That is the database checkpoint SCN, not the current SCN.
There is another statement to get the most recent SCN no.
select discn from x$kccdi;
You can get the SCN of the most recently committed (local) transaction with the following query:
select max(ktuxescnw * power(2, 32) + ktuxescnb) from x$ktuxe;
This may not be quite the same as the current SCN, because the latter may have
advanced a little for various reasons, but for single instance Oracle for the
purposes of recovery testing it is equivalent.
How to find out the current SCN value.
The probelm is: I want to try my backup and restore strategy for an incomplete recovery using the CHANGE clause.
recover database until change <scn>.