SQL> show user

USER is ""

SQL> conn zlm/zlm@ora10g213

Connected.

SQL> !

--创建一个RMAN备份集

[oracle@bak ~]$ rman target /

Recovery Manager: Release 10.2.0.1.0 - Production on Fri Dec 26 16:44:00 2014

Copyright (c) 1982, 2005, Oracle.  All rights reserved.

connected to target database: ORA10G (DBID=4175411955)

RMAN> backup as compressed backupset database format '/u01/orabackup/backupsets/full_ora10g_%U' plus archive log format '/u01/orabackup/backupsets/arc_ora10g_%U' delete all input;

Starting backup at 26-DEC-14

current log archived

using target database control file instead of recovery catalog

allocated channel: ORA_DISK_1

channel ORA_DISK_1: sid=138 devtype=DISK

channel ORA_DISK_1: starting compressed archive log backupset

channel ORA_DISK_1: specifying archive log(s) in backup set

input archive log thread=1 sequence=30 recid=30 stamp=867343597

channel ORA_DISK_1: starting piece 1 at 26-DEC-14

channel ORA_DISK_1: finished piece 1 at 26-DEC-14

piece handle=/u01/orabackup/backupsets/arc_ora10g_13pr577g_1_1 tag=TAG20141226T164639 comment=NONE

channel ORA_DISK_1: backup set complete, elapsed time: 00:00:04

channel ORA_DISK_1: deleting archive log(s)

archive log filename=/oracle/flash_recovery_area/ORA10G/archivelog/2014_12_26/o1_mf_1_30_b9t83f1s_.arc recid=30 stamp=867343597

Finished backup at 26-DEC-14

Starting backup at 26-DEC-14

using channel ORA_DISK_1

channel ORA_DISK_1: starting compressed full datafile backupset

channel ORA_DISK_1: specifying datafile(s) in backupset

input datafile fno=00001 name=/data/oradata/ora10g/system01.dbf

input datafile fno=00003 name=/data/oradata/ora10g/sysaux01.dbf

input datafile fno=00002 name=/data/oradata/ora10g/undotbs01.dbf

input datafile fno=00005 name=/data/oradata/ora10g/example01.dbf

input datafile fno=00006 name=/data/oradata/ora10g/tspitr01.dbf

input datafile fno=00004 name=/data/oradata/ora10g/users01.dbf

channel ORA_DISK_1: starting piece 1 at 26-DEC-14

channel ORA_DISK_1: finished piece 1 at 26-DEC-14

piece handle=/u01/orabackup/backupsets/full_ora10g_14pr577l_1_1 tag=TAG20141226T164644 comment=NONE

channel ORA_DISK_1: backup set complete, elapsed time: 00:02:47

Finished backup at 26-DEC-14

Starting backup at 26-DEC-14

current log archived

using channel ORA_DISK_1

channel ORA_DISK_1: starting compressed archive log backupset

channel ORA_DISK_1: specifying archive log(s) in backup set

input archive log thread=1 sequence=31 recid=31 stamp=867343772

channel ORA_DISK_1: starting piece 1 at 26-DEC-14

channel ORA_DISK_1: finished piece 1 at 26-DEC-14

piece handle=/u01/orabackup/backupsets/arc_ora10g_15pr57ct_1_1 tag=TAG20141226T164933 comment=NONE

channel ORA_DISK_1: backup set complete, elapsed time: 00:00:01

channel ORA_DISK_1: deleting archive log(s)

archive log filename=/oracle/flash_recovery_area/ORA10G/archivelog/2014_12_26/o1_mf_1_31_b9t88wnv_.arc recid=31 stamp=867343772

Finished backup at 26-DEC-14

Starting Control File and SPFILE Autobackup at 26-DEC-14

piece handle=/u01/orabackup/backupsets/ora10g-c-4175411955-20141226-05.ctl comment=NONE

Finished Control File and SPFILE Autobackup at 26-DEC-14

RMAN> exit

Recovery Manager complete.

--连接到测试用户zlm查看当前日志

[oracle@bak ~]$ sqlplus /nolog

SQL*Plus: Release 10.2.0.1.0 - Production on Fri Dec 26 16:50:46 2014

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> conn zlm/zlm@ora10g213

Connected.

SQL> select sequence#,status from v$log;

SEQUENCE# STATUS

---------- ----------------

32 CURRENT

30 INACTIVE

31 ACTIVE

--创建测试表t1，并切换若干次日志

SQL> create table t1 as select * from dba_objects;

Table created.

SQL> alter system switch logfile;

System altered.

SQL> select sequence#,status from v$log;

SEQUENCE# STATUS

---------- ----------------

32 ACTIVE

33 CURRENT

31 ACTIVE

SQL> alter system switch logfile;

System altered.

SQL> select sequence#,status from v$log;

SEQUENCE# STATUS

---------- ----------------

32 ACTIVE

33 ACTIVE

34 CURRENT   --此时仍然时候数据的

SQL> select count(*) from t1;

COUNT(*)

----------

50382

--对表进行truancate操作，模拟误操作

SQL> truncate table t1;

Table truncated.

SQL> select count(*) from t1;

COUNT(*)

----------

0

SQL> alter system switch logfile;

System altered.

SQL> select sequence#,status from v$log;

SEQUENCE# STATUS

---------- ----------------

35 CURRENT --truncate之后又切换了一次日志，当前日志为35

33 ACTIVE

34 ACTIVE

SQL> !

创建表的时候，logseq是32，之后切换了一次日志，到33，此时的表中仍然是有数据的，但是truncate操作后表中的数据就没有了，这个动作基本就是在logseq 34的时候发生的，truncate完以后又切了日志，到了35，我们实验的目的就是要把表空间恢复到logseq=34这个时间点(Time In Point)。根据刚才说的那个例子，就是到故障点8点以前的某个数据未丢失的时间点(5点)

--创建一个auxiliary目录(必要步骤)

[oracle@bak ~]$ mkdir /u01/aux

[oracle@bak ~]$ rman target /

Recovery Manager: Release 10.2.0.1.0 - Production on Fri Dec 26 16:54:36 2014

Copyright (c) 1982, 2005, Oracle.  All rights reserved.

connected to target database: ORA10G (DBID=4175411955)

auxiliary目标目录中会在之后的RMAN脚本执行过程中，生成一些系统恢复需要的文件，等RMAN恢复完后会展示一下这个目录的结构。

--最关键的来了，用RMAN命令进行TSPITR恢复到故障点之前的某个时刻

RMAN> recover tablespace tspitr until logseq 33 auxiliary destination '/u01/aux';

Starting recover at 26-DEC-14

using target database control file instead of recovery catalog

allocated channel: ORA_DISK_1

channel ORA_DISK_1: sid=159 devtype=DISK

RMAN-05026: WARNING: presuming following set of tablespaces applies to specified point in time

List of tablespaces expected to have UNDO segments    --有undo段的表空间列表

tablespace SYSTEM

tablespace UNDOTBS1

Creating automatic instance, with SID='xvBc'   --创建一个自动化实例，随机SID为xvBc

initialization parameters used for automatic instance:    --为自动化实例分配的参数

db_name=ORA10G

compatible=10.2.0.1.0

db_block_size=8192

db_files=200

db_unique_name=tspitr_ORA10G_xvBc

large_pool_size=1M

shared_pool_size=110M

#No auxiliary parameter file used

db_create_file_dest=/u01/aux    --之前创建的auxiliary目录

control_files=/u01/aux/cntrl_tspitr_ORA10G_xvBc.f    --控制文件的位置

starting up automatic instance ORA10G--启动自动化实例

Oracle instance started

Total System Global Area     201326592 bytes

Fixed Size                     1218508 bytes

Variable Size                146802740 bytes

Database Buffers              50331648 bytes

Redo Buffers                   2973696 bytes

Automatic instance created

contents of Memory Script:  --第1个内存脚本内容

{

# set the until clause

set until  logseq 33 thread 1;    --指定的需要恢复到的logseq

# restore the controlfile

restore clone controlfile;

# mount the controlfile

sql clone 'alter database mount clone database';

# archive current online log for tspitr to a resent until time

sql 'alter system archive log current';

# avoid unnecessary autobackups for structural changes during TSPITR

sql 'begin dbms_backup_restore.AutoBackupFlag(FALSE); end;';

}

executing Memory Script

executing command: SET until clause

Starting restore at 26-DEC-14

allocated channel: ORA_AUX_DISK_1

channel ORA_AUX_DISK_1: sid=36 devtype=DISK

channel ORA_AUX_DISK_1: starting datafile backupset restore

channel ORA_AUX_DISK_1: restoring control file

channel ORA_AUX_DISK_1: reading from backup piece /u01/orabackup/backupsets/ora10g-c-4175411955-20141226-05.ctl

channel ORA_AUX_DISK_1: restored backup piece 1

piece handle=/u01/orabackup/backupsets/ora10g-c-4175411955-20141226-05.ctl tag=TAG20141226T164935

channel ORA_AUX_DISK_1: restore complete, elapsed time: 00:00:02

output filename=/u01/aux/cntrl_tspitr_ORA10G_xvBc.f

Finished restore at 26-DEC-14

sql statement: alter database mount clone database

sql statement: alter system archive log current

sql statement: begin dbms_backup_restore.AutoBackupFlag(FALSE); end;

released channel: ORA_DISK_1

released channel: ORA_AUX_DISK_1

contents of Memory Script:--第2个内存脚本内容

{

# generated tablespace point-in-time recovery script

# set the until clause

set until  logseq 33 thread 1;

plsql <<

declare

sqlstatement       varchar2(512);

offline_not_needed exception;

pragma exception_init(offline_not_needed, -01539);

begin

sqlstatement := 'alter tablespace '||  'TSPITR' ||' offline for recover';

krmicd.writeMsg(6162, sqlstatement);

krmicd.execSql(sqlstatement);

exception

when offline_not_needed then

null;

end; >>>;

# set an omf destination filename for restore

set newname for clone datafile  1 to new;

# set an omf destination filename for restore

set newname for clone datafile  2 to new;

# set an omf destination tempfile

set newname for clone tempfile  2 to new;

# set a destination filename for restore

set newname for datafile  6 to

"/data/oradata/ora10g/tspitr01.dbf";

# rename all tempfiles

switch clone tempfile all;

# restore the tablespaces in the recovery set plus the auxilliary tablespaces

restore clone datafile  1, 2, 6;

switch clone datafile all;

#online the datafiles restored or flipped

sql clone "alter database datafile  1 online";

#online the datafiles restored or flipped

sql clone "alter database datafile  2 online";

#online the datafiles restored or flipped

sql clone "alter database datafile  6 online";

# make the controlfile point at the restored datafiles, then recover them

recover clone database tablespace  "TSPITR", "SYSTEM", "UNDOTBS1" delete archivelog;

alter clone database open resetlogs;

# PLUG HERE the creation of a temporary tablespace if export fails due to lack

# of temporary space.

# For example in Unix these two lines would do that:

#sql clone "create tablespace aux_tspitr_tmp

#           datafile ''/tmp/aux_tspitr_tmp.dbf'' size 500K";

}

executing Memory Script

executing command: SET until clause

sql statement: alter tablespace TSPITR offline for recover

executing command: SET NEWNAME

executing command: SET NEWNAME

executing command: SET NEWNAME

executing command: SET NEWNAME

renamed temporary file 2 to /u01/aux/TSPITR_ORA10G_XVBC/datafile/o1_mf_temp_%u_.tmp in control file

Starting restore at 26-DEC-14

allocated channel: ORA_AUX_DISK_1

channel ORA_AUX_DISK_1: sid=39 devtype=DISK

channel ORA_AUX_DISK_1: starting datafile backupset restore

channel ORA_AUX_DISK_1: specifying datafile(s) to restore from backup set

restoring datafile 00001 to /u01/aux/TSPITR_ORA10G_XVBC/datafile/o1_mf_system_%u_.dbf

restoring datafile 00002 to /u01/aux/TSPITR_ORA10G_XVBC/datafile/o1_mf_undotbs1_%u_.dbf

restoring datafile 00006 to /data/oradata/ora10g/tspitr01.dbf

channel ORA_AUX_DISK_1: reading from backup piece /u01/orabackup/backupsets/full_ora10g_14pr577l_1_1

channel ORA_AUX_DISK_1: restored backup piece 1

piece handle=/u01/orabackup/backupsets/full_ora10g_14pr577l_1_1 tag=TAG20141226T164644

channel ORA_AUX_DISK_1: restore complete, elapsed time: 00:02:26

Finished restore at 26-DEC-14

datafile 1 switched to datafile copy

input datafile copy recid=4 stamp=867344300 filename=/u01/aux/TSPITR_ORA10G_XVBC/datafile/o1_mf_system_b9t8nvw3_.dbf

datafile 2 switched to datafile copy

input datafile copy recid=5 stamp=867344300 filename=/u01/aux/TSPITR_ORA10G_XVBC/datafile/o1_mf_undotbs1_b9t8nvx5_.dbf

sql statement: alter database datafile  1 online

sql statement: alter database datafile  2 online

sql statement: alter database datafile  6 online

Starting recover at 26-DEC-14

using channel ORA_AUX_DISK_1

starting media recovery

archive log thread 1 sequence 32 is already on disk as file /oracle/flash_recovery_area/ORA10G/archivelog/2014_12_26/o1_mf_1_32_b9t8dkr8_.arc

channel ORA_AUX_DISK_1: starting archive log restore to default destination

channel ORA_AUX_DISK_1: restoring archive log

archive log thread=1 sequence=31

channel ORA_AUX_DISK_1: reading from backup piece /u01/orabackup/backupsets/arc_ora10g_15pr57ct_1_1

channel ORA_AUX_DISK_1: restored backup piece 1

piece handle=/u01/orabackup/backupsets/arc_ora10g_15pr57ct_1_1 tag=TAG20141226T164933

channel ORA_AUX_DISK_1: restore complete, elapsed time: 00:00:03

archive log filename=/u01/app/oracle/product/10.2.0/db_1/dbs/arch1_31_860802036.dbf thread=1 sequence=31

channel clone_default: deleting archive log(s)

archive log filename=/u01/app/oracle/product/10.2.0/db_1/dbs/arch1_31_860802036.dbf recid=32 stamp=867344306

archive log filename=/oracle/flash_recovery_area/ORA10G/archivelog/2014_12_26/o1_mf_1_32_b9t8dkr8_.arc thread=1 sequence=32

media recovery complete, elapsed time: 00:00:05

Finished recover at 26-DEC-14

database opened

contents of Memory Script:    --第3个内存脚本(逻辑导入导出)

{

# export the tablespaces in the recovery set

host 'exp userid =\"/@\(DESCRIPTION=\(ADDRESS=\(PROTOCOL=beq\)\(PROGRAM=/u01/app/oracle/product/10.2.0/db_1/bin/oracle\)\(ARGV0=oraclexvBc\)\(ARGS=^'\(DESCRIPTION=\(LOCAL=YES\)\(ADDRESS=\(PROTOCOL=beq\)\)\)^'\)\(ENVS=^'ORACLE_SID=xvBc^'\)\)\(CONNECT_DATA=\(SID=xvBc\)\)\) as sysdba\" point_in_time_recover=y tablespaces=

TSPITR file=

tspitr_a.dmp';

# shutdown clone before import

shutdown clone immediate

# import the tablespaces in the recovery set

host 'imp userid =\"/@ as sysdba\" point_in_time_recover=y file=

tspitr_a.dmp';

# online/offline the tablespace imported

sql "alter tablespace  TSPITR online";

sql "alter tablespace  TSPITR offline";

# enable autobackups in case user does open resetlogs from RMAN after TSPITR

sql 'begin dbms_backup_restore.AutoBackupFlag(TRUE); end;';

}

executing Memory Script

Export: Release 10.2.0.1.0 - Production on Fri Dec 26 16:58:55 2014

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

Export done in US7ASCII character set and AL16UTF16 NCHAR character set

server uses ZHS16GBK character set (possible charset conversion)

Note: table data (rows) will not be exported

About to export Tablespace Point-in-time Recovery objects...    --执行导出TSPITR对象

For tablespace TSPITR ...

. exporting cluster definitions

. exporting table definitions

. . exporting table                              T

. . exporting table                             T1--导出误删除的测试表

. exporting referential integrity constraints

. exporting triggers

. end point-in-time recovery

Export terminated successfully without warnings.    --导出完成无报错

host command complete

database closed

database dismounted

Oracle instance shut down

Import: Release 10.2.0.1.0 - Production on Fri Dec 26 16:59:17 2014

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

Export file created by EXPORT:V10.02.01 via conventional path

About to import Tablespace Point-in-time Recovery objects...

import done in US7ASCII character set and AL16UTF16 NCHAR character set

import server uses ZHS16GBK character set (possible charset conversion)

. importing SYS's objects into SYS

. importing ZLM's objects into ZLM

. . importing table                            "T"

. . importing table                           "T1"--导入误删除的测试表

. importing SYS's objects into SYS

Import terminated successfully without warnings.

host command complete

sql statement: alter tablespace  TSPITR online

sql statement: alter tablespace  TSPITR offline    --最后一步操作是把要恢复的表空间offline的

sql statement: begin dbms_backup_restore.AutoBackupFlag(TRUE); end;

Removing automatic instance    --删除自动化实例以及相关文件

Automatic instance removed

auxiliary instance file /u01/aux/cntrl_tspitr_ORA10G_xvBc.f deleted

auxiliary instance file /u01/aux/TSPITR_ORA10G_XVBC/datafile/o1_mf_system_b9t8nvw3_.dbf deleted

auxiliary instance file /u01/aux/TSPITR_ORA10G_XVBC/datafile/o1_mf_undotbs1_b9t8nvx5_.dbf deleted

auxiliary instance file /u01/aux/TSPITR_ORA10G_XVBC/datafile/o1_mf_temp_b9t8t370_.tmp deleted

auxiliary instance file /u01/aux/TSPITR_ORA10G_XVBC/onlinelog/o1_mf_1_b9t8srrv_.log deleted

auxiliary instance file /u01/aux/TSPITR_ORA10G_XVBC/onlinelog/o1_mf_2_b9t8svp8_.log deleted

auxiliary instance file /u01/aux/TSPITR_ORA10G_XVBC/onlinelog/o1_mf_3_b9t8sy5v_.log deleted

Finished recover at 26-DEC-14