TABLE FUNCTION - Using database view - send parameters to the function.

Question

Hi everybody:
1.- I have a function returning a TABLE OF, and that function recieve 2 parameters of type NUMBER.
2.- I'm able to call this function as a table function like this:
SELECT * FROM TABLE(my_function(3,4))
3.- I want to create a database View, To use this query in diferent places of my app.
CREATE OR REPLACE VIEW NAME_OF_MY_VIEW AS SELECT * FROM TABLE(my_function(:_idOne,:idTwo))
4.- My problem is, that I want to send the parameters dinamically to the function, and use those parameters to populate the rows, using a database view, the previous code does not compile... and I don't know another way to do this.
Please help.
thnks in advance.
Alex.

Answer 1

Yes you can:
SQL> CREATE PACKAGE pkg
AS
   a_global   VARCHAR2 (30);
   FUNCTION f (a VARCHAR2)
      RETURN varchar_tab;
   FUNCTION ret_global
      RETURN VARCHAR2;
   FUNCTION set_ret_global (ret_global VARCHAR2)
      RETURN INTEGER;
END;
Package created.
SQL> CREATE OR REPLACE PACKAGE BODY pkg
AS
   FUNCTION f (a VARCHAR2)
      RETURN varchar_tab
   AS
      l_varchar_tab   varchar_tab := varchar_tab ();
   BEGIN
      FOR i IN 1 .. 10
      LOOP
         l_varchar_tab.EXTEND;
         l_varchar_tab (i) := a;
      END LOOP;
      RETURN l_varchar_tab;
   END f;
   FUNCTION ret_global
      RETURN VARCHAR2
   AS
   BEGIN
      RETURN a_global;
   END ret_global;
   FUNCTION set_ret_global (ret_global VARCHAR2)
      RETURN INTEGER
   AS
   BEGIN
      a_global := ret_global;
      RETURN 1;
   END set_ret_global;
END pkg;
Package body created.
SQL> CREATE OR REPLACE VIEW v
AS
   SELECT *
     FROM TABLE (pkg.f (pkg.ret_global))
View created.
SQL> SELECT *
  FROM v
WHERE 1 = pkg.set_ret_global (5)
COLUMN_VALUE                                                                   
5                                                                              
5                                                                              
5                                                                              
5                                                                              
5                                                                              
5                                                                              
5                                                                              
5                                                                              
5                                                                              
5                                                                              
10 rows selected.
SQL> SELECT *
  FROM v
WHERE 1 = pkg.set_ret_global (4)
COLUMN_VALUE                                                                   
4                                                                              
4                                                                              
4                                                                              
4                                                                              
4                                                                              
4                                                                              
4                                                                              
4                                                                              
4                                                                              
4                                                                              
10 rows selected.