Procedure with collection as parameter- help required

Question

I am having records as below:
Add Rol Time
A1     8:20
A2     8:25
A2 R1 8:29
A2 R1 8:32
A3     8:45
A3     8:46
A3     8:50
I have a scenario where I need to calculate the average_time based on one scenario.
The formulae we are having to calculate the average is:
(min(next_address)-max(previous_address))*0.55
i.e., For example for record 5, (8:45 - 8:32)*0.55.
Here in my procedure I am passing Add's and Rol's as collection Input parameters.
How can I go and calculate the average_time value's now.
I tried with
For I in Add.count
loop
     v_avg_time := (Add(I+1)-Add(I))*0.55;
end loop;
When I want to test this, I am not knowing how to pass values to the procedure.
Please tell me how to execute the procedure and how to acheive the results.
Thanks in advance
Regards
Raghu

Answer 1

Try like this.
SQL> create or replace type my_num as table of number
  2  /
Type created.
SQL> create or replace procedure my_proc (pNum my_num)
  2  as
  3     lsum number;
  4     lavg number;
  5  begin
  6     select sum(column_value), avg(column_value)
  7       into lsum, lavg
  8       from table(cast(pNum as my_num));
  9
10     dbms_output.put_line('SUM: ' ||lSum);
11     dbms_output.put_line('AVG: ' ||lAvg);
12  end;
13  /
Procedure created.
SQL> declare
  2     lNum my_num := my_num(1,2,3,4,5,6,7,8,9,10);
  3  begin
  4     my_proc(lNum);
  5  end;
  6  /
SUM: 55
AVG: 5.5
PL/SQL procedure successfully completed.Thanks,
karthick.