Custom report based on function returning cursor

Question

Hi,
I'm trying to create a generic function that will be the basis of a custom report in Grid Control.
The idea is to pass in a database link name, then the function builds a cursor to select using that name, and returns the result to Grid control to render.
At the moment all I get is an empty table.
My function is defined as follows:
create or replace function list_databases(p_dblink varchar2) return sys_refcursor
is
db_name varchar2(40);
c_cursor sys_refcursor;
v_query varchar2(100);
begin
v_query := 'select name from rc_database@'||p_dblink;
open c_cursor for v_query;
return c_cursor;
end;
The custom report contains a 'Table from SQL' type, with the following sql statement:
select sysman.list_databases('rmancat_test') from dual
I've tried playing around with the ??EMIP_BIND_RESULTS_CURSOR?? bind variable but it only seems to work if I write the pl/sql block in the custom report, rather than going for a generic function.
Any ideas are most welcome.
Chris

Answer 1

Why not use a simple procedure to achieve the same thing?