Passing a Parameter to the Procedure and changing it in the Procedure

Question

Hi all,
I am trying to pass a parameter to a procedure like this.
PROCEDURE FLASH_PHY
(date_begin IN DATE, date_end IN DATE)
IS
I am trying to do SELECT and INSERT based on the date range passed in the procedure as mentioned above. And I am trying to do something like this.
SELECT NVL(sum(charges),0),count(summary_balances_id)
INTO lnu_charges_6months,c_summary
FROM SUMMARY_BALANCES
WHERE period_begin BETWEEN ADD_MONTHS((date_begin), -6) -- AND ADD_MONTHS((date_end), -1);
UPDATE summary_balances
SET cummulative_charges_6mo = lnu_charges_6months;
how should I do this parameter change. Right now if I use this select statement than it does not return anything as the parameter is passed on the procedure level. I am under the impression that when you pass a parameter to the procedure like this you can't change it into the procedure.
PLEASE GUIDE. Thanks a bunch. I really appreciate it.

Answer 1

From what I understand your variables that are passed into the
procedure can be manipulated as local variable to the procedure.
Here is my interpretation of what your attempting to do:
create or replace procedure A (x in number) IS
yes varchar2(3) := 'No';
begin
dbms_output.put_line('Start value for yes:'||yes);
select 'yes' into yes from dual where x+1 = 2;
dbms_output.put_line('End value for yes:'||yes);
end;
Call the procedure called "A" passing in a "1".
EG:
BEGIN
A(1);
END;
Does this answer your question?
,Russ