Pipelined function issue

Question

I have a function which populates a collection, pipe the elements in the collection and throws the piped table object. Its working fine.
But when I pass the collection to this function instead of populating them in the function. Its throwing a error message stating that unable to access rows from nested table.
How to overcome this.
Thanks in advance

Answer 1

That's strange. When I tried your code on my system I didn't get the error. Here's what I did. Note that some object definitions were not provided so I had to replace some of your code with my own. Also, there was a typo in the definition of tabFun you provided, two "END;" lines were listed where only one was needed.
SQL> CREATE OR REPLACE TYPE myObj AS OBJECT
  2  ( F1 INT,
  3    F2 DATE,
  4    F3 VARCHAR2(25)
  5  );
  6  /
Type created.
SQL> show errors
No errors.
SQL>
SQL>
SQL> CREATE OR REPLACE TYPE myTab AS TABLE OF myObj;
  2  /
Type created.
SQL> show errors
No errors.
SQL>
SQL>
SQL> CREATE OR REPLACE FUNCTION tabFun(tab1 IN myTab)
  2    RETURN myTab PIPELINED
  3  IS
  4  BEGIN
  5    FOR i in 1 .. tab1.count
  6    LOOP
  7      PIPE ROW (myObj(tab1(i).F1,tab1(i).F2,tab1(i).F3));
  8    END LOOP;
  9    RETURN;
10  END;
11  /
Function created.
SQL> show errors
No errors.
SQL>
SQL>
SQL>
SQL> CREATE OR REPLACE PROCEDURE myProc
  2  --(ref_cur out weakcur.cur_defn)
  3    ( ref_cur out sys_refcursor )
  4  AS
  5    tab myTab;
  6  BEGIN
  7
  8  select myobj( 1, sysdate, 'test' )
  9  bulk collect into tab
10  from dual
11  ;
12
13  /*
14  SELECT myObj(case_id, creation_date, bo_id_cust)
15  bulk collect into tab
16  from ps_rc_case
17  where rownum < 10;
18  */
19
20  dbms_output.put_line(tab.count); --- While debugging its shows the value as 10
21
22  open ref_cur for select * from table(tabFun(tab));
23  --- Here I am getting the error "Unable to read rows from non nested table"
24
25  END;
26  /
Procedure created.
SQL> show errors
No errors.
SQL>
SQL> set serveroutput on
SQL>
SQL> variable v_ref_cursor refcursor
SQL>
SQL> execute myproc( :v_ref_cursor );
1
PL/SQL procedure successfully completed.
SQL>
SQL> print v_ref_cursor
        F1 F2        F3
         1 29-APR-06 testTry running the test case from a clean user. Perhaps some objects aren't really defined the way you expect them to be in the user you're currently testing under.