Select from local (tmp) Table in Function - Table not found

Question

Hi,
I want to create a cursor which selects from a Table which does not exist in database.
I create this table as local table (how is it called? nested table?).
Not shown in the code but I want to fill this local table later.
After filled my cursor is going to use this filled table.
When try to run I get the error Table or View does not exist at the "FROM TempTab_var T1;" of my cursor.
This is my simplified code:
CREATE OR REPLACE FUNCTION PC_RL_MTA_PMT
RETURN PC_RL_MTA_TYPE_PMT
IS
result_out PC_RL_MTA_TYPE_PMT;
  TYPE TempTab_record_type IS RECORD
    (ID int);
  TYPE TempTab_type IS TABLE OF TempTab_record_type
          INDEX BY BINARY_INTEGER;
  TempTab_var TempTab_type;
  CURSOR TempCursor3_var IS
    SELECT    ID AS ID_var
    FROM    TempTab_var T1;
BEGIN
RETURN result_out;
END PC_RL_MTA_PMT;
Any Ideas whats wrong?
Thanks very much in advance.

Answer 1

And a further example from my library of examples, just to help you out...
SQL> CREATE OR REPLACE TYPE num_descript AS OBJECT(num number, descript varchar2(30))
  2  /
Type created.
SQL> CREATE OR REPLACE TYPE tbl_num_descript AS TABLE OF num_descript
  2  /
Type created.
SQL> CREATE OR REPLACE PACKAGE reftest AS
  2    FUNCTION pipedata(p_choice number) RETURN tbl_num_descript PIPELINED;
  3  END;
  4  /
Package created.
SQL> CREATE OR REPLACE PACKAGE BODY reftest AS
  2    FUNCTION pipedata(p_choice number) RETURN tbl_num_descript PIPELINED IS
  3      v_obj num_descript := num_descript(NULL,NULL);
  4      v_rc  sys_refcursor;
  5    BEGIN
  6      IF p_choice = 1 THEN
  7        OPEN v_rc FOR SELECT empno as num, ename as descript FROM emp;
  8      ELSIF p_choice = 2 THEN
  9        OPEN v_rc FOR SELECT deptno as num, dname as descript FROM dept;
10      END IF;
11      LOOP
12        FETCH v_rc INTO v_obj.num, v_obj.descript;
13        EXIT WHEN v_rc%NOTFOUND;
14        PIPE ROW(v_obj);
15      END LOOP;
16      CLOSE v_rc;
17      RETURN;
18    END;
19  END;
20  /
Package body created.
SQL> select * from table(reftest.pipedata(1));
       NUM DESCRIPT
      7369 SMITH
      7499 ALLEN
      7521 WARD
      7566 JONES
      7654 MARTIN
      7698 BLAKE
      7782 CLARK
      7788 SCOTT
      7839 KING
      7844 TURNER
      7876 ADAMS
      7900 JAMES
      7902 FORD
      7934 MILLER
14 rows selected.
SQL> select * from table(reftest.pipedata(2));
       NUM DESCRIPT
        10 ACCOUNTING
        20 RESEARCH
        30 SALES
        40 OPERATIONS