is it possible to use a function to

8.1.7.4 Solaris 9
What I want to do is build a In list and feed it to a query:

select * from test2 where
symbol in ( select test_function('IBM') symbol from dual);

One symbol comming out of the function works fine. multiples do not the select test_function('IBM') from dual works just fine.

I cannot get the outer query to work.

What am I missing?

Thanks,

Kathy

CREATE OR REPLACE FUNCTION test_function ( p_symbol in test.symbol%type

         ) RETURN varchar2
is

  v_cur_symbol   alias.symbol%type;
  v_in_list_sql  varchar2 (4000);
  v_symbol       alias.symbol%type := upper(p_symbol);
  
  cursor symbol_cur is 
	select distinct a1.symbol   
	from   test 
	where symbol = v_symbol
	                     )
             
BEGIN
      

   For symbol_recs in symbol_cur
   LOOP            v_cur_symbol := symbol_recs.symbol || ',';    

   v_in_list_sql := rtrim(v_in_list_sql,' ') || v_cur_symbol;          

   END LOOP;    /* take off last comma */
   v_in_list_sql := substr(rtrim(v_in_list_sql,' ') ,1,(length(rtrim(v_in_list_sql,' ')))-1 ) ;    return v_in_list_sql;    

  EXCEPTION
   WHEN No_Data_Found
   THEN

      return v_in_list_sql;
      

   WHEN OTHERS
   THEN

      raise_application_error(sqlcode, SUBSTR(SQLERRM,1,100)); 
              

   end;

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