Example of Usage of PlaceHolder Column

function CF_Cal_MaxPaymentFormula return Number is
begin
  if :Payments=:CS_Max_Pay then
  :CP_MAX_Payer:= :vendor_name;
  end if;
  return (1);
end;

--take CF_CalMaxPaymentFormul as group Level in group
--CP_MAX_Payer is a report level out side the group placeholder column with data type Character 80
--CS_Max_Pay is a report level Summary Column having maxiumn Payments using max function