No output w. DBMS_OUTPUT.PUT_LINE (within SQL*Plus)

From: Fred Zimmerman <silversw2000_at_yahoo.com>
Date: 28 Oct 2002 10:04:13 -0800
Message-ID: <a695a242.0210281004.4e3f0@posting.google.com>

My script below is NOT outputting any text to SQL*Plus, w. DBMS_OUTPUT.PUT_LINE w. NO errors either.

What is the problem?

SQL>DECLARE
  tempTotal NUMBER;
  FUNCTION orderTotal(orderId IN INTEGER)

     RETURN NUMBER
  IS

     orderTotal NUMBER;
     tempTotal NUMBER;
  BEGIN
     SELECT SUM(i.quantity * p.unitprice) IN
        FROM practice04.items i, practice04.
        WHERE i.o_id = orderId
   AND i.p_id = p.id
     GROUP BY i.o_id;
     RETURN orderTotal;

  END orderTotal;
  BEGIN

     DBMS_OUTPUT.PUT_LINE('Order 1 Total: ' 
     tempTotal := orderTotal(2);
     DBMS_OUTPUT.PUT_LINE('Order 2 Total: ' 

  END;
 /

SQL procedure successfully completed.

SQL> Received on Mon Oct 28 2002 - 12:04:13 CST