To calculate costs

Question

Hi,
I'm using a summary column to calculate costs. I need to write a query to retrieve multiple values for costs and then add all of them up in the formula columns itself. I am a newbie. Could someone give me leads as to how to go abt with it? Thanks.

Answer 1

Do whatever you need to do in a formula column (PLSQL formula of a formula column):
function CF_1Formula return Number is
v_value1 number := 0;
v_value2 number := 0;
v_value3 number := 0;
begin
select sum(cost),
        a.country
   into v_value1
   from my_table a
  where a.country = :p_country; --a report parameter
v_value2 := :cs_cost; -- a summary column from a group below the one this cf_1 is in
select decode(:column1,'A',1,2)
   into value3
   from dual; -- a decode of the current value of column1
return v_value1 + v_value2 + v_value3;
end;