http://www.perlmonks.org?node_id=579566


in reply to Re: Getting return value of DB2 stored procedures
in thread Getting return value of DB2 stored procedures

No, the code in that article doesn't bind the return value. So far all of the examples I've seen work that way, so I have to assume the driver just doesn't support it. But it's interesting that binding the return value doesn't cause an error, it just silently fails to populate the bound variable.