Oracle database upgrade from 11.1 to 11.2 on Windows 2008 R2 64bit
My Oracle database upgrade from 11.1 to 11.2 was failed on Switching database Files, on about 61% of upgrade process.
ORA-27056: could not delete file
During clear database files in 11.1 database, I found Oracle temp datafile could not be removed. I had to reboot the server.
Please advise me how to avoid it on next upgrade?
my selections on upgrading
Uncheck --- Recompile invalid objects at the end of upgrade
Check --- Turn off archiving for the duration of upgrade
Check --- Upgrade time zone version and timestamp with time zone data
Uncheck --- Backup database
Yes --- For DBUA to start a listener