This might be a silly question...
But on one particular database I recently created, 10.2.0.3, I get this error when I try this:
$ sqlplus '/ as sysdba'
I dont understand because the O/S user I'm using the Oracle user that installed the Oracle home for the database. And I logging on from the server itself, not from a client.
I haven't dealt with this error in such a long time, I can't even remember what to check for why this happening.
Thanks.