在12C中，利用RMAN可以恢复特定时间点的表或者表分区，在恢复过程中，RMAN会自动创建一个实例，然后通过调用数据泵进程导出导入实现。
之前做过pdb里面表的恢复，但是由于此过程需要创建一个新实例（RMAN自动创建），如果是PDB的话需要的空间太大（涉及到的表空间太多），导致恢复过程出错，后来直接在CDB级别做recovery table。具体如下：
1、创建测试用户和表，并初始化数据
[oracle@ora12c ~]$ sqlplus / as sysdba
SQL*Plus: Release 12.1.0.1.0 Production on Thu Jul 25 17:49:58 2013
Copyright (c) 1982, 2013, Oracle. All rights reserved.
Connected to an idle instance.
SQL> startup
ORACLE instance started.
Total System Global Area 417546240 bytes
Fixed Size 2289064 bytes
Variable Size 339739224 bytes
Database Buffers 71303168 bytes
Redo Buffers 4214784 bytes
Database mounted.
Database opened.
SQL>
SQL>
SQL> show user;
USER is "SYS"
SQL> create user c##testuser identified by oracle;
User created.
SQL> alter user c##testuser account unlock;
User altered.
SQL> grant dba to c##testuser;
Grant succeeded.
SQL> conn c##testuser/oracle
Connected.
SQL> show user;
USER is "c##testuser"
SQL> create table obj as select * from dba_objects;
Table created.
SQL> select count(*) from obj;
COUNT(*)
----------
90808
2、使用RMAN备份SYSTEM、SYSAUX、UNDOTBS1、users表空间
[oracle@ora12c ~]$ rman target sys/oracle
Recovery Manager: Release 12.1.0.1.0 - Production on Thu Jul 25 17:55:53 2013
Copyright (c) 1982, 2013, Oracle and/or its affiliates. All rights reserved.
connected to target database: ORCL12C (DBID=649692732)
RMAN> select ts#,name from v$tablespace;
using target database control file instead of recovery catalog
TS# NAME
---------- ------------------------------
0 SYSTEM
1 SYSAUX
2 UNDOTBS1
4 USERS
3 TEMP
0 SYSTEM
1 SYSAUX
2 TEMP
0 SYSTEM
1 SYSAUX
2 TEMP
3 USERS
4 EXAMPLE
13 rows selected
RMAN> backup tablespace SYSTEM;
Starting backup at 25-JUL-13
allocated channel: ORA_DISK_1
channel ORA_DISK_1: SID=47 device type=DISK
channel ORA_DISK_1: starting full datafile backup set
channel ORA_DISK_1: specifying datafile(s) in backup set
input datafile file number=00001 name=/oracle/12c/oradata/orcl12c/system01.dbf
channel ORA_DISK_1: starting piece 1 at 25-JUL-13
channel ORA_DISK_1: finished piece 1 at 25-JUL-13
piece handle=/oracle/12c/fast_recovery_area/ORCL12C/backupset/2013_07_25/o1_mf_nnndf_TAG20130725T175701_8z1xmflf_.bkp tag=TAG20130725T175701 comment=NONE
channel ORA_DISK_1: backup set complete, elapsed time: 00:01:05
Finished backup at 25-JUL-13
Starting Control File and SPFILE Autobackup at 25-JUL-13
piece handle=/oracle/12c/fast_recovery_area/ORCL12C/autobackup/2013_07_25/o1_mf_s_821728687_8z1xokfh_.bkp comment=NONE
Finished Control File and SPFILE Autobackup at 25-JUL-13
RMAN> backup tablespace SYSAUX;
Starting backup at 25-JUL-13
using channel ORA_DISK_1
channel ORA_DISK_1: starting full datafile backup set
channel ORA_DISK_1: specifying datafile(s) in backup set
input datafile file number=00003 name=/oracle/12c/oradata/orcl12c/sysaux01.dbf
channel ORA_DISK_1: starting piece 1 at 25-JUL-13
channel ORA_DISK_1: finished piece 1 at 25-JUL-13
piece handle=/oracle/12c/fast_recovery_area/ORCL12C/backupset/2013_07_25/o1_mf_nnndf_TAG20130725T175827_8z1xp3fj_.bkp tag=TAG20130725T175827 comment=NONE
channel ORA_DISK_1: backup set complete, elapsed time: 00:00:55
Finished backup at 25-JUL-13
Starting Control File and SPFILE Autobackup at 25-JUL-13
piece handle=/oracle/12c/fast_recovery_area/ORCL12C/autobackup/2013_07_25/o1_mf_s_821728762_8z1xqwgs_.bkp comment=NONE
Finished Control File and SPFILE Autobackup at 25-JUL-13
RMAN> backup tablespace UNDOTBS1;
Starting backup at 25-JUL-13
using channel ORA_DISK_1
channel ORA_DISK_1: starting full datafile backup set
channel ORA_DISK_1: specifying datafile(s) in backup set
input datafile file number=00004 name=/oracle/12c/oradata/orcl12c/undotbs01.dbf
channel ORA_DISK_1: starting piece 1 at 25-JUL-13
channel ORA_DISK_1: finished piece 1 at 25-JUL-13
piece handle=/oracle/12c/fast_recovery_area/ORCL12C/backupset/2013_07_25/o1_mf_nnndf_TAG20130725T175948_8z1xrnfl_.bkp tag=TAG20130725T175948 comment=NONE
channel ORA_DISK_1: backup set complete, elapsed time: 00:00:03
Finished backup at 25-JUL-13
Starting Control File and SPFILE Autobackup at 25-JUL-13
piece handle=/oracle/12c/fast_recovery_area/ORCL12C/autobackup/2013_07_25/o1_mf_s_821728791_8z1xrsdz_.bkp comment=NONE
Finished Control File and SPFILE Autobackup at 25-JUL-13
RMAN> backup tablespace users;
Starting backup at 25-JUL-13
using channel ORA_DISK_1
channel ORA_DISK_1: starting full datafile backup set
channel ORA_DISK_1: specifying datafile(s) in backup set
input datafile file number=00006 name=/oracle/12c/oradata/orcl12c/users01.dbf
channel ORA_DISK_1: starting piece 1 at 25-JUL-13
channel ORA_DISK_1: finished piece 1 at 25-JUL-13
piece handle=/oracle/12c/fast_recovery_area/ORCL12C/backupset/2013_07_25/o1_mf_nnndf_TAG20130725T180013_8z1xsg2q_.bkp tag=TAG20130725T180013 comment=NONE
channel ORA_DISK_1: backup set complete, elapsed time: 00:00:03
Finished backup at 25-JUL-13
Starting Control File and SPFILE Autobackup at 25-JUL-13
piece handle=/oracle/12c/fast_recovery_area/ORCL12C/autobackup/2013_07_25/o1_mf_s_821728817_8z1xsllx_.bkp comment=NONE
Finished Control File and SPFILE Autobackup at 25-JUL-13
RMAN> exit
Recovery Manager complete.
3、drop测试表，并记下drop之前的SCN号
[oracle@ora12c ~]$ sqlplus / as sysdba
SQL*Plus: Release 12.1.0.1.0 Production on Thu Jul 25 18:00:42 2013
Copyright (c) 1982, 2013, Oracle. All rights reserved.
Connected to:
Oracle Database 12c Enterprise Edition Release 12.1.0.1.0 - 64bit Production
With the Partitioning, OLAP, Advanced Analytics and Real Application Testing options
SQL> conn c##testuser/oracle
Connected.
SQL> select count(*) from obj;
COUNT(*)
----------
90808
SQL> select current_scn from v$database;
CURRENT_SCN
-----------
2076314
SQL> /
CURRENT_SCN
-----------
2076316
SQL> drop table obj;
Table dropped.
SQL> purge recyclebin;
Recyclebin purged.
4、使用RMAN RECOVER TABLE，目录在/tmp下，表重命名为n_obj
[oracle@ora12c ~]$ rman target sys/oracle
Recovery Manager: Release 12.1.0.1.0 - Production on Thu Jul 25 18:02:12 2013
Copyright (c) 1982, 2013, Oracle and/or its affiliates. All rights reserved.
connected to target database: ORCL12C (DBID=649692732)
RMAN> RECOVER TABLE 'c##testuser'.'OBJ' UNTIL SCN 2076316 AUXILIARY DESTINATION '/tmp' REMAP TABLE 'c##testuser'.'OBJ':'N_OBJ';
Starting recover at 25-JUL-13
allocated channel: ORA_DISK_1
channel ORA_DISK_1: SID=1 device type=DISK
RMAN-05026: WARNING: presuming following set of tablespaces applies to specified Point-in-Time
List of tablespaces expected to have UNDO segments
Tablespace SYSTEM
Tablespace UNDOTBS1
Creating automatic instance, with SID='Coao'
initialization parameters used for automatic instance:
db_name=ORCL12C
db_unique_name=Coao_pitr_ORCL12C
compatible=12.1.0.0.0
db_block_size=8192
db_files=200
sga_target=1G
processes=80
diagnostic_dest=/oracle/12c
db_create_file_dest=/tmp
log_archive_dest_1='location=/tmp'
enable_pluggable_database=true
_clone_one_pdb_recovery=true
#No auxiliary parameter file used
starting up automatic instance ORCL12C
Oracle instance started
Total System Global Area 1068937216 bytes
Fixed Size 2296576 bytes
Variable Size 281019648 bytes
Database Buffers 780140544 bytes
Redo Buffers 5480448 bytes
Automatic instance created
contents of Memory Script:
{
# set requested point in time
set until scn 2076316;
# restore the controlfile
restore clone controlfile;
# mount the controlfile
sql clone 'alter database mount clone database';
# archive current online log
sql 'alter system archive log current';
}
executing Memory Script
executing command: SET until clause
Starting restore at 25-JUL-13
allocated channel: ORA_AUX_DISK_1
channel ORA_AUX_DISK_1: SID=7 device type=DISK
channel ORA_AUX_DISK_1: starting datafile backup set restore
channel ORA_AUX_DISK_1: restoring control file
channel ORA_AUX_DISK_1: reading from backup piece /oracle/12c/fast_recovery_area/ORCL12C/autobackup/2013_07_25/o1_mf_s_821728817_8z1xsllx_.bkp
channel ORA_AUX_DISK_1: piece handle=/oracle/12c/fast_recovery_area/ORCL12C/autobackup/2013_07_25/o1_mf_s_821728817_8z1xsllx_.bkp tag=TAG20130725T180017
channel ORA_AUX_DISK_1: restored backup piece 1
channel ORA_AUX_DISK_1: restore complete, elapsed time: 00:00:08
output file name=/tmp/ORCL12C/controlfile/o1_mf_8z1ypm05_.ctl
Finished restore at 25-JUL-13
sql statement: alter database mount clone database
sql statement: alter system archive log current
contents of Memory Script:
{
# set requested point in time
set until scn 2076316;
# set destinations for recovery set and auxiliary set datafiles
set newname for clone datafile 1 to new;
set newname for clone datafile 4 to new;
set newname for clone datafile 3 to new;
set newname for clone tempfile 1 to new;
# switch all tempfiles
switch clone tempfile all;
# restore the tablespaces in the recovery set and the auxiliary set
restore clone datafile 1, 4, 3;
switch clone datafile all;
}
executing Memory Script
executing command: SET until clause
executing command: SET NEWNAME
executing command: SET NEWNAME
executing command: SET NEWNAME
executing command: SET NEWNAME
renamed tempfile 1 to /tmp/ORCL12C/datafile/o1_mf_temp_%u_.tmp in control file
Starting restore at 25-JUL-13
using channel ORA_AUX_DISK_1
channel ORA_AUX_DISK_1: starting datafile backup set restore
channel ORA_AUX_DISK_1: specifying datafile(s) to restore from backup set
channel ORA_AUX_DISK_1: restoring datafile 00001 to /tmp/ORCL12C/datafile/o1_mf_system_%u_.dbf
channel ORA_AUX_DISK_1: reading from backup piece /oracle/12c/fast_recovery_area/ORCL12C/backupset/2013_07_25/o1_mf_nnndf_TAG20130725T175701_8z1xmflf_.bkp
channel ORA_AUX_DISK_1: piece handle=/oracle/12c/fast_recovery_area/ORCL12C/backupset/2013_07_25/o1_mf_nnndf_TAG20130725T175701_8z1xmflf_.bkp tag=TAG20130725T175701
channel ORA_AUX_DISK_1: restored backup piece 1
channel ORA_AUX_DISK_1: restore complete, elapsed time: 00:01:55
channel ORA_AUX_DISK_1: starting datafile backup set restore
channel ORA_AUX_DISK_1: specifying datafile(s) to restore from backup set
channel ORA_AUX_DISK_1: restoring datafile 00003 to /tmp/ORCL12C/datafile/o1_mf_sysaux_%u_.dbf
channel ORA_AUX_DISK_1: reading from backup piece /oracle/12c/fast_recovery_area/ORCL12C/backupset/2013_07_25/o1_mf_nnndf_TAG20130725T175827_8z1xp3fj_.bkp
channel ORA_AUX_DISK_1: piece handle=/oracle/12c/fast_recovery_area/ORCL12C/backupset/2013_07_25/o1_mf_nnndf_TAG20130725T175827_8z1xp3fj_.bkp tag=TAG20130725T175827
channel ORA_AUX_DISK_1: restored backup piece 1
channel ORA_AUX_DISK_1: restore complete, elapsed time: 00:01:25
channel ORA_AUX_DISK_1: starting datafile backup set restore
channel ORA_AUX_DISK_1: specifying datafile(s) to restore from backup set
channel ORA_AUX_DISK_1: restoring datafile 00004 to /tmp/ORCL12C/datafile/o1_mf_undotbs1_%u_.dbf
channel ORA_AUX_DISK_1: reading from backup piece /oracle/12c/fast_recovery_area/ORCL12C/backupset/2013_07_25/o1_mf_nnndf_TAG20130725T175948_8z1xrnfl_.bkp
channel ORA_AUX_DISK_1: piece handle=/oracle/12c/fast_recovery_area/ORCL12C/backupset/2013_07_25/o1_mf_nnndf_TAG20130725T175948_8z1xrnfl_.bkp tag=TAG20130725T175948
channel ORA_AUX_DISK_1: restored backup piece 1
channel ORA_AUX_DISK_1: restore complete, elapsed time: 00:00:15
Finished restore at 25-JUL-13
datafile 1 switched to datafile copy
input datafile copy RECID=11 STAMP=821729991 file name=/tmp/ORCL12C/datafile/o1_mf_system_8z1yqg80_.dbf
datafile 4 switched to datafile copy
input datafile copy RECID=12 STAMP=821729991 file name=/tmp/ORCL12C/datafile/o1_mf_undotbs1_8z1yxpxn_.dbf
datafile 3 switched to datafile copy
input datafile copy RECID=13 STAMP=821729991 file name=/tmp/ORCL12C/datafile/o1_mf_sysaux_8z1yv1m3_.dbf
contents of Memory Script:
{
# set requested point in time
set until scn 2076316;
# online the datafiles restored or switched
sql clone "alter database datafile 1 online";
sql clone "alter database datafile 4 online";
sql clone "alter database datafile 3 online";
# recover and open database read only
recover clone database tablespace "SYSTEM", "UNDOTBS1", "SYSAUX";
sql clone 'alter database open read only';
}
executing Memory Script
executing command: SET until clause
sql statement: alter database datafile 1 online
sql statement: alter database datafile 4 online
sql statement: alter database datafile 3 online
Starting recover at 25-JUL-13
using channel ORA_AUX_DISK_1
starting media recovery
archived log for thread 1 with sequence 32 is already on disk as file /oracle/12c/fast_recovery_area/ORCL12C/archivelog/2013_07_25/o1_mf_1_32_8z1ygxf8_.arc
archived log file name=/oracle/12c/fast_recovery_area/ORCL12C/archivelog/2013_07_25/o1_mf_1_32_8z1ygxf8_.arc thread=1 sequence=32
media recovery complete, elapsed time: 00:00:01
Finished recover at 25-JUL-13
sql statement: alter database open read only
contents of Memory Script:
{
sql clone "create spfile from memory";
shutdown clone immediate;
startup clone nomount;
sql clone "alter system set control_files =
''/tmp/ORCL12C/controlfile/o1_mf_8z1ypm05_.ctl'' comment=
''RMAN set'' scope=spfile";
shutdown clone immediate;
startup clone nomount;
# mount database
sql clone 'alter database mount clone database';
}
executing Memory Script
sql statement: create spfile from memory
database closed
database dismounted
Oracle instance shut down
connected to auxiliary database (not started)
Oracle instance started
Total System Global Area 1068937216 bytes
Fixed Size 2296576 bytes
Variable Size 285213952 bytes
Database Buffers 775946240 bytes
Redo Buffers 5480448 bytes
sql statement: alter system set control_files = ''/tmp/ORCL12C/controlfile/o1_mf_8z1ypm05_.ctl'' comment= ''RMAN set'' scope=spfile
Oracle instance shut down
connected to auxiliary database (not started)
Oracle instance started
Total System Global Area 1068937216 bytes
Fixed Size 2296576 bytes
Variable Size 285213952 bytes
Database Buffers 775946240 bytes
Redo Buffers 5480448 bytes
sql statement: alter database mount clone database
contents of Memory Script:
{
# set requested point in time
set until scn 2076316;
# set destinations for recovery set and auxiliary set datafiles
set newname for datafile 6 to new;
# restore the tablespaces in the recovery set and the auxiliary set
restore clone datafile 6;
switch clone datafile all;
}
executing Memory Script
executing command: SET until clause
executing command: SET NEWNAME
Starting restore at 25-JUL-13
allocated channel: ORA_AUX_DISK_1
channel ORA_AUX_DISK_1: SID=7 device type=DISK
channel ORA_AUX_DISK_1: starting datafile backup set restore
channel ORA_AUX_DISK_1: specifying datafile(s) to restore from backup set
channel ORA_AUX_DISK_1: restoring datafile 00006 to /tmp/COAO_PITR_ORCL12C/datafile/o1_mf_users_%u_.dbf
channel ORA_AUX_DISK_1: reading from backup piece /oracle/12c/fast_recovery_area/ORCL12C/backupset/2013_07_25/o1_mf_nnndf_TAG20130725T180013_8z1xsg2q_.bkp
channel ORA_AUX_DISK_1: piece handle=/oracle/12c/fast_recovery_area/ORCL12C/backupset/2013_07_25/o1_mf_nnndf_TAG20130725T180013_8z1xsg2q_.bkp tag=TAG20130725T180013
channel ORA_AUX_DISK_1: restored backup piece 1
channel ORA_AUX_DISK_1: restore complete, elapsed time: 00:00:07
Finished restore at 25-JUL-13
datafile 6 switched to datafile copy
input datafile copy RECID=15 STAMP=821730375 file name=/tmp/COAO_PITR_ORCL12C/datafile/o1_mf_users_8z1zb02t_.dbf
contents of Memory Script:
{
# set requested point in time
set until scn 2076316;
# online the datafiles restored or switched
sql clone "alter database datafile 6 online";
# recover and open resetlogs
recover clone database tablespace "USERS", "SYSTEM", "UNDOTBS1", "SYSAUX" delete archivelog;
alter clone database open resetlogs;
}
executing Memory Script
executing command: SET until clause
sql statement: alter database datafile 6 online
Starting recover at 25-JUL-13
using channel ORA_AUX_DISK_1
starting media recovery
archived log for thread 1 with sequence 32 is already on disk as file /oracle/12c/fast_recovery_area/ORCL12C/archivelog/2013_07_25/o1_mf_1_32_8z1ygxf8_.arc
archived log file name=/oracle/12c/fast_recovery_area/ORCL12C/archivelog/2013_07_25/o1_mf_1_32_8z1ygxf8_.arc thread=1 sequence=32
media recovery complete, elapsed time: 00:00:02
Finished recover at 25-JUL-13
database opened
contents of Memory Script:
{
# create directory for datapump import
sql "create or replace directory TSPITR_DIROBJ_DPDIR as ''
/tmp''";
# create directory for datapump export
sql clone "create or replace directory TSPITR_DIROBJ_DPDIR as ''
/tmp''";
}
executing Memory Script
sql statement: create or replace directory TSPITR_DIROBJ_DPDIR as ''/tmp''
sql statement: create or replace directory TSPITR_DIROBJ_DPDIR as ''/tmp''
Performing export of tables...
EXPDP>
WARNING: Oracle Data Pump operations are not typically needed when connected to the root or seed of a container database.
EXPDP> Starting "SYS"."TSPITR_EXP_Coao_DovB":
EXPDP> Estimate in progress using BLOCKS method...
EXPDP> Processing object type TABLE_EXPORT/TABLE/TABLE_DATA
EXPDP> Total estimation using BLOCKS method: 13 MB
EXPDP> Processing object type TABLE_EXPORT/TABLE/TABLE
EXPDP> Processing object type TABLE_EXPORT/TABLE/STATISTICS/TABLE_STATISTICS
EXPDP> Processing object type TABLE_EXPORT/TABLE/STATISTICS/MARKER
EXPDP> . . exported "c##testuser"."OBJ" 10.35 MB 90808 rows
EXPDP> Master table "SYS"."TSPITR_EXP_Coao_DovB" successfully loaded/unloaded
EXPDP> ******************************************************************************
EXPDP> Dump file set for SYS.TSPITR_EXP_Coao_DovB is:
EXPDP> /tmp/tspitr_Coao_66262.dmp
EXPDP> Job "SYS"."TSPITR_EXP_Coao_DovB" successfully completed at Thu Jul 25 18:29:45 2013 elapsed 0 00:01:29
Export completed
contents of Memory Script:
{
# shutdown clone before import
shutdown clone abort
}
executing Memory Script
Oracle instance shut down
Performing import of tables...
IMPDP>
WARNING: Oracle Data Pump operations are not typically needed when connected to the root or seed of a container database.
IMPDP> Master table "SYS"."TSPITR_IMP_Coao_Awud" successfully loaded/unloaded
IMPDP> Starting "SYS"."TSPITR_IMP_Coao_Awud":
IMPDP> Processing object type TABLE_EXPORT/TABLE/TABLE
IMPDP> Processing object type TABLE_EXPORT/TABLE/TABLE_DATA
IMPDP> . . imported "c##testuser"."N_OBJ" 10.35 MB 90808 rows
IMPDP> Processing object type TABLE_EXPORT/TABLE/STATISTICS/TABLE_STATISTICS
IMPDP> Processing object type TABLE_EXPORT/TABLE/STATISTICS/MARKER
IMPDP> Job "SYS"."TSPITR_IMP_Coao_Awud" successfully completed at Thu Jul 25 18:31:48 2013 elapsed 0 00:01:12
Import completed
Removing automatic instance
Automatic instance removed
auxiliary instance file /tmp/ORCL12C/datafile/o1_mf_temp_8z1yynz1_.tmp deleted
auxiliary instance file /tmp/COAO_PITR_ORCL12C/onlinelog/o1_mf_3_8z1zbwgz_.log deleted
auxiliary instance file /tmp/COAO_PITR_ORCL12C/onlinelog/o1_mf_2_8z1zbqkq_.log deleted
auxiliary instance file /tmp/COAO_PITR_ORCL12C/onlinelog/o1_mf_1_8z1zbjst_.log deleted
auxiliary instance file /tmp/COAO_PITR_ORCL12C/datafile/o1_mf_users_8z1zb02t_.dbf deleted
auxiliary instance file /tmp/ORCL12C/datafile/o1_mf_sysaux_8z1yv1m3_.dbf deleted
auxiliary instance file /tmp/ORCL12C/datafile/o1_mf_undotbs1_8z1yxpxn_.dbf deleted
auxiliary instance file /tmp/ORCL12C/datafile/o1_mf_system_8z1yqg80_.dbf deleted
auxiliary instance file /tmp/ORCL12C/controlfile/o1_mf_8z1ypm05_.ctl deleted
auxiliary instance file tspitr_Coao_66262.dmp deleted
Finished recover at 25-JUL-13
5、恢复成功后简单测试
RMAN> select count(*) from c##testuser.obj;
RMAN-00571: ===========================================================
RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS ===============
RMAN-00571: ===========================================================
RMAN-03002: failure of sql statement command at 07/25/2013 18:33:36
ORA-00942: table or view does not exist
RMAN> select count(*) from c##testuser.n_obj;
COUNT(*)
----------
90808
下面是官方文档中基于SCN恢复表分区和基于时间恢复表的示例：
RECOVER TABLE SH.SALES:SALES_2009, SH.SALES:SALES_2010 UNTIL SCN 34582 AUXILIARY DESTINATION '/tmp/oracle/recover' REMAP TABLE 'SH'.'SALES':'SALES_2009':'HISTORIC_SALES_2009', 'SH'.'SALES':'SALES_2010':'HISTORIC_SALES_2010'; RECOVER TABLE SCOTT.EMP, SCOTT.DEPT UNTIL TIME "TO_CHAR('12/23/2010 12:00:00','mm/dd/yyyy hh24:mi:ss')" AUXILIARY DESTINATION '/tmp/oracle/recover' REMAP TABLESPACE 'EXAMPLE':'MY_TBS';
最后修改时间：2022-03-28 10:24:09
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