We have an Oracle 11G R2 on Windows 2008 R2.
One night, a windows update package caused our Oracle Instance to be down (no way to connect using sqlplus. we believe it's a network, NIC issue.).
We have restored the system from an 36 hours old system snapshot. We do not use archive mode. So every single parameter file in oracle stays same, but datafiles are old.
Question is, can we shut the db off and copy the newer datafiles to the restored system? Is this operation safe?
Thanks in advance.