Each client has its own tnsname.ora on the local PC. Let say I want to connect to a new location instead from the tnsname. How can I connect?
I used 'sqlplus firstname.lastname@example.org:1521rcl' where orcl is the service name. I got an error ORA-06401: NETCMN: invalid driver designator. Pls help on how to connect without a tnsname entry. Tks.