on 05-29-2015 4:32 PM
Hi,
This is our DR PRD System.
ORA-01157 cannot identify lock/file means issue relates with the datafile here (Incomplete or corrupted ).
A similar issue is answered at SCN thread ORA-01157: cannot identify/lock data file 201 -... | SCN
but CAUTION : In your case it's related with datafile & dropping of this datafile could make the situations worse for you.
Suggest you to restore the complete database from the successful backup or try to recover the specified file.
Regards,
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