Recover without backup

After minimal image restore, I didn't back up my data. Now I wanna get my photos back, there has to be another way, otherwise I lose my memories :/

Hi imjscn,
I don't know what you are trying to establish here nonetheless RnR from Windows does not put thinkpad to factory settings. Only preboot RnR has this ability. If you did not delete the recovery partition wile formatting, you can subsequently recover it through following method:- http://www-307.ibm.com/pc/support/site.wss/document.do?lndocid=MIGR-54483
Hope it helps.
Maliha (I don't work for lenovo)
ThinkPads:- T400[Win 7], T60[Win 7], IBM 240[Win XP]
IdeaPad: U350
Apple:- Macbook Air [Snow Leopard]
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Similar Messages

How to recover without backup?

My ThinkPad T43 got virus, I formated it and installed Windows XP Professional. Then try to recover it to manufactury status, but can't install the Rescue and Recovery file. It says " can not find the required file for installing Rescue and Recovery, can't continue. Make sure the correct .tvt file is in the same folder where the installing package is located."
Please help! by the way, I don't have a backup file.

Hi imjscn,
I don't know what you are trying to establish here nonetheless RnR from Windows does not put thinkpad to factory settings. Only preboot RnR has this ability. If you did not delete the recovery partition wile formatting, you can subsequently recover it through following method:- http://www-307.ibm.com/pc/support/site.wss/document.do?lndocid=MIGR-54483
Hope it helps.
Maliha (I don't work for lenovo)
ThinkPads:- T400[Win 7], T60[Win 7], IBM 240[Win XP]
IdeaPad: U350
Apple:- Macbook Air [Snow Leopard]
Did someone help you today? Compliment them with a Kudos!
Was your question answered today? Mark it as an Accepted Solution!
Lenovo Deutsche Community Lenovo Comunidad en Español
Visit my YouTube Channel

Undo tablespace to recover without backup

hi,
I offlined one of my datafile containing in undo tablespace. Now my database is in mount stage when I tried to open the database it gives me the following error:
SQL> alter database open;
alter database open
ERROR at line 1:
ORA-00376: file 17 cannot be read at this time
ORA-01110: data file 17: '/misc/live_tbs/undotbstest.dbf'
My database is in noarchive mode plus I dont have a backup.
Thank you for your cooperation.
Regards,
Adnan Hamdus Salam.

adnan wrote:
hi,
I offlined one of my datafile containing in undo tablespace. Now my database is in mount stage when I tried to open the database it gives me the following error:
SQL> alter database open;
alter database open
ERROR at line 1:
ORA-00376: file 17 cannot be read at this time
ORA-01110: data file 17: '/misc/live_tbs/undotbstest.dbf'
My database is in noarchive mode plus I dont have a backup.
Thank you for your cooperation.
Regards,
Adnan Hamdus Salam.If your database`s last shutdown was clean(SHUTDOWN IMMEDIATE) then you can open database as
1) Backup current database(take cold backup)
2) if you use pfile then edit it and UNDO_MANAGEMENT=MANUAL also if you use spfile then ALTER SYSTEM SET UNDO_MANAGEMENT=MANUAL SCOPE=SPFILE then
3)SHUTDOWN IMMEDIATE and STARTUP MOUNT
4) Now ALTER DATABASE DATAFILE '/misc/live_tbs/undotbstest.dbf' OFFLINE DROP
5) ALTER DATABASE OPEN
After that you can create new undo tablespace and set UNDO_MANAGEMENT=AUTO

Urgent help : Need to recover a database without backup and archivelogs

Hi,
We are in urgent need to recover a database without backup and archivelogs
one datafile seems corrupted
SQL> recover automatic database until cancel using BACKUP CONTROLFILE;
ORA-00279: change 10527325422479 generated at 07/27/2011 03:13:04 needed for
thread 1
ORA-00289: suggestion : /pys/u5/oradata/PYS/PYSarch/arch0001.0000181845.arc
ORA-00280: change 10527325422479 for thread 1 is in sequence #181845
ORA-00278: log file '/pys/u5/oradata/PYS/PYSarch/arch0001.0000181845.arc' no
longer needed for this recovery
ORA-00308: cannot open archived log
'/pys/u5/oradata/PYS/PYSarch/arch0001.0000181845.arc'
ORA-27037: unable to obtain file status
HP-UX Error: 2: No such file or directory
Additional information: 3
Specify log: {<RET>=suggested | filename | AUTO | CANCEL}
CANCEL
ORA-01547: warning: RECOVER succeeded but OPEN RESETLOGS would get error below
ORA-01152: file 1 was not restored from a sufficiently old backup
ORA-01110: data file 1: '/pys/u2/oradata/PYS/pay_system_01.dbf'

N Gasparotto wrote:
bsac14 wrote:
my database is in no archive mode
can you please tell how to restore
yes it is a datafile corruptionYou did not say how you defined that's a datafile corruption. You provide minimum to zero information.
I just need to bring the database up,no need any exact data
I can refresh from prod laterThen drop and recreate database. Basically and since you are not in archive mode, no recover is possible. Period.
Nicolas.Hi,
How did you come to the conclusion that your datafile is corrupted? Can you provide and supported logs?
Regards .....

Recover Database without backup

Hi Joel,
I have read most of your postings regarding database recovery, but still encounter problems.
The background is: Our NT server was crashed last weekend, due to harddisk failure. We are able to retrieve back all the datafile, control file, everything in tact. But after recovery, the OS fails to recognize the ORacle and require reinstallation. We don't know how to re-associate this new instance of Oracle with the old databases that we have created.
I did create a new DB in the new instance, copy back the datafiles, control files to replace it, and run the recreate control file command that you have suggested. At the very final step, when doing recovery, it shows this message:
SQL> alter database open;
alter database open
ERROR at line 1:
ORA-01113: file 1 needs media recovery
ORA-01110: data file 1: 'D:\ORACLE\ORADATA\ELOS\SYSTEM01.DBF'
---tried to do a recovery as suggested:
SQL> recover automatic database;
ORA-00279: change 3329263 generated at 04/19/2004 12:00:26 needed for thread 1
ORA-00289: suggestion : D:\ORACLE\ORA90\RDBMS\ARC00061.001
ORA-00280: change 3329263 for thread 1 is in sequence #61
ORA-00278: log file 'D:\ORACLE\ORA90\RDBMS\ARC00061.001' no longer needed for
this recovery
ORA-00308: cannot open archived log 'D:\ORACLE\ORA90\RDBMS\ARC00061.001'
ORA-27041: unable to open file
OSD-04002: unable to open file
O/S-Error: (OS 2) The system cannot find the file specified.
---Tried a search on the machine, but failed to find such file.
How can I proceed from here?
Thanks and regards,
Suhandy

if the datafile does not contains tables that are needed for some application , or not belong to system,sysaux tablespace , offline datafile can be some solution.
To recover a datafile without backup you need alll the archives from the date that the datafile is created.
Please make a procedure for backup
A sample backup script can be founded http://mikegeorgiou.blogspot.com/2007/04/user-manage-backup-9i.html

Recover database after lossing system tablespace without backup

Hi
My database fail because of hardware failure and then system tablespace corrupted. other tablespaces and control files are OK. Can I recover my database without backup of system tablespace?

hi,
if you have not taken the physical backup (inconsistent or consistent) then you can not recocver it. you need to have some backup up strategy with RMAN or Manual. Do you have hardware (Disk) Mirroring to cover the media failure??
Atleast if you have the logical backups?? then create the database and import it..
Thanks
--Raman.

With just ONE inatentive sweep of my finger one page of my note was disappeared! Is there any way it can be recovered without using the help of iCloud backup?

1. With just ONE inattentive sweep of my finger one page of my note disappered. Further more, the same page in my iPad was deleted automatically too! How could this happen? Is there any way it can be recovered without using the backup feature from iCloud? The data is vey important to me?
2. I havn't connect the power code to my iPad yet, the backup copy in the iClout was before the accident as I checked in iPad. Is there any way that I could open my notes in iCloud backup so that I can copy the missing page and move back to my iPad and iPhone?
Thanks a lot for any help!
Xueyu

Sorry, no. The only way to restore this note is to restore from a backup that contains it.

HT4972 how to recover lost data in i phone 4 without backup and how to activate i phone 4 without sim after update to ios 5.1.1

how to recover lost data in i phone 4 without backup and how to activate i phone 4 without sim after update to ios 5.1.1

Not possible in both cases.

Update from 3.1.3 to 4.x CORRUPTED WITHOUT BACKUP! How to recover data

My screen stays in recovery mode. Cannot switch to normal boot mode.
I cannot restore from iTune, since I need the photo data in my phone.
Anybody know how do I recover the data?
Thanks!

vycon wrote:
...I did use iTune to update. But I chose upgrade without backup.
I am not sure what will happen if I click restore now.
Most likely, you will lose everything. Data, photos, installed apps (they still are in iTunes, btw), etc.
Unless you had flagged to sync your photos on iTunes: you can found them (at least, the last synced ones) in the folder you told to store photo data.
If you using a Mac, check your iPhoto app, or Pictures folder. If windows, check your Images folder, to see if they were in. Good luck!

Recover db without backup sets rman

Hi,
Is there any way to restore the database without backup sets. We have the recent incremental backup, however the backupsets have failed.
Please advise.

user12075620 wrote:
RMAN backupsets are defined to have a retention period and moving the backup from disk to tape and then freeing the space on the disk.
where did you get this definition?
RMAN can store backup data in a logical structure called a backup set, which is the smallest unit of an RMAN backup. A backup set contains the data from one or more datafiles, archived redo logs, or control files or server parameter file. Backup sets, which are only created and accessed through RMAN, are the only form in which RMAN can write backups to media managers such as tape drives and tape libraries.
A backup set contains one or more binary files in an RMAN-specific format. This file is known as a backup piece. A backup set can contain multiple datafiles. For example, you can back up ten datafiles into a single backup set consisting of a single backup piece. In this case, RMAN creates one backup piece as output. The backup set contains only this backup piece.
http://docs.oracle.com/cd/B28359_01/backup.111/b28270/rcmcncpt.htm#i1008641
You will need to define your problem in detail if you know what the problem is. what are you trying to achieve?

Help, How can I recover my lost photos from my iPhone 4 without backup?

I have a lot of photos stored in my iPhone 4, but yesterday, I pressed the wrong button and my entire photos was deleted, very sadly. There are many import photos that stored for 1 year. I hope to recover them backup, I tried many data recovery tool, but it won’t recognize my iPhone 4, why and how can I recover my sms? If there any other tool can help? Thanks.

Even if you haven’t backed up your iPhone with iTunes manually, iTunes might have backed up it automatically each time you sync your iPhone with iTunes. If you have enabled iCloud, every time, your iPhone is connected to Wifi and a power source, and the screen is locked, iCloud will automatically backup your photos. So try to restore the deleted photos from iTunes or iCloud backup first if the backups were created before the deletion.
http://support.apple.com/kb/HT1766
If you don’t want to restore your iPhone with an out-of-date backup, erase all the content and settings on your iPad, and go back to an older iOS version, try to extract your iPhone photos from your iTunes or iCloud backup with the iPhone backup extractor.
Other than restoring from iTunes or iCloud backup, there are still at least 3 other solutions for you to recover deleted photos from iPhone:
Extracting from previous iTunes backup;
Retrieving directly from iPhone;
Copying from other backups.
As for recovering SMS, see this iPhone SMS recovery tutorial.

How do I get my data from Sync account after I reformat my computers without backup favourites?

Hello,
I formatted my computer without backup all of my favourites in Firefox. I have Firefox sync account set up before that between the 2 computers but both of them have formatted. Now, how do I get the data out from my Sync account? Did Firefox save my data on their server and how can I check that?
Thanks,

Also:
*If you have regenerated your Sync key or reset your Sync password, you can not recover your previous data
*IMPORTANT - write down your Sync key as instructed in the original set up of Sync
*if you have another device (computer or mobile) paired to the computer where you are having a problem, you can either:
*#pair the problem computer to that other device
*#get the Sync key from that other device
'''<u>Remember</u>''', Sync was never intended for backup. The reason for its existence is to sync-up 2 devices. To back up your Firefox profile, which you should do frequently, to another drive or a pin/thumb drive or other backup media, see:
*https://support.mozilla.org/en-US/kb/back-and-restore-information-firefox-profiles
*http://kb.mozillazine.org/Profile_backup
*https://support.mozilla.org/en-US/kb/Recovering%20important%20data%20from%20an%20old%20profile
*http://kb.mozillazine.org/Recovering_a_missing_profile

Is it possible to decrypt EFS files without backup certificate- windows xp,vista,win-7,win8

hi,
i have windows xp and and i did the format c:\ without take any EFS certificate backup ,is it possible to decrypt efs files without backup certificate , i have lot off files like Microsoft office and pdf , how can i recover the file and decrypt
Any software to decrypt the files , mostly word and excel files , any solution please let me know as soon ad possible.
Thx
PV

PV
If you formatted the entire "C" drive (Format C:\) then you don't need to decrypt them but rather recover them. Recovery is somewhat doubtful but one application you can try is called recuva.
You will not recover 100% of the files and may not recover any
http://www.piriform.com/recuva
Wanikiya and Dyami--Team Zigzag

Recovering cold backup - running in circles - part 2 -Second opinion needed

Hello all,
Here I'm again but this time not to ask for a complete solution where I have to do nothing but a second opinion and some help in solving.
In the thread [Recovering cold backup - alter database open failing - running in circles |http://forums.oracle.com/forums/thread.jspa?messageID=9663720] , I was trying to recover a database (I still am) for one of our clients.
Since then a few things have changed, from our client we have no received the installation media for their database software: Oracle 10.0.1.0.2.
I have installed this on a Linux, an opensuse while they used a RHEL 4, placed the database files in the a similar map structure as theirs and made sure that all the ORACLE variables were correctly set, we have also received the pfile and I made the corresponding initfile from.
I start sqlplus / as sysdba
Mounting the database no problem.
Trying to open the database I receive the following error ORA-01207: file is more recent than controlfile – old controlfile, the error refers to the Datafile 2: '/home/oracle/product/10.1.0/oradata/orcl/undotbs01.dbf'.
Their is no corresponding error message in the alert log, well their is but it doesn't really give me the information I was looking for.
Mon Jul 11 16:38:26 2011
alter database open
ORA-1122 signalled during: alter database open...
Mon Jul 11 16:44:51 2011
ALTER DATABASE RECOVER database
Mon Jul 11 16:44:51 2011
Media Recovery Start
Media Recovery failed with error 1122
ORA-283 signalled during: ALTER DATABASE RECOVER database ...
I then attempted to do a media recovery using recover database using backup controlfile, which fails because it can not find a corresponding backup controlfile.
The section generated in the alert log did however worry me more:
ALTER DATABASE RECOVER database using backup controlfile
Mon Jul 11 16:46:15 2011
Media Recovery Start
WARNING! Recovering data file 1 from a fuzzy file. If not the current file
it might be an online backup taken without entering the begin backup command.
WARNING! Recovering data file 2 from a fuzzy file. If not the current file
it might be an online backup taken without entering the begin backup command.
WARNING! Recovering data file 3 from a fuzzy file. If not the current file
it might be an online backup taken without entering the begin backup command.
WARNING! Recovering data file 4 from a fuzzy file. If not the current file
it might be an online backup taken without entering the begin backup command.
WARNING! Recovering data file 5 from a fuzzy file. If not the current file
it might be an online backup taken without entering the begin backup command.
Starting datafile 1 with incarnation depth 0 in thread 1 sequence 1818761
Datafile 1: '/home/oracle/product/10.1.0/oradata/orcl/system01.dbf'
Starting datafile 2 with incarnation depth 0 in thread 1 sequence 1818764
Datafile 2: '/home/oracle/product/10.1.0/oradata/orcl/undotbs01.dbf'
Starting datafile 3 with incarnation depth 0 in thread 1 sequence 1818761
Datafile 3: '/home/oracle/product/10.1.0/oradata/orcl/sysaux01.dbf'
Starting datafile 4 with incarnation depth 0 in thread 1 sequence 1818765
Datafile 4: '/home/oracle/product/10.1.0/oradata/orcl/users01.dbf'
Starting datafile 5 with incarnation depth 0 in thread 1 sequence 1818761
Datafile 5: '/home/oracle/product/10.1.0/oradata/orcl/temp02.dbf'
Media Recovery Log
So that could mean that they've just taken a copy off the files without offlining the database first, anyway to confirm this.
I've come to a point where I have not an immediately clue of what to do, some help even a little push could be helpful.

I did
SQL> recover database using backup controlfile until cancel;
Specify log: {<RET>=suggested | filename | AUTO | CANCEL}
/home/oracle/product/10.1.0/oradata/orcl/redo01.log
Tue Jul 12 12:36:03 2011
ALTER DATABASE RECOVER LOGFILE '/home/oracle/product/10.1.0/oradata/orcl/redo01.log'
Tue Jul 12 12:36:03 2011
Media Recovery Log /home/oracle/product/10.1.0/oradata/orcl/redo01.log
Tue Jul 12 12:36:03 2011
Incomplete recovery applied all redo ever generated.
Recovery completed through change 996740226
Tue Jul 12 12:36:03 2011
orcl; Media Recovery Complete
ARCH: Connecting to console port...
Completed: ALTER DATABASE RECOVER LOGFILE '/home/oracle/pr
Tue Jul 12 12:36:18 2011
ALTER DATABASE RECOVER database using backup controlfile until cancel
Tue Jul 12 12:36:18 2011
Media Recovery Start
Starting datafile 1 with incarnation depth 0 in thread 1 sequence 1
Datafile 1: '/home/oracle/product/10.1.0/oradata/orcl/system01.dbf'
Starting datafile 2 with incarnation depth 0 in thread 1 sequence 1
Datafile 2: '/home/oracle/product/10.1.0/oradata/orcl/undotbs01.dbf'
Starting datafile 3 with incarnation depth 0 in thread 1 sequence 1
Datafile 3: '/home/oracle/product/10.1.0/oradata/orcl/sysaux01.dbf'
Starting datafile 4 with incarnation depth 0 in thread 1 sequence 1
Datafile 4: '/home/oracle/product/10.1.0/oradata/orcl/users01.dbf'
Starting datafile 5 with incarnation depth 0 in thread 1 sequence 1
Datafile 5: '/home/oracle/product/10.1.0/oradata/orcl/temp02.dbf'
Media Recovery Log
It said media recovery complete in sqlplus
when I tried to open I got disconnection forced
Tue Jul 12 12:37:18 2011
alter database open resetlogs
RESETLOGS after complete recovery through change 996740226
Resetting resetlogs activation ID 1284019345 (0x4c889491)
Online log /home/oracle/product/10.1.0/oradata/orcl/redo02.log: Thread 1 Group 2 was previously cleared
Online log /home/oracle/product/10.1.0/oradata/orcl/redo03.log: Thread 1 Group 3 was previously cleared
Setting recovery target incarnation to 4
Tue Jul 12 12:37:18 2011
Setting recovery target incarnation to 4
Tue Jul 12 12:37:18 2011
Flashback Database Disabled
Tue Jul 12 12:37:18 2011
Assigning activation ID 1284062526 (0x4c893d3e)
Maximum redo generation record size = 120832 bytes
Maximum redo generation change vector size = 116476 bytes
Private_strands 7 at log switch
Thread 1 opened at log sequence 1
Current log# 1 seq# 1 mem# 0: /home/oracle/product/10.1.0/oradata/orcl/redo01.log
Successful open of redo thread 1
Tue Jul 12 12:37:18 2011
MTTR advisory is disabled because FAST_START_MTTR_TARGET is not set
Tue Jul 12 12:37:18 2011
SMON: enabling cache recovery
Tue Jul 12 12:37:18 2011
Successfully onlined Undo Tablespace 1.
Dictionary check beginning
Dictionary check complete
Tue Jul 12 12:37:18 2011
SMON: enabling tx recovery
Tue Jul 12 12:37:18 2011
WARNING: The following temporary tablespaces contain no files.
This condition can occur when a backup controlfile has
been restored. It may be necessary to add files to these
tablespaces. That can be done using the SQL statement:
ALTER TABLESPACE <tablespace_name> ADD TEMPFILE
Alternatively, if these temporary tablespaces are no longer
needed, then they can be dropped.
Empty temporary tablespace: TEMP
Database Characterset is UTF8
Tue Jul 12 12:37:18 2011
Published database character set on system events channel
Tue Jul 12 12:37:18 2011
All processes have switched to database character set
Tue Jul 12 12:37:18 2011
Errors in file /home/oracle/product/10.1.0/db_1/admin/orcl/udump/orcl_ora_19084.trc:
ORA-00600: internal error code, arguments: [4194], [21], [17], [], [], [], [], []
Tue Jul 12 12:37:19 2011
Errors in file /home/oracle/product/10.1.0/db_1/rdbms/log/orcl_smon_19072.trc:
ORA-00600: internal error code, arguments: [4194], [75], [7], [], [], [], [], []
Tue Jul 12 12:37:20 2011
Doing block recovery for file 2 block 25323
Block recovery range from rba 1.65.0 to scn 0.996740294
Recovery of Online Redo Log: Thread 1 Group 1 Seq 1 Reading mem 0
Mem# 0 errs 0: /home/oracle/product/10.1.0/oradata/orcl/redo01.log
Block recovery stopped at EOT rba 1.67.16
Block recovery completed at rba 1.67.16, scn 0.996740294
Doing block recovery for file 2 block 25
Block recovery range from rba 1.65.0 to scn 0.996740293
Recovery of Online Redo Log: Thread 1 Group 1 Seq 1 Reading mem 0
Mem# 0 errs 0: /home/oracle/product/10.1.0/oradata/orcl/redo01.log
Block recovery completed at rba 1.67.16, scn 0.996740294
Tue Jul 12 12:37:20 2011
Errors in file /home/oracle/product/10.1.0/db_1/rdbms/log/orcl_smon_19072.trc:
ORA-00604: error occurred at recursive SQL level 1
ORA-00607: Internal error occurred while making a change to a data block
ORA-00600: internal error code, arguments: [4194], [75], [7], [], [], [], [], []
Tue Jul 12 12:37:21 2011
Doing block recovery for file 2 block 1295
Block recovery range from rba 1.63.0 to scn 0.996740295
Recovery of Online Redo Log: Thread 1 Group 1 Seq 1 Reading mem 0
Mem# 0 errs 0: /home/oracle/product/10.1.0/oradata/orcl/redo01.log
Block recovery stopped at EOT rba 1.67.16
Block recovery completed at rba 1.67.16, scn 0.996740294
Doing block recovery for file 2 block 41
Block recovery range from rba 1.63.0 to scn 0.996740292
Recovery of Online Redo Log: Thread 1 Group 1 Seq 1 Reading mem 0
Mem# 0 errs 0: /home/oracle/product/10.1.0/oradata/orcl/redo01.log
Block recovery completed at rba 1.65.16, scn 0.996740293
Tue Jul 12 12:37:21 2011
Errors in file /home/oracle/product/10.1.0/db_1/admin/orcl/udump/orcl_ora_19084.trc:
ORA-00600: internal error code, arguments: [4193], [57818], [10145], [], [], [], [], []
Doing block recovery for file 2 block 622
Block recovery range from rba 1.67.0 to scn 0.996740298
Recovery of Online Redo Log: Thread 1 Group 1 Seq 1 Reading mem 0
Mem# 0 errs 0: /home/oracle/product/10.1.0/oradata/orcl/redo01.log
Block recovery stopped at EOT rba 1.69.16
Block recovery completed at rba 1.69.16, scn 0.996740298
Doing block recovery for file 2 block 9
Block recovery range from rba 1.67.0 to scn 0.996740297
Recovery of Online Redo Log: Thread 1 Group 1 Seq 1 Reading mem 0
Mem# 0 errs 0: /home/oracle/product/10.1.0/oradata/orcl/redo01.log
Block recovery completed at rba 1.69.16, scn 0.996740298
WARNING: Files may exists in db_recovery_file_dest
that are not known to the database. Use the RMAN command
CATALOG RECOVERY AREA to re-catalog any such files.
One of the following events caused this:
1. A backup controlfile was restored.
2. A standby controlfile was restored.
3. The controlfile was re-created.
4. db_recovery_file_dest had previously been enabled and
then disabled.
Tue Jul 12 12:37:23 2011
Errors in file /home/oracle/product/10.1.0/db_1/admin/orcl/udump/orcl_ora_19084.trc:
ORA-00600: internal error code, arguments: [4194], [75], [7], [], [], [], [], []
Doing block recovery for file 2 block 25323
Block recovery range from rba 1.65.0 to scn 0.996740294
Recovery of Online Redo Log: Thread 1 Group 1 Seq 1 Reading mem 0
Mem# 0 errs 0: /home/oracle/product/10.1.0/oradata/orcl/redo01.log
Block recovery completed at rba 1.67.16, scn 0.996740297
Doing block recovery for file 2 block 25
Block recovery range from rba 1.65.0 to scn 0.996740301
Recovery of Online Redo Log: Thread 1 Group 1 Seq 1 Reading mem 0
Mem# 0 errs 0: /home/oracle/product/10.1.0/oradata/orcl/redo01.log
Block recovery completed at rba 1.71.16, scn 0.996740302
Tue Jul 12 12:37:24 2011
Errors in file /home/oracle/product/10.1.0/db_1/admin/orcl/udump/orcl_ora_19084.trc:
ORA-00607: Internal error occurred while making a change to a data block
ORA-00600: internal error code, arguments: [4194], [75], [7], [], [], [], [], []
Error 607 happened during db open, shutting down database
USER: terminating instance due to error 607
Instance terminated by USER, pid = 19084
ORA-1092 signalled during: alter database open resetlogs...
************************************************************************************************************************************************************************************************

Recovery of a lost datafile without backup

Its the demo for recovery of a lost datafile without backup,but you should have database in archivelog
in order to make complete recovery,otherwise in noarchivelog mode you may lose some data.Every steps is
self explainatory so i feel need'nt to add some textual description during demo
If any findings can be elaborate more please do comments.
SQL*Plus: Release 10.1.0.2.0 - Production on Fri Feb 8 10:35:24 2008
Copyright (c) 1982, 2004, Oracle. All rights reserved.
Connected to:
Oracle Database 10g Enterprise Edition Release 10.1.0.2.0 - Production
With the Partitioning, OLAP and Data Mining options
SQL> select name from v$database
2 /
NAME
ORCL
SQL> create tablespace my_tablespace datafile 'C:\oracle\product\10.1.0\oradata\orcl\my_datafile.dbf' size 500M
2 /
Tablespace created.
SQL> set linesize 1000
SQL> select * from v$tablespace
2 /
       TS# NAME                           INC BIG FLA
         0 SYSTEM                         YES NO YES
         1 UNDOTBS1                       YES NO YES
         2 SYSAUX                         YES NO YES
         4 USERS                          YES NO YES
         3 TEMP                           YES NO YES
         6 EXAMPLE                        YES NO YES
         9 MY_TABLESPACE                  YES NO YES
7 rows selected.
SQL> alter user scott default tablespace my_tablespace
2 /
User altered.
SQL> conn scott/tiger@orcl
Connected.
SQL> create table my_table as select * from all_objects
2 /
Table created.
SQL> desc my_table
Name
OWNER
OBJECT_NAME
SUBOBJECT_NAME
OBJECT_ID
DATA_OBJECT_ID
OBJECT_TYPE
CREATED
LAST_DDL_TIME
TIMESTAMP
STATUS
TEMPORARY
GENERATED
SECONDARY
SQL> conn sys/sys@orcl as sysdba
Connected.
SQL> shutdown immediate
Database closed.
Database dismounted.
ORACLE instance shut down.
Microsoft Windows XP [Version 5.1.2600]
(C) Copyright 1985-2001 Microsoft Corp.
C:\>cd C:\oracle\product\10.1.0\oradata\orcl
C:\oracle\product\10.1.0\oradata\orcl>dir *.dbf
Volume in drive C has no label.
Volume Serial Number is F49D-FF2B
Directory of C:\oracle\product\10.1.0\oradata\orcl
02/08/2008 10:41 AM       157,294,592 EXAMPLE01.DBF
02/08/2008 10:41 AM       524,296,192 MY_DATAFILE.DBF
02/08/2008 10:41 AM       283,123,712 SYSAUX01.DBF
02/08/2008 10:41 AM       482,353,152 SYSTEM01.DBF
02/07/2008 11:43 PM       104,865,792 TEMP01.DBF
02/08/2008 10:41 AM        31,465,472 UNDOTBS01.DBF
02/08/2008 10:41 AM        56,369,152 USERS01.DBF
               7 File(s) 1,639,768,064 bytes
               0 Dir(s) 63,114,174,464 bytes free
C:\oracle\product\10.1.0\oradata\orcl>del my_datafile.dbf
C:\oracle\product\10.1.0\oradata\orcl>dir *.dbf
Volume in drive C has no label.
Volume Serial Number is F49D-FF2B
Directory of C:\oracle\product\10.1.0\oradata\orcl
02/08/2008 10:41 AM       157,294,592 EXAMPLE01.DBF
02/08/2008 10:41 AM       283,123,712 SYSAUX01.DBF
02/08/2008 10:41 AM       482,353,152 SYSTEM01.DBF
02/07/2008 11:43 PM       104,865,792 TEMP01.DBF
02/08/2008 10:41 AM        31,465,472 UNDOTBS01.DBF
02/08/2008 10:41 AM        56,369,152 USERS01.DBF
               6 File(s) 1,115,471,872 bytes
               0 Dir(s) 63,638,204,416 bytes free
C:\oracle\product\10.1.0\oradata\orcl>
SQL> startup
ORACLE instance started.
Total System Global Area 171966464 bytes
Fixed Size                   787988 bytes
Variable Size             145488364 bytes
Database Buffers           25165824 bytes
Redo Buffers                 524288 bytes
Database mounted.
ORA-01157: cannot identify/lock data file 6 - see DBWR trace file
ORA-01110: data file 6: 'C:\ORACLE\PRODUCT\10.1.0\ORADATA\ORCL\MY_DATAFILE.DBF'
SQL> select * from v$recover_file
2 /
     FILE# ONLINE ONLINE_ ERROR                                                                CHANGE# TIME
         6 ONLINE ONLINE FILE NOT FOUND                                                             0
SQL> alter database create datafile 'C:\ORACLE\PRODUCT\10.1.0\ORADATA\ORCL\MY_DATAFILE.DBF'
2 as 'C:\ORACLE\PRODUCT\10.1.0\ORADATA\ORCL\MY_DATAFILE01.DBF'
3 /
Database altered.
C:\oracle\product\10.1.0\oradata\orcl>dir my_*.dbf
Volume in drive C has no label.
Volume Serial Number is F49D-FF2B
Directory of C:\oracle\product\10.1.0\oradata\orcl
02/08/2008 10:53 AM       524,296,192 MY_DATAFILE01.DBF
               1 File(s)    524,296,192 bytes
               0 Dir(s) 63,110,365,184 bytes free
C:\oracle\product\10.1.0\oradata\orcl>
SQL> recover tablespace my_tablespace
Media recovery complete.
SQL> alter database open
2 /
Database altered.
SQL> conn scott/tiger@orcl
Connected.
SQL> desc my_table
Name                                      Null?    Type
OWNER                                              VARCHAR2(30)
OBJECT_NAME                                        VARCHAR2(30)
SUBOBJECT_NAME                                     VARCHAR2(30)
OBJECT_ID                                          NUMBER
DATA_OBJECT_ID                                     NUMBER
OBJECT_TYPE                                        VARCHAR2(19)
CREATED                                            DATE
LAST_DDL_TIME                                      DATE
TIMESTAMP                                          VARCHAR2(19)
STATUS                                             VARCHAR2(7)
TEMPORARY                                          VARCHAR2(1)
GENERATED                                          VARCHAR2(1)
SECONDARY                                          VARCHAR2(1)
SQL> Khurram
http://oraware.blogspot.com/

When the create tablespace information is in the current control file and database is in archive log mode,
SQL>recover datafile 6;
won't help??

Recover without backup

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