Cannot open the database, stuck in mount mode

Question

Someone please shed some lights on this problem.
I ran into some media failure, and ended up restoring the database from the offline whole backup.
The database is in the nonarchivelog mode (I know, it is not good), so there is no archive log files and
restore database is the only solution.
. startup mount
. restore database <== ran ok
. ALTER DATABASE CLEAR LOGFILE GROUP 1 <== ran ok
. ALTER DATABASE CLEAR LOGFILE GROUP 2 <== alter failed
ORA-01624: log 2 needed for crash recovery of instance orcl (thread 1)
Alter failed with group 2 and 3 because one was CURRENT,
and one was ACTIVE.
SQL> select group#, sequence#, members, status from v$log;
GROUP# SEQUENCE# MEMBERS STATUS
1 0 2 UNUSED
3 189 2 CURRENT
2 188 2 ACTIVE
I also tried 'alter database open resetlogs', and got:
ORA-01139: RESETLOGS option only valid after an incomplete database recovery
I don't think I can recover the datafile since there is no archive log file here.
Besides, if the restore database ran fine, why did I get SYSTEM01.DBF datafile needs media recovery message?
Right now, the database is in mount mode, and I cannot open it. How do I solve the problem with
ALTER DATABASE CLEAR LOGFILE GROUP for group 2 and 3?
Any suggestion? Thank you for the input.
The database is 11G running on Window.

Answer 1

I would think the cold backup ran successfully. Here is the backup record:
RMAN> run {
2> shutdown immediate;
3> startup mount;
4> allocate channel c1 type disk;
5> backup as backupset database;
6> alter database open;
7> }
8>
using target database control file instead of recovery catalog
database closed
database dismounted
Oracle instance shut down
connected to target database (not started)
Oracle instance started
database mounted
Total System Global Area 535662592 bytes
Fixed Size 1348508 bytes
Variable Size 331353188 bytes
Database Buffers 197132288 bytes
Redo Buffers 5828608 bytes
allocated channel: c1
channel c1: SID=156 device type=DISK
Starting backup at 29-NOV-09
channel c1: starting full datafile backup set
channel c1: specifying datafile(s) in backup set
input datafile file number=00002 name=C:\APP\DAVECW\ORADATA\ORCL\SYSAUX01.DBF
input datafile file number=00001 name=C:\APP\DAVECW\ORADATA\ORCL\SYSTEM01.DBF
input datafile file number=00003 name=C:\APP\DAVECW\ORADATA\ORCL\UNDOTBS01.DBF
input datafile file number=00005 name=C:\APP\DAVECW\ORADATA\ORCL\EXAMPLE01.DBF
input datafile file number=00006 name=C:\APP\DAVECW\ORADATA\ORCL\INVENTORY01.DBF
input datafile file number=00004 name=C:\APP\DAVECW\ORADATA\ORCL\USERS01.DBF
channel c1: starting piece 1 at 29-NOV-09
channel c1: finished piece 1 at 29-NOV-09
piece handle=C:\APP\DAVECW\FLASH_RECOVERY_AREA\ORCL\BACKUPSET\2009_11_29\O1_MF_NNNDF_TAG20091129T230
632_5K6VQY0W_.BKP tag=TAG20091129T230632 comment=NONE
channel c1: backup set complete, elapsed time: 00:01:55
channel c1: starting full datafile backup set
channel c1: specifying datafile(s) in backup set
including current control file in backup set
including current SPFILE in backup set
channel c1: starting piece 1 at 29-NOV-09
channel c1: finished piece 1 at 29-NOV-09
piece handle=C:\APP\DAVECW\FLASH_RECOVERY_AREA\ORCL\BACKUPSET\2009_11_29\O1_MF_NCSNF_TAG20091129T230
632_5K6VVNJR_.BKP tag=TAG20091129T230632 comment=NONE
channel c1: backup set complete, elapsed time: 00:00:03
Finished backup at 29-NOV-09
database opened
released channel: c1
Recovery Manager complete.