Any chance the backup in question is not a backup set but is an image copy?
Mark Powell
Database Administration
(313) 592-5148
________________________________
From: oracle-l-bounce@xxxxxxxxxxxxx <oracle-l-bounce@xxxxxxxxxxxxx> on behalf
of Deepak Sharma <dmarc-noreply@xxxxxxxxxxxxx>
Sent: Wednesday, June 28, 2017 11:10:35 PM
To: Oracle-L Freelists
Subject: v$backup_datafile
I have a scenario where entry exists in v$backup_datafile, but cannot find any
corresponding reference in v$backup_piece or v$backup_set_details.
The strange part is that I was able to join v$backup_datafile and
v$backup_piece just an hour ago and was getting result (even have it documented
with screenshot & all). Now entry exists in v$backup_datafile but none so ever
elsewhere (join columns are set_stamp and set_count).
