How to recover dropped table

Table is been dropped and i want o recover it.
Database is running in archive log mode and i had valid full database rman backup too.
flashback is disabled.
database version -10g
Please let me know the steps i can follow to recover the dropped table.

Hello,
If your RECYCLEBIN is activated you may Flashback Drop your Table.
So you may check your RECYCLEBIN by using the following query:
select object_name, original_name from user_recyclebin;If you can see your Table (original_name) so you may execute the statement below:
flashback table <table_name> to before drop;Else, you'll need a Backup or a dump to restore your Table.
For instance, by duplicating your database elsewhere and get back the Table by DataPump (expdp/impdp).
Hope this help.
Best regards,
Jean-Valentin
Edited by: Lubiez Jean-Valentin on Feb 3, 2010 10:13 PM

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Whenever you post provide your 4 digit Oracle version (result of SELECT * FROM V$VERSION).
>
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>
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>
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How to recover the data from a dropped table in production/archive mode

How to recover the data/change on a table that was dropped by accident.
The database is on archive mode.

Oracle Version. ? If 10g.
Try this Way
SQL> create table taj as select * from all_objects where rownum <= 100;
Table created.
SQL> drop table taj ;
Table dropped.
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ORIGINAL NAME    RECYCLEBIN NAME                OBJECT TYPE DROP TIME
TAJ              BIN$b3MmS7kYS9ClMvKm0bu8Vw==$0 TABLE        2006-09-10:16:02:58
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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>M.S.Taj

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If you have no backup your only option is to perform incomplete recovery (point-in-time recovery) to the time just before the drop, export the table and then restore the database (for example, from a cold backup taken just before the incomplete recovery,) and import the table. This obviously requires a full backup
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Table Truncated, Flashback is enabled ... How to recover.

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hi,
There are three options available:
1. Restore and recover the primary database to a point in time before the drop.
This is an extreme measure for one table as the entire database goes back in
time.
2. Restore and recover the tablespace to a point in time before the drop.
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3. Restore and recover a subset of the database as a DUMMY database to export
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To recover from a dropped or truncated table, a dummy database (copy of primary)
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tablespace(s) where the dropped/truncated table resides.
The simpliest method to create this 'dummy' database is to use the RMAN
duplicate command. See:Note 228257.1 RMAN Duplicate Database in Oracle9iNote 73912.1 RMAN Creating a Duplicate Database -- Oracle8i
The difference between the two versions is that Oracle9i duplicate command
allows for a 'SKIP TABLESPACE' option. Thus Oracle9i allows for a duplication
of a subset of the database.
In Oracle8i, you cannot 'skip' tablespaces when using duplicate, so you must
duplicate the entire database. If this is not a desired option, or you must
restore the original database and thus cannot use
the rman DUPLICATE.
NOTE: The remainder of this information is for users who cannot use the
DUPLICATE command in Oracle8i. I.e., you want to restore only a subset
of the Oracle8i database.
Requirements :
a) RMAN backup of the primary database should be available to the
host where it has to be restored on.
b) Use of an RMAN-catalog database
c) Auxiliary instance created and started in NOMOUNT
(See Note 180436.1 step I. Create the auxiliary initSID.ora.)
Create this from the init.ora of the primary database and:
!!!!! IMPORTANT !!!!!!!!
If using the same host as the primary, be VERY careful as you do not want to
restore on top of existing files being used by the primary (production database).
Doing so can corrupt and crash the production database!!!!!!
- be sure all paths for this AUX instance are different than primary.
- be sure CONTROL_FILES parameter has different location but more importantly DIFFERENT NAME.
- add LOCK_NAME_SPACE to any value other than the primary database name.
- change/add SERVICE_NAME=AUX1.
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of the script. This changes the location and/or name of the online
redo log files.
d) Set ORACLE_HOME and ORACLE_SID set to the auxiliary instance
e.q set ORACLE_SID=AUX1
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!!!!! IMPORTANT !!!!!!!!
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The restore and recovery is done by RMAN. Create a file
of the script below (e.q table_pitr.cmd) and execute the following
command :
$ rman cmdfile=table_pitr.cmd
NOTE: ORACLE_HOME and ORACLE_SID set to the auxiliary instance
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The RMAN-script :
connect catalog rman/rman@v920_nlsu31
connect target /
run
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set newname for datafile 4 to '/fs01/oradata/tspitr/tools01.dbf';
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recover database skip forever tablespace TEMP,INDX,USERS,OLTS_ATTRSTORE,
OLTS_CT_DN,OLTS_CT_CN, OLTS_CT_OBJCL,OLTS_CT_STORE,OLTS_DEFAULT,
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OLTS_IND_CT_OBJCL,OLTS_IND_CT_STORE,
P1TS_ATTRSTORE,P1TS_IND_STORE;
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sql "alter database rename file ''/fs01/oradata/primary/REDO02.LOG'' to ''/fs01/oradata/tspitr/REDO02.LOG''";
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release channel t1;
Explanation :
- Tape channel allocated, but could also be a disk channel, depending
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- SET UNTIL TIME
User specified time, just before the DROP/TRUNACTE table
- MOUNT CLONE DATABASE.
This forces all datafiles to be put OFFLINE. Just for safety reasons.
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prodution database.
- ALTER DATABASE RENAME FILE
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'resetlogs' is issued, Oracle will create online logs based on specification
in the controlfile. This command changes the location and/or name. If
this is being performed on the SAME server, not issuing a rename will
cause Oracle to reset the production online log files. This will corrupt
and crash the production database!!!!!!
- RESTORE TABLESPACE ...;
Restore the tablespaces which need to be recoverd.
This includes always the SYSTEM, rollback/undo tablespace and
the tablespace(s)where the dropped/truncated table resides.
The SYSTEM tablespace is always included as it containts most / all of
the objects owned by SYS and SYSTEM. Some other tablespaces might be
included as well when they contain objects owned by SYS and SYSTEM.
SQL> select distinct tablespace_name
from dba_segments where owner in ('SYS', 'SYSTEM');
- SWITCH DATAFILE ALL;
Make the changes in the pathname (set by SET NEWNAME) active in the
controlfile.
- ALTER DATABASE DATAFILE ... ONLINE
Online the datafiles which are restored and have to be recovered.
- RECOVER DATABASE SKIP FOREVER TABLESPACE ......;
You need to specify the complete list of tablespaces which will not be
recovered. Else the recovery fails, that it cannot dentify/file the
tablespace datafile. The SKIP FOREVER clause causes RMAN to take the
datafiles offline using the DROP option. Only use skip forever when the
specified tablespaces will be dropped after opening the database. I.e.,
all tablespaces except the one which contains your data.
The recovery of RMAN, checks the datafileheaders, to get a starting point
for the recovery.
2: Open auxiliary database with RESETLOGS
$ sqlplus /
SQL> alter database open resetlogs;
This step should ALWAYS be executed outside RMAN via SQL*Plus. If the open
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catalog. Backups will fail with messages like:
RMAN-20011 "target database incarnation is not current in recovery catalog"
3: Export the table
The database is recovered and open, so it can be used by export.
Example:
$ exp userid=system/<password> file=table.dmp
tables=(<owner>.<tablename>, ...) rows=Y
4: Import the export-dump
Import the data of the dropped table back into the primary/production database.
Example:
$ imp userid=system/<password> file=table.dmp ignore=Y
5: Remove this AUX/DUMMY database
Shutdown and remove all files associated with this database. It has satisfied
your purpose. I.e., to give you an export of this table.

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How to Rollback a Dropped Table

Hi
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INSERT INTO sample_t1 VALUES(10,'XYZ','LKJ')
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Hi Visakhm
Thanks for your help on this.You have helped me get back the dropped table.
However, in case my colleague drops a table without issuing
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If you do not have transaction specified, you can not rollback the transaction.
If you have log backup in place, you may be able to restore the database backups. Refer the below link for the same: http://social.msdn.microsoft.com/Forums/en-US/16efd46d-eba9-4f9a-8683-f55caa3b4ffa/restore-differential-database-backup-with-on-daily-basis?forum=databasedesign
Top of all, Better option would be DO NOT give permission to drop the tables to your colleagues.

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