After Flashback database can I use my backups?

Question

I performed a flashback database and then opened the database with
alter database open resetlogs;
Now when I try the following command in rman I get this message:
RMAN> list backup
2> ;
new incarnation of database registered in recovery catalog
starting full resync of recovery catalog
full resync complete
List of Backup Sets
===================
BS Key Type LV Size Device Type Elapsed Time Completion Time
435 Incr 1 9.36M DISK 00:00:11 30-AUG-09
BP Key: 440 Status: AVAILABLE Compressed: NO Tag: TAG20090830T170015
All the backups are still there but it tells me a new incarnation of the database has been registered in the recovery catalog.
My question is: Do I need to do anything different from now on? Also can my existing backups still be used if needed?
thanks in advance,
Richard

Answer 1

For u question ist take a rman backup.
RMAN> backup database;
Starting backup at 31-AUG-09
using target database control file instead of recovery catalog
allocated channel: ORA_DISK_1
channel ORA_DISK_1: sid=140 devtype=DISK
channel ORA_DISK_1: starting full datafile backupset
channel ORA_DISK_1: specifying datafile(s) in backupset
input datafile fno=00001 name=F:\ORACLE\PRODUCT\10.2.0\ORADATA\ORCL\SYSTEM01.DBF
input datafile fno=00003 name=F:\ORACLE\PRODUCT\10.2.0\ORADATA\ORCL\SYSAUX01.DBF
input datafile fno=00005 name=F:\ORACLE\PRODUCT\10.2.0\ORADATA\ORCL\EXAMPLE01.DBF
input datafile fno=00002 name=F:\ORACLE\PRODUCT\10.2.0\ORADATA\ORCL\UNDOTBS01.DBF
input datafile fno=00004 name=F:\ORACLE\PRODUCT\10.2.0\ORADATA\ORCL\USERS01.DBF
channel ORA_DISK_1: starting piece 1 at 31-AUG-09
channel ORA_DISK_1: finished piece 1 at 31-AUG-09
piece handle=F:\ORACLE\PRODUCT\10.2.0\FLASH_RECOVERY_AREA\ORCL\BACKUPSET\2009_08_31\O1_MF_NNNDF_TAG20090831T131520_59PY48QX_.BKP tag=TAG20090831T131520 comment=
channel ORA_DISK_1: backup set complete, elapsed time: 00:00:45
channel ORA_DISK_1: starting full datafile backupset
channel ORA_DISK_1: specifying datafile(s) in backupset
including current control file in backupset
including current SPFILE in backupset
channel ORA_DISK_1: starting piece 1 at 31-AUG-09
channel ORA_DISK_1: finished piece 1 at 31-AUG-09
piece handle=F:\ORACLE\PRODUCT\10.2.0\FLASH_RECOVERY_AREA\ORCL\BACKUPSET\2009_08_31\O1_MF_NCSNF_TAG20090831T131520_59PY5R4D_.BKP tag=TAG20090831T131520 comment=
channel ORA_DISK_1: backup set complete, elapsed time: 00:00:04
Finished backup at 31-AUG-09
After that …..
SQL> create table y (id number);
Table created.
SQL> select to_char(sysdate,'dd-mm-yy hh24:mi:ss') from dual;
TO_CHAR(SYSDATE,'
31-08-09 13:23:03
SQL> drop table y
2 ;
Table dropped.
SQL> shutdown abort
ORACLE instance shut down.
SQL> startup mount
ORACLE instance started.
Total System Global Area 612368384 bytes
Fixed Size 1250428 bytes
Variable Size 226495364 bytes
Database Buffers 377487360 bytes
Redo Buffers 7135232 bytes
Database mounted.
SQL> flashback database to timestamp to_timestamp('31-08-09 13:23:03','dd-mm-yy hh24:mi:ss');
Flashback complete.
SQL> alter database open resetlogs;
Database altered.
SQL> desc y
Name Null? Type
ID NUMBER
SQL> shutdown immediate
Database closed.
Database dismounted.
ORACLE instance shut down.
SQL> startup mount
ORACLE instance started.
Total System Global Area 612368384 bytes
Fixed Size 1250428 bytes
Variable Size 226495364 bytes
Database Buffers 377487360 bytes
Redo Buffers 7135232 bytes
Database mounted.
SQL> select name from v$datafile;
NAME
F:\ORACLE\PRODUCT\10.2.0\ORADATA\ORCL\SYSTEM01.DBF
F:\ORACLE\PRODUCT\10.2.0\ORADATA\ORCL\UNDOTBS01.DBF
F:\ORACLE\PRODUCT\10.2.0\ORADATA\ORCL\SYSAUX01.DBF
F:\ORACLE\PRODUCT\10.2.0\ORADATA\ORCL\USERS01.DBF
F:\ORACLE\PRODUCT\10.2.0\ORADATA\ORCL\EXAMPLE01.DBF
SQL> host del F:\ORACLE\PRODUCT\10.2.0\ORADATA\ORCL\USERS01.DBF
SQL> alter database open;
alter database open
ERROR at line 1:
ORA-01157: cannot identify/lock data file 4 - see DBWR trace file
ORA-01110: data file 4: 'F:\ORACLE\PRODUCT\10.2.0\ORADATA\ORCL\USERS01.DBF'
Then I restore old backup from rman
RMAN> restore database;
Starting restore at 31-AUG-09
using target database control file instead of recovery catalog
allocated channel: ORA_DISK_1
channel ORA_DISK_1: sid=154 devtype=DISK
channel ORA_DISK_1: starting datafile backupset restore
channel ORA_DISK_1: specifying datafile(s) to restore from backup set
restoring datafile 00001 to F:\ORACLE\PRODUCT\10.2.0\ORADATA\ORCL\SYSTEM01.DBF
restoring datafile 00002 to F:\ORACLE\PRODUCT\10.2.0\ORADATA\ORCL\UNDOTBS01.DBF
restoring datafile 00003 to F:\ORACLE\PRODUCT\10.2.0\ORADATA\ORCL\SYSAUX01.DBF
restoring datafile 00004 to F:\ORACLE\PRODUCT\10.2.0\ORADATA\ORCL\USERS01.DBF
restoring datafile 00005 to F:\ORACLE\PRODUCT\10.2.0\ORADATA\ORCL\EXAMPLE01.DBF
channel ORA_DISK_1: reading from backup piece F:\ORACLE\PRODUCT\10.2.0\FLASH_RECOVERY_AREA\ORCL\BACKUPSET\2009_08_31\O1_MF_NNNDF_TAG20090831T131520_59PY48QX_.BK
channel ORA_DISK_1: restored backup piece 1
piece handle=F:\ORACLE\PRODUCT\10.2.0\FLASH_RECOVERY_AREA\ORCL\BACKUPSET\2009_08_31\O1_MF_NNNDF_TAG20090831T131520_59PY48QX_.BKP tag=TAG20090831T131520
channel ORA_DISK_1: restore complete, elapsed time: 00:00:46
Finished restore at 31-AUG-09
RMAN> recover database;
Starting recover at 31-AUG-09
using channel ORA_DISK_1
starting media recovery
archive log thread 1 sequence 22 is already on disk as file F:\ORACLE\PRODUCT\10.2.0\ARC\ARC00022_0693947048.001
archive log thread 1 sequence 23 is already on disk as file F:\ORACLE\PRODUCT\10.2.0\ARC\ARC00023_0693947048.001
archive log filename=F:\ORACLE\PRODUCT\10.2.0\ARC\ARC00022_0693947048.001 thread=1 sequence=22
archive log filename=F:\ORACLE\PRODUCT\10.2.0\ARC\ARC00023_0693947048.001 thread=1 sequence=23
media recovery complete, elapsed time: 00:00:06
Finished recover at 31-AUG-09
Then I back sqlplus
SQL> alter database open;
Database altered.
SQL> desc y
Name Null? Type
ID NUMBER
So answer your question is , YES you can restore from you old backup , not need to do anything else.
Regards
Liakat hossain