ROLLBACK SEGMENTS OPERATION

Hello Everyone
This is the first time I am a forum member and I'm figuring out how it works because I have a very big problem
Look, I'm a support engineer and, as you know, the code of the application is not own by me.
Three weeks ago I received a report which is related with the Rollback operation.
There's a process which delete old data from my database and, normally, this process has three parts, as shown in the alert_dbinstance.log:
Wed May 17 03:00:08 2000
alter ROLLBACK SEGMENT CLEANUP_RS0 ONLINE
Wed May 17 03:00:08 2000
Completed: alter ROLLBACK SEGMENT CLEANUP_RS0 ONLINE
Wed May 17 04:52:25 2000
alter ROLLBACK SEGMENT CLEANUP_RS0 SHRINK
Wed May 17 04:52:26 2000
Completed: alter ROLLBACK SEGMENT CLEANUP_RS0 SHRINK
Wed May 17 04:52:26 2000
alter ROLLBACK SEGMENT CLEANUP_RS0 OFFLINE
Completed: alter ROLLBACK SEGMENT CLEANUP_RS0 OFFLINE
But, one day, the server crashed and this process didn't finish:
Sat May 20 03:00:03 2000
alter ROLLBACK SEGMENT CLEANUP_RS0 ONLINE
Sat May 20 03:00:03 2000
Completed: alter ROLLBACK SEGMENT CLEANUP_RS0 ONLINE
Sat May 20 04:39:09 2000
the next messages about this process are these:
Sun May 21 03:00:04 2000
alter ROLLBACK SEGMENT CLEANUP_RS0 ONLINE
Sun May 21 03:00:04 2000
ORA-1636 signalled during: alter ROLLBACK SEGMENT CLEANUP_RS0 ONLINE...
Sun May 21 03:10:10 2000
Thread 1 advanced to log sequence 303
Current log# 1 seq# 303 mem# 0: /usr/users/fraude/dblinks/redo_db/dbfraude_log0.dbf
Sun May 21 03:11:48 2000
alter ROLLBACK SEGMENT CLEANUP_RS0 SHRINK
Sun May 21 03:11:49 2000
Completed: alter ROLLBACK SEGMENT CLEANUP_RS0 SHRINK
Sun May 21 03:11:49 2000
alter ROLLBACK SEGMENT CLEANUP_RS0 OFFLINE
Completed: alter ROLLBACK SEGMENT CLEANUP_RS0 OFFLINE
Since this day, the delete process sends this message:
--- Fault (4) Notify (3) : 2000-06-01 03:00:01 ---
Message (400020): Database Operation Failed
Partition: 0
Module (13000): Daily Cleanup
Description: ORA-00955: name is already used by an existing object
My question here is : Is there a way, using oracle, to identify this object? Can I find the objects with a failure register in a table? in a log file?
thanks for your comments and your efforts. I'll be very thankful.
null

It seems you should look here:
ORA-1636 signalled during: alter ROLLBACK SEGMENT CLEANUP_RS0 ONLINE...
Looks like you have ORA-01636 error:
rollback segment 'string' is already online
I suggest you check Oracle documentation about this error. Seems to me your process try to access rollback segment that is already in use.
<BLOCKQUOTE><font size="1" face="Verdana, Arial">quote:</font><HR>Originally posted by German Garcia Ibarra ([email protected]):
[b]Hello Everyone
This is the first time I am a forum member and I'm figuring out how it works because I have a very big problem
Look, I'm a support engineer and, as you know, the code of the application is not own by me.
Three weeks ago I received a report which is related with the Rollback operation.
There's a process which delete old data from my database and, normally, this process has three parts, as shown in the alert_dbinstance.log:
Wed May 17 03:00:08 2000
alter ROLLBACK SEGMENT CLEANUP_RS0 ONLINE
Wed May 17 03:00:08 2000
Completed: alter ROLLBACK SEGMENT CLEANUP_RS0 ONLINE
Wed May 17 04:52:25 2000
alter ROLLBACK SEGMENT CLEANUP_RS0 SHRINK
Wed May 17 04:52:26 2000
Completed: alter ROLLBACK SEGMENT CLEANUP_RS0 SHRINK
Wed May 17 04:52:26 2000
alter ROLLBACK SEGMENT CLEANUP_RS0 OFFLINE
Completed: alter ROLLBACK SEGMENT CLEANUP_RS0 OFFLINE
But, one day, the server crashed and this process didn't finish:
Sat May 20 03:00:03 2000
alter ROLLBACK SEGMENT CLEANUP_RS0 ONLINE
Sat May 20 03:00:03 2000
Completed: alter ROLLBACK SEGMENT CLEANUP_RS0 ONLINE
Sat May 20 04:39:09 2000
the next messages about this process are these:
Sun May 21 03:00:04 2000
alter ROLLBACK SEGMENT CLEANUP_RS0 ONLINE
Sun May 21 03:00:04 2000
ORA-1636 signalled during: alter ROLLBACK SEGMENT CLEANUP_RS0 ONLINE...
Sun May 21 03:10:10 2000
Thread 1 advanced to log sequence 303
Current log# 1 seq# 303 mem# 0: /usr/users/fraude/dblinks/redo_db/dbfraude_log0.dbf
Sun May 21 03:11:48 2000
alter ROLLBACK SEGMENT CLEANUP_RS0 SHRINK
Sun May 21 03:11:49 2000
Completed: alter ROLLBACK SEGMENT CLEANUP_RS0 SHRINK
Sun May 21 03:11:49 2000
alter ROLLBACK SEGMENT CLEANUP_RS0 OFFLINE
Completed: alter ROLLBACK SEGMENT CLEANUP_RS0 OFFLINE
Since this day, the delete process sends this message:
--- Fault (4) Notify (3) : 2000-06-01 03:00:01 ---
Message (400020): Database Operation Failed
Partition: 0
Module (13000): Daily Cleanup
Description: ORA-00955: name is already used by an existing object
My question here is : Is there a way, using oracle, to identify this object? Can I find the objects with a failure register in a table? in a log file?
thanks for your comments and your efforts. I'll be very thankful.
<HR></BLOCKQUOTE>
null

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Further to an update on a table in database, I realize that I have done an error and I want to come back in the state of table before this operation.
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Edited by: 794982 on 12 nov. 2010 05:05
Edited by: 794982 on 12 nov. 2010 05:05
Edited by: 794982 on 12 nov. 2010 05:06

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First of all, the statement is talking about old manual undo management using rollback segment.
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Rollback Segment --< Transactions --< Undo Entries
http://download.oracle.com/docs/cd/B10501_01/server.920/a96524/b_deprec.htm
Contents of a Rollback Segment
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When Rollback Information Is Required
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ORA-01552: cannot use system rollback segment for non-system tablespace 'string'
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