Database open fails after online backup recovery

Question

Hi Friends
We are trying to set up an additional server using the online backup of our DEV server. We have been following SAP Note 549828 for the same. Having restored the online backup, the open database failed.
To resolve the same, in accordance to SAP Note 549828, we created a backup control file with success using the command
create controlfile reuse set database DEV resetlogs noarchivelog
However on issuance of the command
RECOVER DATABASE USING BACKUP CONTROLFILE UNTIL CANCEL
we run into an error as to
ORA-00279: change 794638222 generated at 10/25/2007 12:43:20 needed for thread 1
ORA-00289: suggestion : /oracle/DEV/oraarch/DEVarch1_9766.dbf
ORA-00280: change 794638222 for thread 1 is in sequence #9766
Specify log: {<RET>=suggested | filename | AUTO | CANCEL}
ORA-00308: cannot open archived log '/oracle/DEV/oraarch/DEVarch1_9766.dbf'
ORA-27037: unable to obtain file status
SVR4 Error: 2: No such file or directory
Additional information: 3
ORA-01547: warning: RECOVER succeeded but OPEN RESETLOGS would get error below
ORA-01194: file 1 needs more recovery to be consistent
ORA-01110: data file 1: '/oracle/DEV/sapdata1/system_1/system.data1'
We even manually copied the file system.data1 from the source to the target server but to no avail.
Also the SQL command
SELECT FILE#, CHANGE# FROM V$RECOVER_FILE
displays a different change# for system.data1 while it is showing same number for all other datafiles.
Please advice at the earliest as we are struck. Points awaiting their master.
Regards
Lokesh Gupta

Answer 1

Some inputs addition to Erics comments
The problem is you dont have archives ie Offline redo logfiles in correct location.
/oracle/DEV/oraarch/DEVarch1_9766.dbf  Here DEVarch1_9766 is archive file which is misssing from location /oracle/DEV/oraarch. To recover DB you need Archives generated during hot backup.
Generally these steps willl give you desired result.
select * from v$logfile;
We normally switch the log files to the number of log groups that exist
alter system switch logfile;
create a Backup directory to hold our hot back datafiles and Archives
When the backup is complete check the backup location to see if all the files are available. We could now either FTP the same to the other system or copy over these files to another location in case of cloning on the same system.
Copy over all the files to their respective filesystems and directories and then edit the file that was created using the backup controlfile to trace. Copy that file to the remote system and edit it accordingly.
check that all the files are in the right location and edit that information in the control file
Once the controlfile is run successfully and you get the statement processed, we can start applying the archive logs that we have moved to the archive log destination directory as per the init<sid>.ora file.
do a recover of the database to its consistent state
recover database using backup controlfile until cancel;
The create control file command only changes the structure of the database and the SID name, the header of the datafiles still hold all the required information. The above command would ask you to input the archive log file names one by one to do recovery or you could choose the AUTO option. Once the recovery process is complete, open the database with the resetlogs option
Regards
Vinod