Cannot drop a tablespace

Hi,
A datafile of my database has been deleted from the OS and cannot be recovered. The related tablespace exits in the database.
I want to drop this tablespace, but oracle does not allow me to do so. I dont have the backup of the datafile.
Can something be done.
Regards
ANiL.

Hi
If your database is in archivelog mode and u have all the archive files than u can recover this datafile
no need to drop it or create the controlfile also.
steps are ...
[SUNSHINE ~]$ sqlplus
SQL*Plus: Release 10.1.0.3.0 - Production on Wed Oct 11 16:14:20 2006
Copyright (c) 1982, 2004, Oracle. All rights reserved.
Enter user-name: sys as sysdba
Enter password:
Connected to an idle instance.
SQL> startup
ORACLE instance started.
Total System Global Area 209715200 bytes
Fixed Size 778432 bytes
Variable Size 191897408 bytes
Database Buffers 16777216 bytes
Redo Buffers 262144 bytes
Database mounted.
ORA-01157: cannot identify/lock data file 6 - see DBWR trace file
ORA-01110: data file 6: '/home/oracle/orcl/data/abc.dbf'
SQL> alter database create datafile '/home/oracle/orcl/data/abc.dbf' as '/home/oracle/orcl/data/abc.dbf';
Database altered.
SQL> alter database open;
alter database open
ERROR at line 1:
ORA-01113: file 6 needs media recovery
ORA-01110: data file 6: '/home/oracle/orcl/data/abc.dbf'
SQL> recover database;
Media recovery complete.
SQL> alter database open;
Database altered.
SQL>
Regards,
Symal

Similar Messages

  • Cannot drop undo tablespace with Active extents but no active sessions

    Hi all,
    I am running on 10gr2 oracle database in a Linux 32 bit environment.
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    Now what I'm trying to do is to drop the old undo tablespace like the one discussed here Change undo tablespace in Oracle - Switch Oracle's Undo tablespace.
    My problem is I have an Active extent but no active session corresponding to it:
    SYS@ccasdb AS SYSDBA > SELECT a.name,b.status
    FROM   v$rollname a,v$rollstat b
    WHERE  a.usn = b.usn
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                      WHERE tablespace_name = 'UNDOTBS1'
                     );  2    3    4    5    6    7    8
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    SYS@ccasdb AS SYSDBA > drop tablespace UNDOTBS1 including contents and datafiles;
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    ERROR at line 1:
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    Regards,
    Tim

    Yes i was able to recover the datafile but the alert_log kept on prompting that it is still corrupted. The datafile's status is online.
    I want to kill the session/s contributing to the PENDING OFFLINE status of the rollback segment so I can already drop the undotablespace and so
    that the alert log will stop prompting for that corrupted datafile in that UNDOTABLESPACE.
    Can i Just alter the tablespace's datafiles to offline drop then just drop it. Then I drop the tablespace?

  • Cannot drop undo tablespace

    Hello:
    I've created a new undo tablespace undotbs2. I've set it to the default undo tablespace. When I've tried to drop the old one, I get the following error:
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    After shutting down the database the problem persist: I cannot drop the old undo tablespace because of the same error.
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    SELECT KTUXEUSN, KTUXESLT, KTUXESQN, /* Transaction ID */ KTUXESTA Status, KTUXECFL Flags
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    A lot of archivelogs are being created at rolling back (30 GB archivelogs per hour). Here a tail of the alertlog file:
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    Thread 1 advanced to log sequence 7382
    Current log# 5 seq# 7382 mem# 0: /ora2/origlogs/webfrbr/redo05_m1.log
    Current log# 5 seq# 7382 mem# 1: /ora3/mirrorlogs/webfrbr/redo05_m2.log
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    Thread 1 advanced to log sequence 7383
    Current log# 6 seq# 7383 mem# 0: /ora2/origlogs/webfrbr/redo06_m1.log
    Current log# 6 seq# 7383 mem# 1: /ora3/mirrorlogs/webfrbr/redo06_m2.log
    Wed Apr 17 06:22:41 2013
    Thread 1 advanced to log sequence 7384
    Current log# 4 seq# 7384 mem# 0: /ora2/origlogs/webfrbr/redo04_m1.log
    Current log# 4 seq# 7384 mem# 1: /ora3/mirrorlogs/webfrbr/redo04_m2.log
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    Current log# 5 seq# 7385 mem# 0: /ora2/origlogs/webfrbr/redo05_m1.log
    Current log# 5 seq# 7385 mem# 1: /ora3/mirrorlogs/webfrbr/redo05_m2.log
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    Current log# 6 seq# 7386 mem# 1: /ora3/mirrorlogs/webfrbr/redo06_m2.log
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    Thread 1 advanced to log sequence 7387
    Current log# 4 seq# 7387 mem# 0: /ora2/origlogs/webfrbr/redo04_m1.log
    Current log# 4 seq# 7387 mem# 1: /ora3/mirrorlogs/webfrbr/redo04_m2.log
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    Linux x86-64 Oracle Linux 5
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    SEQ 382687 -- Incarnation number of the slot
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    UNDOBLOCKSDONE 0 -- Number of undo blocks completed on the transaction
    UNDOBLOCKSTOTAL 2079151 -- Total number of undo blocks that need recovery
    PID 15 -- ID of the current server it has been assigned to
    CPUTIME 1153 -- Time for which recovery has progressed (in seconds)
    PARENTUSN 0 -- Undo segment number of the parent transaction in PDML
    PARENTSLT 0 -- Slot of the parent transaction in PDML
    PARENTSEQ 0 -- Sequence number of the parent transaction in PDML
    XID 07002F00DFD60500 -- Transaction ID
    PXID 0000000000000000 -- Parent transaction ID
    RCVSERVERS 1 -- Number of servers used in the last recovery
    select * from x$ktuxe where ktuxecfl = 'DEAD';
    ADDR 00002B3E808B9BD8
    INDX 145
    INST_ID 1
    KTUXEUSN 7
    KTUXESLT 47
    KTUXESQN 382687
    KTUXERDBF 2
    KTUXERDBB 2080076
    KTUXESCNB 424110769
    KTUXESCNW 0
    KTUXESTA ACTIVE
    KTUXECFL DEAD
    KTUXEUEL 3739
    KTUXEDDBF 0
    KTUXEDDBB 0
    KTUXEPUSN 0
    KTUXEPSLT 0
    KTUXEPSQN 0
    KTUXESIZ 2079151
    select * from v$fast_start_servers;
    RECOVERING 0 15 07002F00DFD60500
    IDLE 0 16 0000000000000000
    IDLE 0 17 0000000000000000
    IDLE 0 18 0000000000000000
    IDLE 0 19 0000000000000000
    IDLE 0 20 0000000000000000
    IDLE 0 21 0000000000000000
    IDLE 0 22 0000000000000000
    IDLE 0 25 0000000000000000
    IDLE 0 26 0000000000000000
    IDLE 0 27 0000000000000000
    IDLE 0 28 0000000000000000
    IDLE 0 29 0000000000000000
    IDLE 0 30 0000000000000000
    IDLE 0 31 0000000000000000
    IDLE 0 32 0000000000000000
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    Thank you in advance
    Edited by: albrotar on Apr 17, 2013 1:48 AM
    Edited by: albrotar on Apr 17, 2013 1:49 AM
    Edited by: albrotar on Apr 17, 2013 1:51 AM
    Edited by: albrotar on Apr 17, 2013 1:52 AM
    Edited by: albrotar on Apr 17, 2013 1:54 AM

    I've found some errors in alert log file occurred at shutting down the database:
    +...+
    Control autobackup written to DISK device
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    Sun Apr 14 16:11:42 2013
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    Thread 1 advanced to log sequence 5107
    Current log# 4 seq# 5107 mem# 0: /ora2/origlogs/webfrbr/redo04_m1.log
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    Sun Apr 14 19:00:29 2013
    Stopping background process QMNC
    Sun Apr 14 19:00:31 2013
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    Sun Apr 14 19:00:32 2013
    Stopping background process MMON
    Sun Apr 14 19:00:34 2013
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    License high water mark = 31
    Sun Apr 14 19:00:34 2013
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    Sun Apr 14 19:00:34 2013
    Job queue slave processes stopped
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    Sun Apr 14 19:00:42 2013
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    Sun Apr 14 19:04:28 2013
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    Thread 1 advanced to log sequence 5118
    Current log# 6 seq# 5118 mem# 0: /ora2/origlogs/webfrbr/redo06_m1.log
    Current log# 6 seq# 5118 mem# 1: /ora3/mirrorlogs/webfrbr/redo06_m2.log
    Sun Apr 14 20:11:21 2013
    Errors in file /ora1/admin/webfrbr/bdump/webfrbr_smon_4629.trc:
    +ORA-07445: exception encountered: core dump [_intel_fast_memcpy.A()+10] [SIGSEGV] [Invalid permissions for mapped object] [0x2B6B66003000] [] []+*
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    Errors in file /ora1/admin/webfrbr/bdump/webfrbr_smon_4629.trc:
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    Sun Apr 14 20:11:22 2013
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    Sun Apr 14 20:11:48 2013
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  • Cannot drop tablespace

    I cannot drop the tablespace create earlier today by me. The tablespace have 2 files and they are empty. Here is the case.
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  • Cannot drop old undo tablespace. Cause: active rollback segment

    dear all.
    db: oracle 10.2.0.1
    os: rhel as version 5 64 bits.
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    _SYSSMU2$                      NEEDS RECOVERY
    _SYSSMU3$                      NEEDS RECOVERY
    _SYSSMU4$                      NEEDS RECOVERY
    _SYSSMU5$                      NEEDS RECOVERY
    _SYSSMU6$                      NEEDS RECOVERY
    _SYSSMU7$                      NEEDS RECOVERY
    _SYSSMU8$                      NEEDS RECOVERY
    _SYSSMU9$                      NEEDS RECOVERY
    _SYSSMU10$                     NEEDS RECOVERY
    _SYSSMU11$                     OFFLINE
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    thanks a lot.

    in step 4 did you try with shutdown abort?
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  • Cannot drop old undo tablespace.

    Hello friends ,
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    ERROR at line 1:
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    tablespace
    Please help
    Thanks

    Here's a blog post that may help you:
    http://davidalejomarcos.wordpress.com/2010/11/09/ora-01548-active-rollback-segment-syssmu1xxxx-found-terminate-dropping-tablespace-while-deleting-undotbs/

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    =================================================
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    =================================

  • Cannot drop or resıze datafile

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