Stored Procedure Output Issue in Query Template

Question

Hi,
We have written a stored procedure which returns 3 outputs which are of type CLOB. Whenever we call the procedure from query template it gives an error Wrong number or type of parameters. It seems that we need to pass some variables which are of type clob to the procedure while calling which we cannot do as per my knowledge in query template.
Even if we are able to get the output we will not be getting complete output since the out put values are of type CLOB.
Can you guide me how to achive this
Thanks,
Shalaka

Answer 1

Hi,
Sometime back i faced the similar problem. But I used oracle pipelined functions to achieve this....
The basic thing is it will break the chunk into records of length of 4000 chars and it will return in a table. And from other end you can loop and concatenate. Hope this helps....
create or replace FUNCTION FN_GEN_XML RETURN dashb_xml pipelined IS v_xml CLOB := NULL;
v_temp VARCHAR2(4000) := NULL;
v_counter NUMBER := 1;
BEGIN
  SELECT somefunction(0)
  INTO v_xml
  FROM dual;--v_xml here is clob type. here you might need to call your proc and get it into this variable.
  dbms_output.put_line ('length of v_xml is:' || length(v_xml));
  DBMS_OUTPUT.PUT_LINE('start of this function');
  LOOP
    v_temp := SUBSTR(v_xml,   v_counter,   4000);
    EXIT
  WHEN v_temp IS NULL;
  DBMS_OUTPUT.PUT_LINE(to_char(v_temp));
  pipe ROW(v_temp);
  v_counter := v_counter + 4000;
END LOOP;
RETURN;
END;
Regards,
Ravi Kumar