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

Similar Messages

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 controlfile and redo logs

Hi guys,
I am doing a testing with an Oracle Database 11.1.0.7.0, I want recover a database in this scenario without using RMAN:
-All controlfiles are missing
-All redo logs are missing
-I have a Backup Controlfile To Trace Resetlogs (bkp_controlfile.sql)
-The database is in archivelog mode
-The database was created with OMF (Oracle Managed Files)
So I have done this steps:
1) When the database was opened I rename all controlfiles and all redo logs
2) Shutdown Abort
3) I run the bkp_controlfile.sql, here I have a problem...
The database put in NOMOUNT, the controlfile was created and started the RECOVER DATABASE USING BACKUP CONTROLFILE, but when run ALTER DATABASE OPEN RESETLOGS; appear this:
ERROR at line 1:
ORA-01113: file 1 needs media recovery
ORA-01110: data file 1:
'/u02/app/oracle/oradata/OMF/datafile/o1_mf_system_68hzcb2z_.dbf'I wasn´t expect this because I don´t want recover a datafile, I only want open with resetlogs.
Any suggestion to help me?
Thanks a lot.

Excelent! Thanks for your answers Markus and Hemant.
In conclusion...
- If we have all redo logs availables we can recreate the control file and recover the database without any problems using backup controlfile to trace noresetlogs*.
- if we haven´t all redo logs availables, there are 2 situations:
1) If the database shutdown properly:_ We will be able to open the database using recover database using backup controlfile until cancel*.
2) If the database doesn´t shutdown properly:_ We won´t be able to open the database with only a backup controlfile to trace.
With all this I close this thread. Was very good experience.
If anyone would add something will be welcome.
Thanks for all
I wish add the results of one of my tests: if I did all the steps in only one session of sqlplus I can shutdown properly the database, but if do the shutdown immediate* in a new session I can´t shutdown properly the database. Here I post the output:
ALL IN ONE SESSION*
[oracle@prueba ~]$ $ORACLE_HOME/bin/sqlplus / as sysdba
SQL*Plus: Release 11.1.0.7.0 - Production on Wed Sep 22 13:58:10 2010
Copyright (c) 1982, 2008, Oracle. All rights reserved.
Connected to:
Oracle Database 11g Enterprise Edition Release 11.1.0.7.0 - Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options
SQL> ALTER SYSTEM SWITCH LOGFILE;
System altered.
SQL> SHUTDOWN IMMEDIATE
Database closed.
Database dismounted.
ORACLE instance shut down.
SQL> STARTUP
ORACLE instance started.
Total System Global Area 631914496 bytes
Fixed Size                  1315224 bytes
Variable Size             377491048 bytes
Database Buffers          247463936 bytes
Redo Buffers                5644288 bytes
Database mounted.
Database opened.
SQL> SHUTDOWN IMMEDIATE
Database closed.
Database dismounted.
ORACLE instance shut down.
SQL> @/home/oracle/bkp_controlfile.sql
ORACLE instance started.
Total System Global Area 631914496 bytes
Fixed Size                  1315224 bytes
Variable Size             377491048 bytes
Database Buffers          247463936 bytes
Redo Buffers                5644288 bytes
Control file created.
SQL> RECOVER DATABASE USING BACKUP CONTROLFILE UNTIL CANCEL;
ORA-00279: change 398764 generated at 09/22/2010 14:09:49 needed for thread 1
ORA-00289: suggestion :
/u02/app/oracle/flash_recovery_area/OMF/archivelog/2010_09_22/o1_mf_1_40_%u_.arc
ORA-00280: change 398764 for thread 1 is in sequence #40
Specify log: {<RET>=suggested | filename | AUTO | CANCEL}
CANCEL
Media recovery cancelled.
SQL> ALTER DATABASE OPEN RESETLOGS;
Database altered.
SQL> ALTER TABLESPACE TEMP ADD TEMPFILE '/u02/app/oracle/oradata/OMF/datafile/o1_mf_temp_69n3z3vv_.tmp' SIZE 50331648 REUSE AUTOEXTEND ON NEXT 655360 MAXSIZE 32767M;
Tablespace altered.
SQL>
ALL IN DIFERENT SESSIONS*
[oracle@prueba ~]$ $ORACLE_HOME/bin/sqlplus / as sysdba
SQL*Plus: Release 11.1.0.7.0 - Production on Wed Sep 22 13:55:47 2010
Copyright (c) 1982, 2008, Oracle. All rights reserved.
Connected to:
Oracle Database 11g Enterprise Edition Release 11.1.0.7.0 - Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options
SQL> ALTER DATABASE BACKUP CONTROLFILE TO TRACE AS '/home/oracle/bkp_controlfile.sql' RESETLOGS;
Database altered.
SQL> SHUTDOWN IMMEDIATE
Database closed.
Database dismounted.
ORACLE instance shut down.
SQL> STARTUP MOUNT
ORACLE instance started.
Total System Global Area 631914496 bytes
Fixed Size                  1315224 bytes
Variable Size             377491048 bytes
Database Buffers          247463936 bytes
Redo Buffers                5644288 bytes
Database mounted.
SQL> ALTER DATABASE ARCHIVELOG;
Database altered.
SQL> ALTER DATABASE OPEN;
Database altered.
SQL> ALTER SYSTEM SWITCH LOGFILE;
System altered.
SQL> ALTER SYSTEM SWITCH LOGFILE;
System altered.
SQL> exit
Disconnected from Oracle Database 11g Enterprise Edition Release 11.1.0.7.0 - Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options
[oracle@prueba ~]$ $ORACLE_HOME/bin/sqlplus / as sysdba
SQL*Plus: Release 11.1.0.7.0 - Production on Wed Sep 22 13:58:10 2010
Copyright (c) 1982, 2008, Oracle. All rights reserved.
Connected to:
Oracle Database 11g Enterprise Edition Release 11.1.0.7.0 - Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options
SQL> SHUTDOWN IMMEDIATE
ORA-00210: cannot open the specified control file
ORA-00202: control file: '/u02/app/oracle/oradata/OMF/controlfile/o1_mf_69n3x6n5_.ctl'
ORA-27041: unable to open file
Linux Error: 2: No such file or directory
Additional information: 3

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?

How to recover database without controlfile and redo files?

Hi all,
If I just have datafiles using hot backup saving in another machine, and all files in current database were lost including data files,control files and redo log files .
How can I recover database just using hot backup datafiles? without control file, without redo files.
Your help is greatly appreciated.

alter database backup control file to trace
SQL> alter database backup controlfile to trace;
Go to udump folder in oracle home folder check the trace file copy these lines
CREATE CONTROLFILE REUSE DATABASE "O10G1 NORESETLOGS NOARCHIVELOG
MAXLOGFILES 16
MAXLOGMEMBERS 3
MAXDATAFILES 100
MAXINSTANCES 8
MAXLOGHISTORY 454
LOGFILE
GROUP 1 'E:\ORACLE2\PRODUCT\10.1.0\ORADATA\O10G1\REDO01.LOG' SIZE 10M,
GROUP 2 'E:\ORACLE2\PRODUCT\10.1.0\ORADATA\O10G1\REDO02.LOG' SIZE 10M,
GROUP 3 'E:\ORACLE2\PRODUCT\10.1.0\ORADATA\O10G1\REDO03.LOG' SIZE 10M
-- STANDBY LOGFILE
DATAFILE
'E:\ORACLE2\PRODUCT\10.1.0\ORADATA\O10G1\SYSTEM01.DBF',
'E:\ORACLE2\PRODUCT\10.1.0\ORADATA\O10G1\UNDOTBS01.DBF',
'E:\ORACLE2\PRODUCT\10.1.0\ORADATA\O10G1\SYSAUX01.DBF',
'E:\ORACLE2\PRODUCT\10.1.0\ORADATA\O10G1\USERS01.DBF'
CHARACTER SET WE8MSWIN1252
Change the new database name abc
and REUSE replaced by SET and NORESTLOGS replaced by RESTLOGS above lines.
Save as C1.sql
C:\ set oracle_sid=instance name
C:\>sqlplus /nolog
SQL*Plus: Release 10.1.0.2.0 - Production on Tue Apr
11 06:44:28 2006
Copyright (c) 1982, 2004, Oracle. All rights reserved.
SQL> connect / as sysdba;
Connected to an idle instance.
SQL> startup nomount
pfile='C:\oracle\product\10.1.0\admin\jeeno\pfile\jeenoinit.ora'
ORACLE instance started.
Total System Global Area 171966464 bytes
Fixed Size 787988 bytes
Variable Size 145750508 bytes
Database Buffers 25165824 bytes
Redo Buffers 262144 bytes
SQL> @c1.sql
Control file created.
SQL> alter database open resetlogs;
Database altered

How to recover database without archive files

Hello,
I've a test database without archive files and I need to know how to recover it without using archive files.
What is SQL command to recover database wthout archives?
Thanks in advance for your help.
Regards,
Carles

There are serveral information missing in this posting and as a support personnel, I would like to find out more when I see postings like this.
1. This person wants to "Test" his backup and recovery in NOARCHIVELOG mode.
2. He/She did not say his database had already crashed or had a problem.
3. He/She did not give any indication the kind of scenario he wants to recover from.
4. He/She did not mention the state of his database at the time of he posting.
5. He/She did not mention the Release of his Oracle Server or Platform.
6. He/She did not mention the type of backup he already has in place (although provided later as Full COLD Backup). How "genuine" is the back?
7. What actions has already been taken to attempt recovery.
In my support experience, I normally would go through a list of questions witht he use/client to get the full picture of the current status of the database before I give answers that would worsen situations, especially in a Disaster Recovery sitaution.
Personaly, I would suggest you have a look at the list above. One of the most important is number 3 (The Recovery Scenario), then number 4, number 6 and 7. Number 7 will determine the situation of your database. So, when you ask for SQL commands to use, there are different commands for different kind of recovery depending on what has gone wrong or what kind of file is damaged (Datafiles, Logfiles, Control Files, one tablespace, one table, entire database gone, etc).

Does anyone know how to recover photos without backup?

Just want to ask if is it possible to recover photos without icloud or itunes backup?
Here's the thing... Im gonna sync my ipadmini to my computer then it asks if i want to backup my ipad.... Then i select the name of the ipadmini to backup.. Unfortunately the one i have selected was my other ipad2.. I got confused with the name of my 2 ipads... So my ipad2 setting and photos is now on my ipadmini.. Is it possible to retrieve the photos of ipadmini? But sadly i didnt backed it up before.. Is there a third party app or software to retrieve those? Please help... Thanks

See:
RECOVER DELETED MESSAGES FROM IPHONE TEXT CONTACTS PHOTOS SMS VIDEO PICTURES
You have to sent the iPod to them.

Recover datafile without backup

9.2.0.4 archive log mode
I delete the data file for statspack, and I use cp do hot backup every day but I did not do backup for statspack tablespace, now i want restore the datafile,how can i do?(i try use alter database create datafile as, but faild with ora-1516).
thanks.

Well, you can't really have it both ways!
Either the file exists and needs recovery, or it doesn't, in which case referencing it will get you an ORA-01516 error.
You said you deleted the file (from the disk, presumably?). That would not have removed a reference to that file from the control file. Only a 'drop tablespace' command would have done that. Did you "delete the file" by issuing that command?
Because if you did, you can't recover the file, period.
The technique that others have mentioned (of re-creating a 'blank' file and applying all redo to it since the time of its original creation) only works if the control file is already aware of the nature and characteristics of the original file. If you did a 'drop' command to remove the original, you've wiped the control file's awareness of the files attributes and properties and, short of restoring a backup you don't possess, you're stuffed, I'm afraid.

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.

Recover database from cold backup and add ol archivelogs....

Hello!
Scenarion : I have create in 1 january cold backup of my database. I have from 1 to 4 January all archive logs generated by my database. My database gone in 4 January.
Solution question : How can i restore database using cold backup a than add info from archivelogs to recovered database to do database consist from disaster day.
Regards... Marcin

1. Kill current instance with SHUTDOWN ABORT.
2. Copy all control files and data files from your cold backup to original destination.
3. Make sure all archived redo logs from 01-JAN to 04-JAN are available in the database archive destination (LOG_ARCHIVE_DEST or LOG_ARCHIVE_DEST_x).
4. Run as SYSDBA:
startup mount
recover database using backup controlfile until cancel;When prompted for something like
ORA-00279: change 864868 generated at 01/14/2010 09:30:10 needed for thread 1
ORA-00289: suggestion :
C:\ORACLEXE\APP\ORACLE\FLASH_RECOVERY_AREA\XE\ARCHIVELOG\2010_01_15\O1_MF_1_22_%
U_.ARC
ORA-00280: change 864868 for thread 1 is in sequence #22enter:
AUTOWhen you get something like:
ORA-00308: cannot open archived log
'C:\ORACLEXE\APP\ORACLE\FLASH_RECOVERY_AREA\XE\ARCHIVELOG\2010_01_15\O1_MF_1_29_
%U_.ARC'
ORA-27041: unable to open file
OSD-04002: ouverture impossible du fichier
O/S-Error: (OS 2) Le fichier spécifié est introuvable.run
alter database open resetlogs;

How to Recover database from old backup and full archive log file

Hi Oracle expert!
I met problem when restore my oracle database.
In my case:
- My database version: 10.2.0.2
- I have a database full backup (01-Nov)
- I have all Archived log file from (01-Nov -> 05-Nov)
- My database drop in 05-Nov with disk error (no datafile, no redo..).
- I have no any RMAN backup from (01-Nov -> 05-Nov)
How can i restore my database to 05-Nov?
Thanks

user10280724 wrote:
Hi Chinar.
When i used RMAN flow as your step, but i met the problem!
- After recover database i select sequence#, applied from v$archived_log;
--> it apply newest archived log that i had.
- but when I select Data from table created between 01-Nov to 05-Nov, it not found!
Not the same way the step:
SQL> RECOVER DATABASE USING BACKUP CONTROLFILE UNTIL CANCEL?
It apply newest the same archived log i had table created between 01-Nov to 05-Nov.
How can i do with RMAN to recover my table?That is not possible,if your all available archive logs applied using rman or through sqlplus(recover database using backup controlfile until cancel) and one of these logs contain your table then there are not any problems.So there are not any difference between recovery using rman and user managed(using sqlplus),but there main matter is applying all archive logs.So first check through rman list copy of archivelog all or list backup of archivelog all and identify there in rman repository is any information or not about these logs.

Recover database in NOarchivelog mode :)

Hi all. How to recover a database wich is in noarchivelog mode? B-)
Suppose,
I have 3 redolog groups (with two members in each, the second members are located on another drive ). When first redo log group was 1/2 full I took a full backup. Then there were 2 switches from first to second and from second to third. Now the currnet redolog group - 3 (just started). At this point we faced media failer. How to roll forward changes using backup + online redologs?
Edited by: Junior Oracle DBA on Oct 16, 2008 1:53 PM

Restore your database cold backup (excluding redo logs).
Then issue this command :
RECOVER DATABASE USING BACKUP CONTROLFILE
provide the names of the last ACTIVE / CURRENT Redo Logs in the database when Oracle prompts for an ArchiveLog.
When Oracle has finished recovery to a consistent point in time, it will return to the command prompt without any error.
Now issue this command :
ALTER DATABASE OPEN RESETLOGS
You would have a Complete Recovery.
This is provided that Oracle had NOT cycled through all the Online Redo Logs since the time when the Cold Backup was taken. (If Oracle had cycled through all the Online Redo Logs, it would have overwrriten the oldest log because it wasn't in ArchiveLog mode).
Hemant K Chitale
http://hemantoracledba.blogspot.com

Lost seq of redo log due to corruption and cannot recover database.

Hi!
This db I am working on is a test database running 10.2.0.3 on OEL5. Unfortunately due to some human error, we lost the redo log sequence 1_28_xxxxxx.redo. As this was a non-critical db, we didn't plan any backups for the db... and now whenever I try to open the db I get the error:
SQL> alter database open;
alter database open
ERROR at line 1:
ORA-01589: must use RESETLOGS or NORESETLOGS option for database open
SQL> alter database open resetlogs;
alter database open resetlogs
ERROR at line 1:
ORA-01194: file 1 needs more recovery to be consistent
ORA-01110: data file 1: '/opt/app/oracle/oradata/tadb1/system01.dbf'
SQL> recover until cancel
ORA-00279: change 510956 generated at 08/31/2010 22:00:17 needed for thread 1
ORA-00289: suggestion :
/opt/app/oracle/oradata/tadb1/archive/1_28_728336713.dbf
ORA-00280: change 510956 for thread 1 is in sequence #28
SQL> recover database until time '31-AUG-2010 22:00:00';
ORA-00283: recovery session canceled due to errors
ORA-00314: log 1 of thread 1, expected sequence# 28 doesn't match 0
ORA-00312: online log 1 thread 1: '/opt/app/oracle/oradata/tadb1/redo01.log'
Is there a way to open the database!?
Thanks,
AB007

Sorry for the late response guys... had called it a night earlier... well, I tried your suggestion... but still, the database can't recover -
SQL> recover database using backup controlfile until cancel;
ORA-00279: change 510958 generated at 09/02/2010 23:56:37 needed for thread 1
ORA-00289: suggestion : /opt/app/oracle/oradata/tadb1/archive/1_1_728697397.dbf
ORA-00280: change 510958 for thread 1 is in sequence #1
Specify log: {<RET>=suggested | filename | AUTO | CANCEL}
CANCEL
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: '/opt/app/oracle/oradata/tadb1/system01.dbf'
ORA-01112: media recovery not started
SQL> alter database open resetlogs;
alter database open resetlogs
ERROR at line 1:
ORA-01092: ORACLE instance terminated. Disconnection forced
ALERT LOG
ALTER DATABASE RECOVER database using backup controlfile until cancel
Fri Sep 3 10:14:22 2010
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.
parallel recovery started with 2 processes
ORA-279 signalled during: ALTER DATABASE RECOVER database using backup controlfile until cancel ...
Fri Sep 3 10:14:25 2010
ALTER DATABASE RECOVER CANCEL
ORA-1547 signalled during: ALTER DATABASE RECOVER CANCEL ...
Fri Sep 3 10:14:26 2010
ALTER DATABASE RECOVER CANCEL
ORA-1112 signalled during: ALTER DATABASE RECOVER CANCEL ...
Fri Sep 3 10:14:43 2010
alter database open resetlogs
Fri Sep 3 10:14:43 2010
RESETLOGS is being done without consistancy checks. This may result
in a corrupted database. The database should be recreated.
RESETLOGS after incomplete recovery UNTIL CHANGE 510958
Resetting resetlogs activation ID 2129258410 (0x7ee9e7aa)
Online log /opt/app/oracle/oradata/tadb1/redo02.log: Thread 1 Group 2 was previously cleared
Online log /opt/app/oracle/oradata/tadb1/redo03.log: Thread 1 Group 3 was previously cleared
Fri Sep 3 10:14:45 2010
Setting recovery target incarnation to 3
Fri Sep 3 10:14:45 2010
Assigning activation ID 2129271722 (0x7eea1baa)
Thread 1 opened at log sequence 1
Current log# 1 seq# 1 mem# 0: /opt/app/oracle/oradata/tadb1/redo01.log
Successful open of redo thread 1
Fri Sep 3 10:14:45 2010
MTTR advisory is disabled because FAST_START_MTTR_TARGET is not set
Fri Sep 3 10:14:45 2010
SMON: enabling cache recovery
Fri Sep 3 10:14:45 2010
Errors in file /opt/app/oracle/admin/tadb1/udump/tadb1_ora_5949.trc:
ORA-00600: internal error code, arguments: [4000], [6], [], [], [], [], [], []
Fri Sep 3 10:14:45 2010
Errors in file /opt/app/oracle/admin/tadb1/udump/tadb1_ora_5949.trc:
ORA-00704: bootstrap process failure
ORA-00704: bootstrap process failure
ORA-00600: internal error code, arguments: [4000], [6], [], [], [], [], [], []
Fri Sep 3 10:14:45 2010
Error 704 happened during db open, shutting down database
USER: terminating instance due to error 704
Instance terminated by USER, pid = 5949
ORA-1092 signalled during: alter database open resetlogs...

Recover Database in RMAN vs SQL*PLUS

Hello,
Oracle 11.2.0.1, Oracle Linux 5.5 UEK.
I recently did a "recover database" in sql*plus, but an attempt to open the database gave ORA-01113, complaining the system tablespace requried more recovery. Then I used RMAN (nocatalog) and after the same "recover database" command I was able to open the database.
It seems there are differences between SQL*PLUS and RMAN "recover database" command. I have not been able to locate the chapter in the Oracle documentation that explains the difference. I have some ideas, but...
Thanks.
h3. Solution Summary:
The recover command in RMAN compared to SQL*Plus implements a more user friendly processing logic based on the current detected scenario. For instance, a RMAN recover database command may actually perform a "recover database using backup controlfile until cancel" and automatically apply all archived and online redo logs if available. The same can be achieved with the recover command in SQL*plus, but will have to be done manually.
Edited by: Dude on Jan 7, 2011 12:30 PM

Dude wrote:
I did not remove any datafiles or redo logs. it is the same restore operation as before, and again RMAN "recovery database" succeeds, whereas SQL recover has trouble. This tells me something is different between the two methods. For one, RMAN does not requrie to specify "using backup controlfile".
Maybe someting about "resetlogs" that that RMAN recover can handle and SQL recover not?No,problem is there.If you using rman execute RECOVER DATABASE it also will apply online logs(if available) also and as result you will get complete recovery however you must open database with resetlogs option due to you recovered database using backup controlfile.So also you can recover and open database applying this online logs.After executing RECOVER DATABASE USING BACKUP CONTROLFILE you have to pass full path of online log then press ENTER so log will apply and you can open database with RESETLOGS.See below
C:\Documents and Settings\chinar>rman target sys/sm
Recovery Manager: Release 10.2.0.1.0 - Production on Fri Jan 7 17:47:49 2011
Copyright (c) 1982, 2005, Oracle. All rights reserved.
connected to target database (not started)
RMAN> startup nomount;
Oracle instance started
Total System Global Area     138412032 bytes
Fixed Size                     1247708 bytes
Variable Size                 71304740 bytes
Database Buffers              58720256 bytes
Redo Buffers                   7139328 bytes
RMAN> restore controlfile from 'D:\oracle\product\10.2.0\flash_recovery_area\T\B
ACKUPSET\2011_01_07\O1_MF_NCSNF_TAG20110107T171001_6LG48JR5_.BKP'
2> ;
Starting restore at 07-JAN-11
using target database control file instead of recovery catalog
allocated channel: ORA_DISK_1
channel ORA_DISK_1: sid=157 devtype=DISK
channel ORA_DISK_1: restoring control file
channel ORA_DISK_1: restore complete, elapsed time: 00:00:03
output filename=D:\ORACLE\PRODUCT\10.2.0\ORADATA\T\CONTROL01.CTL
output filename=D:\ORACLE\PRODUCT\10.2.0\ORADATA\T\CONTROL02.CTL
output filename=D:\ORACLE\PRODUCT\10.2.0\ORADATA\T\CONTROL03.CTL
Finished restore at 07-JAN-11
RMAN> alter database mount;
database mounted
released channel: ORA_DISK_1
RMAN> restore database;
Starting restore at 07-JAN-11
Starting implicit crosscheck backup at 07-JAN-11
allocated channel: ORA_DISK_1
channel ORA_DISK_1: sid=156 devtype=DISK
Crosschecked 1 objects
Finished implicit crosscheck backup at 07-JAN-11
Starting implicit crosscheck copy at 07-JAN-11
using channel ORA_DISK_1
Finished implicit crosscheck copy at 07-JAN-11
searching for all files in the recovery area
cataloging files...
cataloging done
List of Cataloged Files
=======================
File Name: D:\ORACLE\PRODUCT\10.2.0\FLASH_RECOVERY_AREA\T\BACKUPSET\2011_01_07\O
1_MF_NCSNF_TAG20110107T171001_6LG48JR5_.BKP
using channel ORA_DISK_1
channel ORA_DISK_1: starting datafile backupset restore
channel ORA_DISK_1: specifying datafile(s) to restore from backup set
restoring datafile 00001 to D:\ORACLE\PRODUCT\10.2.0\ORADATA\T\SYSTEM01.DBF
restoring datafile 00002 to D:\ORACLE\PRODUCT\10.2.0\ORADATA\T\UNDOTBS01.DBF
restoring datafile 00003 to D:\ORACLE\PRODUCT\10.2.0\ORADATA\T\SYSAUX01.DBF
restoring datafile 00004 to D:\ORACLE\PRODUCT\10.2.0\ORADATA\T\USERS01.DBF
channel ORA_DISK_1: reading from backup piece D:\ORACLE\PRODUCT\10.2.0\FLASH_REC
OVERY_AREA\T\BACKUPSET\2011_01_07\O1_MF_NNNDF_TAG20110107T171001_6LG45BXS_.BKP
channel ORA_DISK_1: restored backup piece 1
piece handle=D:\ORACLE\PRODUCT\10.2.0\FLASH_RECOVERY_AREA\T\BACKUPSET\2011_01_07
\O1_MF_NNNDF_TAG20110107T171001_6LG45BXS_.BKP tag=TAG20110107T171001
channel ORA_DISK_1: restore complete, elapsed time: 00:01:04
Finished restore at 07-JAN-11
RMAN> recover database;
Starting recover at 07-JAN-11
using channel ORA_DISK_1
starting media recovery
archive log thread 1 sequence 7 is already on disk as file D:\ORACLE\PRODUCT\10.
2.0\ORADATA\T\REDO02.LOG
archive log filename=D:\ORACLE\PRODUCT\10.2.0\ORADATA\T\REDO02.LOG thread=1 sequ
ence=7
media recovery complete, elapsed time: 00:00:03
Finished recover at 07-JAN-11
RMAN> exit
Recovery Manager complete.
C:\Documents and Settings\chinar>sqlplus sys/sm as sysdba
SQL*Plus: Release 10.2.0.1.0 - Production on Fri Jan 7 17:51:31 2011
Copyright (c) 1982, 2005, Oracle. All rights reserved.
Connected to:
Oracle Database 10g Enterprise Edition Release 10.2.0.1.0 - Production
With the Partitioning, OLAP and Data Mining options
SQL> alter database open;
alter database open
ERROR at line 1:
ORA-01589: must use RESETLOGS or NORESETLOGS option for database open
SQL> alter database open resetlogs;
Database altered.
SQL> And above you see lines as
archive log thread 1 sequence 7 is already on disk as file D:\ORACLE\PRODUCT\10.
*2.0\ORADATA\T\REDO02.LOG*
archive log filename=D:\ORACLE\PRODUCT\10.2.0\ORADATA\T\REDO02.LOG thread=1 sequ
ence=7
It means RMAN apply these.So you can apply these using SQLPLUS ALSO.In additionally you can see that from alert log as
alter database recover if needed
start until cancel using backup controlfile
Media Recovery Start
parallel recovery started with 2 processes
ORA-279 signalled during: alter database recover if needed
start until cancel using backup controlfile
Fri Jan 07 17:50:34 2011
alter database recover logfile 'D:\ORACLE\PRODUCT\10.2.0\ORADATA\T\REDO02.LOG'
Fri Jan 07 17:50:34 2011
Media Recovery Log D:\ORACLE\PRODUCT\10.2.0\ORADATA\T\REDO02.LOG
Fri Jan 07 17:50:34 2011
Incomplete recovery applied all redo ever generated.
Recovery completed through change 665263
Completed: alter database recover logfile 'D:\ORACLE\PRODUCT\10.2.0\ORADATA\T\REDO02.LOG'And finally you see clearly that even if you execute RECOVER DATABASE from RMAN it actually execute RECOVER DATABASE UNTIL CANCEL USING BACKUP CONTROLFILE (from alert.log start until cancel using backup controlfile)
And these is not any difference.
Hope that help you and you got answer.

Error in Recover Database - ORA-01547 , ORA-01194 and ORA-01110

Hello folks,
I am facing a problem when recovering a database..
I made each tablespace in backup mode, then copied the datafile. I revert back the tablespace status to normal status.Once all datafiles are copied to target location, i created the control file from the source db.
I started the target db by
sqlplus "/ as sysdba"
then i executed the control file
SQL>@ctrlfile.sql
Control file got created.
SQL>recover database until cancel using backup controlfile;
it asked for archives. I gave the path one by one until everything was done.Now i gave 'cancel' as below.
Specify log: {<RET>=suggested | filename | AUTO | CANCEL}
cancel
ORA-01547: warning: RECOVER succeeded but OPEN RESETLOGS would get error below
ORA-01194: file 377 needs more recovery to be consistent
ORA-01110: data file 377: '<path>/xxfndx01.dbf'
ORA-01112: media recovery not started
Could anyone please tell me where I went wrong and how can I move ahead from this stage???
Later on, when I gave open resetlogs, it gave the same error(as below)
SQL> alter database open resetlogs;
alter database open resetlogs
ERROR at line 1:
ORA-01194: file 377 needs more recovery to be consistent
ORA-01110: data file 377: '<path>/xxfndx01.dbf'
Please let me know the mistake I made, how to avoid that and how to proceed now ???
Thanks,
Cherrish Vaidiyan
[email protected]

Hello Cherrish,
A very good question you have asked. I hope you realize that you're doing an incomplete recovery. There is some amount of information that is still there in the online redo-log, that would not be applied on your target db. Moreover when you're using backup controlfile, you do not know till which point you need to apply archive logs.
For incomplete recovery, Oracle for some reason has been very strict about the recover database command. i.e.
recover database using backup controlfile
recover database using backup controlfile until cancel
Is not same. It also applies to the command that you had given. By giving the command 'recover database using backup controlfile until cancel', you're telling Oracle that incomplete recovery is in process, and you would do resetelogs, to make sure all files are in sync. This is required when you have lost the redo-logs
In case you have just lost the control file. All latest redo-logs, archive-logs and datafiles are okay (or have been restored), then recover database using backup controlfile; would work perfectly okay. and resetlogs would not be required.. and that would be a complete recovery
I hope this all makes sense to you
Regards
Sudhanshu

Recover Database without backup

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