message:

Debugger Exception Notification
Project prueba.exe raised exception class Exception with message "SQL statement doesn't return rows". Process stopped. Step or use Run to it continued.

Subsequently in the OraQuery1 where I have erased the data, I cannot add any registration, until I don't make a consultation previously, this also happens me every time that I insert a registration.

My question is, if somebody can tell me because if I erase the OraQuery1 with the order "DELETE FROM & tablename1", or I insert a registration by means of "INSERT INTO… ", he appears me this exception.

I use the following code:

Code: Select all

procedure TfLiq.Btn_borrar_todoClick(Sender: TObject);
begin
  Try
    fdm.OraQuery1.SQL.Clear;
    fdm.tbLiq.Open;
    fdm.OraQuery1.SQL.Text := 'DELETE FROM &tablename1';
    fdm.OraQuery1.MacroByName('TableName1').Value := 'desarrollo.ta_liquidaciones';
    fdm.OraQuery1.execute;
  except
    on E : Exception do
      ShowMessage(E.ClassName+' mensaje del error : '+E.Message);
  end;

Code: Select all

procedure  TfLiq.grabaSQLliq;
begin
  if fDM.OraQuery1.active=false then fDM.OraQuery1.active:=true;
  fdm.tbLiq.Open;
  fdm.OraQuery1.SQL.clear;
  fdm.OraQuery1.SQL.Text:=
    'INSERT INTO &tablename'+#13+
    '(A_BAJA, A_APLAZADA, C_NUM_OFICINA, N_NUM_YEAR, N_NUM_ORDEN,'+#13+
    ' N_NUM_BIS, N_NUM_FRAC, C_NIF, N_VERSION, A_NOMBRE, A_DIRECCION,'+#13+
    ' A_MUNICIPIO, C_COD_POSTAL, A_PROVINCIA, C_NIF_REPRESENTANTE)'+#13+
   ' VALUES '+#13+
   '(:A_BAJA, :A_APLAZADA, :C_NUM_OFICINA, :N_NUM_YEAR, :N_NUM_ORDEN,'+#13+
   ' :N_NUM_BIS, :N_NUM_FRAC, :C_NIF, :N_VERSION, :A_NOMBRE, :A_DIRECCION,'+#13+
   ' :A_MUNICIPIO, :C_COD_POSTAL, :A_PROVINCIA, :C_NIF_REPRESENTANTE)'+#13+
   'RETURNING'+#13+   
   ' N_NUM_ORDEN'+#13+
   'INTO'+#13+
   ' :N_NUM_ORDEN';

       fdm.OraQuery1.MacroByName('TableName').Value := 'Desarrollo.ta_liquidaciones';

       fdm.OraQuery1.ParamByName('C_NUM_OFICINA').AsString := num_oficina.text;
       fdm.OraQuery1.ParamByName('N_NUM_YEAR').AsString    := Num_year.text;
       fdm.OraQuery1.ParamByName('N_NUM_ORDEN').AsString   := Num_Orden.Text; 
       fdm.OraQuery1.ParamByName('N_NUM_BIS').AsString     := Num_bis.text;
       fdm.OraQuery1.ParamByName('N_NUM_FRAC').AsString    := num_frac.text;
       fdm.OraQuery1.ParamByName('C_NIF').AsString         := Nif.text;
       fdm.OraQuery1.ParamByName('N_VERSION').AsString     := Version.text;
       fdm.OraQuery1.ParamByName('A_NOMBRE').AsString      := Nombre.text;
       fdm.OraQuery1.ParamByName('A_DIRECCION').AsString   := Direccion.text;
       fdm.OraQuery1.ParamByName('A_MUNICIPIO').AsString   := Municipio.text;
       fdm.OraQuery1.ParamByName('C_COD_POSTAL').AsString  := Cod_postal.text;
       fdm.OraQuery1.ParamByName('A_PROVINCIA').AsString   := Provincia.text;
       fdm.OraQuery1.ParamByName('C_NIF_REPRESENTANTE').AsString  := nif_r.text;

       fdm.OraQuery1.prepared;
       fdm.OraQuery1.execute;
end;

Best regards,

Posted: **Tue 09 Aug 2005 07:19**

We cannot reproduce this problem with your code starting from a blank project. This error can happen if you call fdm.OraQuery1.Open and fdm.OraQuery1.SQL.Text is assigned with SQL text that does not return rows (such as DELETE... or INSERT...)

Posted: **Wed 10 Aug 2005 08:42**

The problem has remained resolved, the solution has been to utilize the component of ODAC OraSQL for the operations that do not return rows, instead of a OraQuery.

Thanks by the aid.

Best regards,

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