> Once you have exclusive access, nobody else can log in until you terminate
> the shutdown.
>
> A warning, though: if you have other users who are already logged in as
> SYSDBA or the database owner at the time you set the shutdown, their work
> will be allowed to continue. The best bet if this is your case would be

to

> send everyone to the park for the afternoon and change the locks on the

doors.

We attempt to rename the gdb file, if it fails, someone is using it, if not,
then apps won't connect anymore until we've finished, then we rename it
back.

JAC.