Recover from dropped SYSAUX datafile

Question

Trying to recover a DEV database without rebuilding it, but not hopeful at this point. Basically, someone dropped the SYSAUX (and a few other) datafiles, so now they are showing up in the database as MISSING0003 instead of the actual filename. There are no backups, but I want to drop the tablespaces (not SYSAUX) and in trying to do so, I'm getting an error about the SYSAUX tablespace for some reason. How can I rebuild or recover from the SYSAUX issue, since I cannot drop the SYSAUX tablespace, as it seems to be preventing me from dropping any of the other tablespaces that have missing datafiles as well. I really just need to recreate the tablespaces, but get the below error when I try to drop the schemas (with cascade) or the tablespaces (including contents).
SQL> drop tablespace DATA001 including contents;
drop tablespace DATA001 including contents
ERROR at line 1:
ORA-00604: error occurred at recursive SQL level 2
ORA-00376: file 3 cannot be read at this time
ORA-01111: name for data file 3 is unknown - rename to correct file
ORA-01110: data file 3: 'C:\ORACLE\PRODUCT\10.2.0\DB_1\DATABASE\MISSING00003'
ORA-06512: at line 19
Any help to get past the first issue of dropping the non-SYSTEM tablespaces would be great, and any follow-up on how to rebuild/recreate/recover from the dropped SYSAUX datafiles would be appreciated as well.
DB is 10gR2 on Windows.

Answer 1

user4257171 wrote:
Trying to recover a DEV database without rebuilding it, but not hopeful at this point. Basically, someone dropped the SYSAUX (and a few other) datafiles, so now they are showing up in the database as MISSING0003 instead of the actual filename. There are no backups,
> DB is 10gR2 on Windows.
Without backups you are not going to be able recover the dropped data files. Given that one of the tablespaces was the required SYSAUX tablespace you are most likely looking at a rebuild instead of a restore.