Using procedure with multiple out variables in a query

Question

Hi,
We have a procedure that is time-consuming, which returns 4 variables as out parameters:
procedure calc_values(id in number, val1 out number, val2 out number, val3 out number, val4 out number) isThe id uniquely identifies an product in our database.
I would like to use this in a query (or view), in the form
select s.id, val1, val2, val3, val4 from something s, product_table p
where s.id = p.idI have tried the following approach, but I am kinda stuck
* define a type
* define a table of this type
* write a wrapper function that calls this procedure and returns the results as a table
* pivot the table into columns
* join this with the product table
It feels like I am on the wrong track, i am having trouble to get the id from the product table back into the wrapper function.
Is there a better approach to this? I am on oracle 10g
Thanks!
Rob

Answer 1

Te below is my interpretation of what you asked to do. I don't really know that it is what you want to do or what you should do.
CREATE TYPE prod_vals_def
AS OBJECT
(VAL1      NUMBER,
  VAL2      NUMBER,
  VAL3      NUMBER,
  VAL4      NUMBER
create or replace
TYPE   prod_vals_tab
AS TABLE OF prod_vals_def;
CREATE FUNCTION pvals (p_prod_id  NUMBER)
RETURN prod_vals_tab PIPELINED
AS
  TYPE         ref0 IS REF CURSOR;
  cur0         ref0;
  out_rec      prod_vals_def
            := prod_vals_def(NULL,NULL,NULL,NULL);
BEGIN
  -- CASE replacing SELECT against table I'm not going to create
  CASE p_prod_id
    WHEN 1 THEN
      out_rec.val1 := 1;
      out_rec.val2 := 2;
      out_rec.val3 := 3;
      out_rec.val4 := 4;
    WHEN 2 THEN
      out_rec.val1 := 2;
      out_rec.val2 := 3;
      out_rec.val3 := 4;
      out_rec.val4 := 5;
    WHEN 3 THEN
      out_rec.val1 := 3;
      out_rec.val2 := 4;
      out_rec.val3 := 5;
      out_rec.val4 := 6;
    WHEN 4 THEN
      out_rec.val1 := 4;
      out_rec.val2 := 5;
      out_rec.val3 := 6;
      out_rec.val4 := 7;
    ELSE
      out_rec.val1 := 0;
      out_rec.val2 := 0;
      out_rec.val3 := 0;
      out_rec.val4 := 0;
  END CASE;
  PIPE ROW(out_rec);
END pvals;
WITH s_tab AS
  (SELECT 1 AS prod_id FROM dual
   UNION ALL
   SELECT 2 AS prod_id FROM dual
   UNION ALL
   SELECT 3 AS prod_id FROM dual
   UNION ALL
   SELECT 4 AS prod_id FROM dual
SELECT s.prod_id, p.val1, p.val2, p.val3, p.val4
FROM   s_tab s,
       TABLE(pvals(s.prod_id)) p
PROD_ID  VAL1     VAL2     VAL3     VAL4    
1        1        2        3        4       
2        2        3        4        5       
3        3        4        5        6       
4        4        5        6        7