非关键性数据文件丢失(可以脱机数据文件的丢失)： run{sql alter database datafile offline;restore datafile ;recover datafile ;slq alter database datafile online;} 除了system、undo_tablespace参数后值对应的表空间都可以采用以上的办法恢复。 [oracl
非关键性数据文件丢失(可以脱机数据文件的丢失)：
run{
sql 'alter database datafile <> offline';
restore datafile <>;
recover datafile <>;
slq 'alter database datafile <> online';
}[oracle@oracle ~]$ ls /u01/oracle/oradata/jadl10g/ control01.ctl control03.ctl redo01.log redo03.log system01.dbf undotbs01.dbf control02.ctl example01.dbf redo02.log sysaux01.dbf temp01.dbf users01.dbf [oracle@oracle ~]$ rm /u01/oracle/oradata/jadl10g/example01.dbf [oracle@oracle ~]$ sqlplus / as sysdba SQL*Plus: Release 10.2.0.5.0 - Production on Thu Nov 6 15:23:57 2014 Copyright (c) 1982, 2010, Oracle. All Rights Reserved. Connected to: Oracle Database 10g Enterprise Edition Release 10.2.0.5.0 - 64bit Production With the Partitioning, Oracle Label Security, OLAP, Data Mining Scoring Engine and Real Application Testing options SQL> select * from hr.employees; select * from hr.employees * ERROR at line 1: ORA-01116: error in opening database file 5 ORA-01110: data file 5: '/u01/oracle/oradata/jadl10g/example01.dbf' ORA-27041: unable to open file Linux-x86_64 Error: 2: No such file or directory Additional information: 3 [oracle@oracle ~]$ vi /tmp/1.rman
[oracle@oracle ~]$ cat /tmp/1.rman
run{
sql 'alter database datafile 5 offline';
restore datafile 5;
recover datafile 5;
sql 'alter database datafile 5 online';
}
[oracle@oracle ~]$ rman target / cmdfile=/tmp/1.rman
Recovery Manager: Release 10.2.0.5.0 - Production on Thu Nov 6 15:29:28 2014
Copyright (c) 1982, 2007, Oracle. All rights reserved.
connected to target database: JADL10G (DBID=2011530396)
RMAN> run{
2> sql 'alter database datafile 5 offline';
3> restore datafile 5;
4> recover datafile 5;
5> sql 'alter database datafile 5 online';
6> }
7>
using target database control f【本文来自鸿网互联 (http://www.68idc.cn)】ile instead of recovery catalog
sql statement: alter database datafile 5 offline
Starting restore at 06-NOV-14
allocated channel: ORA_DISK_1
channel ORA_DISK_1: sid=159 devtype=DISK
channel ORA_DISK_1: starting datafile backupset restore
channel ORA_DISK_1: specifying datafile(s) to restore from backup set
restoring datafile 00005 to /u01/oracle/oradata/jadl10g/example01.dbf
channel ORA_DISK_1: reading from backup piece /u01/oracle/flash_recovery_area/JADL10G/backupset/2014_11_06/o1_mf_nnndf_TAG20141106T135107_b5p32dhf_.bkp
channel ORA_DISK_1: restored backup piece 1
piece handle=/u01/oracle/flash_recovery_area/JADL10G/backupset/2014_11_06/o1_mf_nnndf_TAG20141106T135107_b5p32dhf_.bkp tag=TAG20141106T135107
channel ORA_DISK_1: restore complete, elapsed time: 00:00:07
Finished restore at 06-NOV-14
Starting recover at 06-NOV-14
using channel ORA_DISK_1
starting media recovery
media recovery complete, elapsed time: 00:00:00
Finished recover at 06-NOV-14
sql statement: alter database datafile 5 online
Recovery Manager complete.
RMAN> backup as copy datafile 5; Starting backup at 06-NOV-14 using target database control file instead of recovery catalog allocated channel: ORA_DISK_1 channel ORA_DISK_1: sid=159 devtype=DISK channel ORA_DISK_1: starting datafile copy input datafile fno=00005 name=/u01/oracle/oradata/jadl10g/example01.dbf output filename=/u01/oracle/flash_recovery_area/JADL10G/datafile/o1_mf_example_b5pbo2pc_.dbf tag=TAG20141106T160034 recid=10 stamp=862934437 channel ORA_DISK_1: datafile copy complete, elapsed time: 00:00:03 Finished backup at 06-NOV-14 RMAN> recover copy of datafile 5; ---改命令就是对上面的数据文件做增量的修改， Starting recover at 06-NOV-14 using channel ORA_DISK_1 no copy of datafile 5 found to recover Finished recover at 06-NOV-14
SQL> select name from v$asm_diskgroup;
vi a.rman
run{
sql 'alter tablespace a1 offline immediate';
set newname for datafile 7 to '+DB';
restore datafile 7;
switch datafile all; ---交换文件
recover datafile 7;
slq 'alter tablespace a1 online';
}
