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Duplicate (Clone) Oracle Database to the Same Machine (同一机器数据库还原)(二)

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Duplicate (Clone) Oracle Database to the Same Machine (同一机器数据库还原)(一)

2. Backup-based Duplication

When an DB operation error occurred , and flashback technique can not be used, you can use this way do a database point in time recover on same db server, to clone a new db to recover, then drop.

This is very simple to perform:

Create a backup of the source DB (if you do not have one already):

[oracle@dbserver58 admin]$ env|grep ORA
ORACLE_SID=pora58
ORACLE_BASE=/oracle
ORACLE_HOME=/oracle/product/11.2.0/db_1

RMAN> backup database;

Starting backup at 11-NOV-14
using target database control file instead of recovery catalog
allocated channel: ORA_DISK_1
channel ORA_DISK_1: SID=1710 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=00002 name=/oradata/pora58/sysaux01.dbf
input datafile file number=00004 name=/oradata/pora58/users01.dbf
input datafile file number=00001 name=/oradata/pora58/system01.dbf
input datafile file number=00003 name=/oradata/pora58/undotbs01.dbf
channel ORA_DISK_1: starting piece 1 at 11-NOV-14
channel ORA_DISK_1: finished piece 1 at 11-NOV-14
piece handle=/backup/fra/PORA58/backupset/2014_11_11/o1_mf_nnndf_TAG20141111T150900_b63fjdfl_.bkp tag=TAG20141111T150900 comment=NONE
channel ORA_DISK_1: backup set complete, elapsed time: 00:00:25
channel ORA_DISK_1: starting full datafile backup set
channel ORA_DISK_1: specifying datafile(s) in backup set
including current control file in backup set
including current SPFILE in backup set
channel ORA_DISK_1: starting piece 1 at 11-NOV-14
channel ORA_DISK_1: finished piece 1 at 11-NOV-14
piece handle=/backup/fra/PORA58/backupset/2014_11_11/o1_mf_ncsnf_TAG20141111T150900_b63fk6l6_.bkp tag=TAG20141111T150900 comment=NONE
channel ORA_DISK_1: backup set complete, elapsed time: 00:00:01
Finished backup at 11-NOV-14

$ sqlplus / as sysdba

SQL*Plus: Release 11.2.0.4.0 Production on Tue Nov 11 15:09:35 2014

Copyright (c) 1982, 2013, Oracle.  All rights reserved.


Connected to:
Oracle Database 11g Enterprise Edition Release 11.2.0.4.0 - 64bit Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options


USERNAME             INST_NAME            HOST_NAME                 SID   SERIAL#  VERSION    STARTED  SPID            
-------------------- -------------------- ------------------------- ----- -------- ---------- -------- --------------- 
SYS                  pora58               dbserver58                1426  1335     11.2.0.4.0 20141111 25025           

SQL> select dbms_flashback.GET_SYSTEM_CHANGE_NUMBER from dual;

GET_SYSTEM_CHANGE_NUMBER
------------------------
                 4840862

SQL> create table system.test as select * from dba_objects;

Table created.

SQL> select dbms_flashback.GET_SYSTEM_CHANGE_NUMBER from dual;
GET_SYSTEM_CHANGE_NUMBER
------------------------
                 4840986

SQL> update system.test set object_name='truncated';
87491 rows updated.

Note:
We think this operation is wrong


SQL> commit;
Commit complete.

SQL> select dbms_flashback.GET_SYSTEM_CHANGE_NUMBER from dual;
GET_SYSTEM_CHANGE_NUMBER
------------------------
                 4841040

Auxiliary db TNSNAME,LISTENER,PASSWORD, AUDIT FILE PATH config and created ,here omit.

DB CLONE point in time recovery

[oracle@dbserver58 ~]$ export ORACLE_SID=new58

[oracle@dbserver58 dbs]$ env|grep ORA
ORACLE_SID=new58
ORACLE_BASE=/oracle
ORACLE_HOME=/oracle/product/11.2.0/db_1

[oracle@dbserver58 ~]$ rman target  sys/oracle@db1  auxiliary /

Recovery Manager: Release 11.2.0.4.0 - Production on Tue Nov 11 15:37:41 2014

Copyright (c) 1982, 2011, Oracle and/or its affiliates.  All rights reserved.

connected to target database: PORA58 (DBID=745023158)
connected to auxiliary database: DUMMY (not mounted)

RMAN> run{
2> allocate channel prmy1 type disk;
3>     allocate auxiliary channel stby type disk;
4>     duplicate target database TO new58  
5> UNTIL scn 4840986
6>     spfile
7>         parameter_value_convert 'pora58','new58'
8>         set db_unique_name='new58'
9>         set db_file_name_convert='/oradata/pora58/','/oradata/new58/'
10>         set log_file_name_convert='/oradata/pora58/','/oradata/new58/'
11>         set control_files='/oradata/new58/control01.ctl','/oradata/new58/control02.ctl'
12>         set log_archive_max_processes='5'
13> BACKUP LOCATION '/backup/fra/PORA58/backupset/2014_11_11'
14>  ;
15>      }

allocated channel: prmy1
channel prmy1: SID=571 device type=DISK

allocated channel: stby
channel stby: SID=396 device type=DISK

Starting Duplicate Db at 11-NOV-14
released channel: prmy1
released channel: stby
RMAN-00571: ===========================================================
RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS ===============
RMAN-00571: ===========================================================
RMAN-03002: failure of Duplicate Db command at 11/11/2014 15:39:14
RMAN-05501: aborting duplication of target database
RMAN-06457: UNTIL SCN (4840986) is ahead of last SCN in archived logs (4825354)


# target pora58

SQL> select thread#, status, enabled, checkpoint_time, checkpoint_change# from v$thread;

   THREAD# STATUS ENABLED  CHECKPOINT_TIME   CHECKPOINT_CHANGE#
---------- ------ -------- ----------------- ------------------
         1 OPEN   PUBLIC   20141111 10:00:31            4825354

SQL> alter system checkpoint;

System altered.

SQL> alter system archive log current;

System altered.

SQL> select thread#, status, enabled, checkpoint_time, checkpoint_change# from v$thread;

   THREAD# STATUS ENABLED  CHECKPOINT_TIME   CHECKPOINT_CHANGE#
---------- ------ -------- ----------------- ------------------
         1 OPEN   PUBLIC   20141111 15:40:46            4842411
[oracle@dbserver58 ~]$ cd $ORACLE_HOME/dbs
[oracle@dbserver58 dbs]$ ls
hc_new58.dat  hc_pora58.dat  init.ora  lkNEW58  lkPORA58  orapwnew58  orapwpora58  snapcf_pora58.f  spfilenew58.ora  spfilepora58.ora
[oracle@dbserver58 dbs]$ rm spfilenew58.ora 
[oracle@dbserver58 dbs]$ rman target  sys/oracle@db1  auxiliary /

Recovery Manager: Release 11.2.0.4.0 - Production on Tue Nov 11 15:45:06 2014

Copyright (c) 1982, 2011, Oracle and/or its affiliates.  All rights reserved.

connected to target database: PORA58 (DBID=745023158)
connected to auxiliary database (not started)

RMAN> run{
2> allocate channel prmy1 type disk;
3>     allocate auxiliary channel stby type disk;
4>     duplicate target database TO new58  
5> UNTIL scn 4840986
6>     spfile
7>         parameter_value_convert 'pora58','new58'
8>         set db_unique_name='new58'
9>         set db_file_name_convert='/oradata/pora58/','/oradata/new58/'
10>         set log_file_name_convert='/oradata/pora58/','/oradata/new58/'
11>         set control_files='/oradata/new58/control01.ctl','/oradata/new58/control02.ctl'
12>         set log_archive_max_processes='5'
13> BACKUP LOCATION '/backup/fra/PORA58/backupset/2014_11_11'
14>  ;
15>      }


[oracle@dbserver58 dbs]$ rman target /

Recovery Manager: Release 11.2.0.4.0 - Production on Tue Nov 11 15:45:35 2014

Copyright (c) 1982, 2011, Oracle and/or its affiliates.  All rights reserved.

connected to target database (not started)

RMAN> startup nomount force

startup failed: ORA-01078: failure in processing system parameters
LRM-00109: could not open parameter file '/oracle/product/11.2.0/db_1/dbs/initnew58.ora'

starting Oracle instance without parameter file for retrieval of spfile
Oracle instance started

Total System Global Area    1068937216 bytes

Fixed Size                     2260088 bytes
Variable Size                285213576 bytes
Database Buffers             775946240 bytes
Redo Buffers                   5517312 bytes

rman target  sys/oracle@db1  auxiliary /

run{
allocate channel prmy1 type disk;
    allocate auxiliary channel stby type disk;
    duplicate target database TO new58  
	UNTIL scn 4840986
    spfile
        parameter_value_convert 'pora58','new58'
        set db_unique_name='new58'
        set db_file_name_convert='/oradata/pora58/','/oradata/new58/'
        set log_file_name_convert='/oradata/pora58/','/oradata/new58/'
        set control_files='/oradata/new58/control01.ctl','/oradata/new58/control02.ctl'
        set log_archive_max_processes='5'
		BACKUP LOCATION '/backup/fra/PORA58/backupset/2014_11_11'
 ;
     }


[oracle@dbserver58 dbs]$ rman target  sys/oracle@db1  auxiliary /

Recovery Manager: Release 11.2.0.4.0 - Production on Tue Nov 11 15:45:48 2014

Copyright (c) 1982, 2011, Oracle and/or its affiliates.  All rights reserved.

connected to target database: PORA58 (DBID=745023158)
connected to auxiliary database: DUMMY (not mounted)

RMAN> run{
2> allocate channel prmy1 type disk;
3>     allocate auxiliary channel stby type disk;
4>     duplicate target database TO new58  
5> UNTIL scn 4840986
6>     spfile
7>         parameter_value_convert 'pora58','new58'
8>         set db_unique_name='new58'
9>         set db_file_name_convert='/oradata/pora58/','/oradata/new58/'
10>         set log_file_name_convert='/oradata/pora58/','/oradata/new58/'
11>         set control_files='/oradata/new58/control01.ctl','/oradata/new58/control02.ctl'
12>         set log_archive_max_processes='5'
13> BACKUP LOCATION '/backup/fra/PORA58/backupset/2014_11_11'
14>  ;
15>      }

using target database control file instead of recovery catalog
allocated channel: prmy1
channel prmy1: SID=1426 device type=DISK

allocated channel: stby
channel stby: SID=396 device type=DISK

Starting Duplicate Db at 11-NOV-14

contents of Memory Script:
{
   set until scn  4840986;
   restore clone spfile to  '/oracle/product/11.2.0/db_1/dbs/spfilenew58.ora';
   sql clone "alter system set spfile= ''/oracle/product/11.2.0/db_1/dbs/spfilenew58.ora''";
}
executing Memory Script

executing command: SET until clause

Starting restore at 11-NOV-14

WARNING: A restore time was estimated based on the supplied UNTIL SCN
channel stby: starting datafile backup set restore
channel stby: restoring SPFILE
output file name=/oracle/product/11.2.0/db_1/dbs/spfilenew58.ora
channel stby: reading from backup piece /backup/fra/PORA58/backupset/2014_11_11/o1_mf_ncsnf_TAG20141111T150900_b63fk6l6_.bkp
channel stby: piece handle=/backup/fra/PORA58/backupset/2014_11_11/o1_mf_ncsnf_TAG20141111T150900_b63fk6l6_.bkp tag=TAG20141111T150900
channel stby: restored backup piece 1
channel stby: restore complete, elapsed time: 00:00:01
Finished restore at 11-NOV-14

sql statement: alter system set spfile= ''/oracle/product/11.2.0/db_1/dbs/spfilenew58.ora''

contents of Memory Script:
{
   sql clone "alter system set  db_name = 
 ''NEW58'' comment=
 ''duplicate'' scope=spfile";
   sql clone "alter system set  audit_file_dest = 
 ''/oracle/admin/new58/adump'' comment=
 '''' scope=spfile";
   sql clone "alter system set  dispatchers = 
 ''(PROTOCOL=TCP) (SERVICE=new58XDB)'' comment=
 '''' scope=spfile";
   sql clone "alter system set  log_archive_format = 
 ''new58_%t_%s_%r.arc'' comment=
 '''' scope=spfile";
   sql clone "alter system set  db_unique_name = 
 ''new58'' comment=
 '''' scope=spfile";
   sql clone "alter system set  db_file_name_convert = 
 ''/oradata/pora58/'', ''/oradata/new58/'' comment=
 '''' scope=spfile";
   sql clone "alter system set  log_file_name_convert = 
 ''/oradata/pora58/'', ''/oradata/new58/'' comment=
 '''' scope=spfile";
   sql clone "alter system set  control_files = 
 ''/oradata/new58/control01.ctl'', ''/oradata/new58/control02.ctl'' comment=
 '''' scope=spfile";
   sql clone "alter system set  log_archive_max_processes = 
 5 comment=
 '''' scope=spfile";
   shutdown clone immediate;
   startup clone nomount;
}
executing Memory Script

sql statement: alter system set  db_name =  ''NEW58'' comment= ''duplicate'' scope=spfile

sql statement: alter system set  audit_file_dest =  ''/oracle/admin/new58/adump'' comment= '''' scope=spfile

sql statement: alter system set  dispatchers =  ''(PROTOCOL=TCP) (SERVICE=new58XDB)'' comment= '''' scope=spfile

sql statement: alter system set  log_archive_format =  ''new58_%t_%s_%r.arc'' comment= '''' scope=spfile

sql statement: alter system set  db_unique_name =  ''new58'' comment= '''' scope=spfile

sql statement: alter system set  db_file_name_convert =  ''/oradata/pora58/'', ''/oradata/new58/'' comment= '''' scope=spfile

sql statement: alter system set  log_file_name_convert =  ''/oradata/pora58/'', ''/oradata/new58/'' comment= '''' scope=spfile

sql statement: alter system set  control_files =  ''/oradata/new58/control01.ctl'', ''/oradata/new58/control02.ctl'' comment= '''' scope=spfile

sql statement: alter system set  log_archive_max_processes =  5 comment= '''' scope=spfile

Oracle instance shut down

connected to auxiliary database (not started)
Oracle instance started

Total System Global Area    6012973056 bytes

Fixed Size                     2264176 bytes
Variable Size               1711276944 bytes
Database Buffers            4294967296 bytes
Redo Buffers                   4464640 bytes
allocated channel: stby
channel stby: SID=1423 device type=DISK

contents of Memory Script:
{
   set until scn  4840986;
   sql clone "alter system set  db_name = 
 ''PORA58'' comment=
 ''Modified by RMAN duplicate'' scope=spfile";
   sql clone "alter system set  db_unique_name = 
 ''NEW58'' comment=
 ''Modified by RMAN duplicate'' scope=spfile";
   shutdown clone immediate;
   startup clone force nomount
   restore clone primary controlfile;
   alter clone database mount;
}
executing Memory Script

executing command: SET until clause

sql statement: alter system set  db_name =  ''PORA58'' comment= ''Modified by RMAN duplicate'' scope=spfile

sql statement: alter system set  db_unique_name =  ''NEW58'' comment= ''Modified by RMAN duplicate'' scope=spfile

Oracle instance shut down

Oracle instance started

Total System Global Area    6012973056 bytes

Fixed Size                     2264176 bytes
Variable Size               1711276944 bytes
Database Buffers            4294967296 bytes
Redo Buffers                   4464640 bytes
allocated channel: stby
channel stby: SID=1423 device type=DISK

Starting restore at 11-NOV-14

channel stby: starting datafile backup set restore
channel stby: restoring control file
channel stby: reading from backup piece /backup/fra/PORA58/backupset/2014_11_11/o1_mf_ncsnf_TAG20141111T150900_b63fk6l6_.bkp
channel stby: piece handle=/backup/fra/PORA58/backupset/2014_11_11/o1_mf_ncsnf_TAG20141111T150900_b63fk6l6_.bkp tag=TAG20141111T150900
channel stby: restored backup piece 1
channel stby: restore complete, elapsed time: 00:00:01
output file name=/oradata/new58/control01.ctl
output file name=/oradata/new58/control02.ctl
Finished restore at 11-NOV-14

database mounted

contents of Memory Script:
{
   set until scn  4840986;
   set newname for datafile  1 to 
 "/oradata/new58/system01.dbf";
   set newname for datafile  2 to 
 "/oradata/new58/sysaux01.dbf";
   set newname for datafile  3 to 
 "/oradata/new58/undotbs01.dbf";
   set newname for datafile  4 to 
 "/oradata/new58/users01.dbf";
   restore
   clone database
   ;
}
executing Memory Script

executing command: SET until clause

executing command: SET NEWNAME

executing command: SET NEWNAME

executing command: SET NEWNAME

executing command: SET NEWNAME

Starting restore at 11-NOV-14

channel stby: starting datafile backup set restore
channel stby: specifying datafile(s) to restore from backup set
channel stby: restoring datafile 00001 to /oradata/new58/system01.dbf
channel stby: restoring datafile 00002 to /oradata/new58/sysaux01.dbf
channel stby: restoring datafile 00003 to /oradata/new58/undotbs01.dbf
channel stby: restoring datafile 00004 to /oradata/new58/users01.dbf
channel stby: reading from backup piece /backup/fra/PORA58/backupset/2014_11_11/o1_mf_nnndf_TAG20141111T150900_b63fjdfl_.bkp
channel stby: piece handle=/backup/fra/PORA58/backupset/2014_11_11/o1_mf_nnndf_TAG20141111T150900_b63fjdfl_.bkp tag=TAG20141111T150900
channel stby: restored backup piece 1
channel stby: restore complete, elapsed time: 00:00:25
Finished restore at 11-NOV-14

contents of Memory Script:
{
   switch clone datafile all;
}
executing Memory Script

datafile 1 switched to datafile copy
input datafile copy RECID=8 STAMP=863365623 file name=/oradata/new58/system01.dbf
datafile 2 switched to datafile copy
input datafile copy RECID=9 STAMP=863365623 file name=/oradata/new58/sysaux01.dbf
datafile 3 switched to datafile copy
input datafile copy RECID=10 STAMP=863365623 file name=/oradata/new58/undotbs01.dbf
datafile 4 switched to datafile copy
input datafile copy RECID=11 STAMP=863365623 file name=/oradata/new58/users01.dbf

contents of Memory Script:
{
   set until scn  4840986;
   recover
   clone database
    delete archivelog
   ;
}
executing Memory Script

executing command: SET until clause

Starting recover at 11-NOV-14

starting media recovery

archived log for thread 1 with sequence 53 is already on disk as file /oradata/arch/pora58_1_53_860491320.arc
archived log file name=/oradata/arch/pora58_1_53_860491320.arc thread=1 sequence=53
media recovery complete, elapsed time: 00:00:01
Finished recover at 11-NOV-14
Oracle instance started

Total System Global Area    6012973056 bytes

Fixed Size                     2264176 bytes
Variable Size               1711276944 bytes
Database Buffers            4294967296 bytes
Redo Buffers                   4464640 bytes

contents of Memory Script:
{
   sql clone "alter system set  db_name = 
 ''NEW58'' comment=
 ''Reset to original value by RMAN'' scope=spfile";
   sql clone "alter system reset  db_unique_name scope=spfile";
   shutdown clone immediate;
   startup clone nomount;
}
executing Memory Script

sql statement: alter system set  db_name =  ''NEW58'' comment= ''Reset to original value by RMAN'' scope=spfile

sql statement: alter system reset  db_unique_name scope=spfile

Oracle instance shut down

connected to auxiliary database (not started)
Oracle instance started

Total System Global Area    6012973056 bytes

Fixed Size                     2264176 bytes
Variable Size               1711276944 bytes
Database Buffers            4294967296 bytes
Redo Buffers                   4464640 bytes
allocated channel: stby
channel stby: SID=1423 device type=DISK
sql statement: CREATE CONTROLFILE REUSE SET DATABASE "NEW58" RESETLOGS ARCHIVELOG 
  MAXLOGFILES     16
  MAXLOGMEMBERS      3
  MAXDATAFILES      100
  MAXINSTANCES     8
  MAXLOGHISTORY      292
 LOGFILE
  GROUP   1 ( '/oradata/new58/redo01.rlog' ) SIZE 200 M  REUSE,
  GROUP   2 ( '/oradata/new58/redo02.rlog' ) SIZE 200 M  REUSE,
  GROUP   3 ( '/oradata/new58/redo03.rlog' ) SIZE 200 M  REUSE,
  GROUP   4 ( '/oradata/new58/redo04.rlog' ) SIZE 200 M  REUSE
 DATAFILE
  '/oradata/new58/system01.dbf'
 CHARACTER SET ZHS16GBK


contents of Memory Script:
{
   set newname for tempfile  1 to 
 "/oradata/new58/temp01.dbf";
   switch clone tempfile all;
   catalog clone datafilecopy  "/oradata/new58/sysaux01.dbf", 
 "/oradata/new58/undotbs01.dbf", 
 "/oradata/new58/users01.dbf";
   switch clone datafile all;
}
executing Memory Script

executing command: SET NEWNAME

renamed tempfile 1 to /oradata/new58/temp01.dbf in control file

cataloged datafile copy
datafile copy file name=/oradata/new58/sysaux01.dbf RECID=1 STAMP=863365638
cataloged datafile copy
datafile copy file name=/oradata/new58/undotbs01.dbf RECID=2 STAMP=863365638
cataloged datafile copy
datafile copy file name=/oradata/new58/users01.dbf RECID=3 STAMP=863365638

datafile 2 switched to datafile copy
input datafile copy RECID=1 STAMP=863365638 file name=/oradata/new58/sysaux01.dbf
datafile 3 switched to datafile copy
input datafile copy RECID=2 STAMP=863365638 file name=/oradata/new58/undotbs01.dbf
datafile 4 switched to datafile copy
input datafile copy RECID=3 STAMP=863365638 file name=/oradata/new58/users01.dbf
Reenabling controlfile options for auxiliary database
Executing: alter database add supplemental log data
Executing: alter database force logging

contents of Memory Script:
{
   Alter clone database open resetlogs;
}
executing Memory Script

database opened
Finished Duplicate Db at 11-NOV-14
released channel: prmy1
released channel: stby

RMAN> exit

$ sqlplus / as sysdba

SQL*Plus: Release 11.2.0.4.0 Production on Tue Nov 11 15:49:48 2014

Copyright (c) 1982, 2013, Oracle. All rights reserved.

Connected to:
Oracle Database 11g Enterprise Edition Release 11.2.0.4.0 – 64bit Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options

USERNAME INST_NAME HOST_NAME SID SERIAL# VERSION STARTED SPID OPID CPID SADDR PADDR
——————– ——————– ————————- —– ——– ———- ——– ————— —– ————— —————- —————-
SYS new58 dbserver58 853 7 11.2.0.4.0 20141111 26099 19 26098 00000001C5AFBBC8 00000001C5117AA8

SQL> select object_name from system.test where rownum<=10; OBJECT_NAME ---------------------------------------------------------------------- ICOL$ I_USER1 CON$ UNDO$ C_COBJ# I_OBJ# PROXY_ROLE_DATA$ I_IND1 I_CDEF2 I_OBJ5 10 rows selected. # source db (pora58) SQL> select object_name from system.test where rownum<=10; OBJECT_NAME ------------------------------------------------------------------ truncated truncated truncated truncated truncated truncated truncated truncated truncated truncated 10 rows selected. Tip: You can using UNTIL TIME as well as UNTIL SCN. SCN_TO_TIMESTAMP: for converting given scn to timestamp value ; TIMESTAMP_TO_SCN : For getting SCN equivalent of the given timestamp value. You must do to_timestamp convertion for the character value. --over--

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