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-- Oracle備份恢復(fù)之利用dbms_backup_restore恢復(fù)數(shù)據(jù)庫(kù)

引用

RMAN> run {
2> allocate channel ch00 device type disk;
3> backup database include current controlfile format \'/backup/full%t\' tag=\'FULLDB\';
4> sql \'alter system archive log current\';
5> backup archivelog all format \'/backup/arch%t\' tag=\'ARCHIVELOG\';
6> release channel ch00;
7> }

allocated channel: ch00
channel ch00: sid=17 devtype=DISK

Starting backup at 20-JAN-10
channel ch00: starting full datafile backupset
channel ch00: specifying datafile(s) in backupset
including current controlfile in backupset
input datafile fno=00001 name=/app/oracle/oradata/ora9i/system01.dbf
input datafile fno=00002 name=/app/oracle/oradata/ora9i/undotbs01.dbf
input datafile fno=00005 name=/app/oracle/oradata/ora9i/example01.dbf
input datafile fno=00011 name=/app/oracle/oradata/ora9i/STREAM01.dbf
input datafile fno=00010 name=/app/oracle/oradata/ora9i/xdb01.dbf
input datafile fno=00006 name=/app/oracle/oradata/ora9i/indx01.dbf
input datafile fno=00009 name=/app/oracle/oradata/ora9i/users01.dbf
input datafile fno=00003 name=/app/oracle/oradata/ora9i/cwmlite01.dbf
input datafile fno=00004 name=/app/oracle/oradata/ora9i/drsys01.dbf
input datafile fno=00007 name=/app/oracle/oradata/ora9i/odm01.dbf
input datafile fno=00008 name=/app/oracle/oradata/ora9i/tools01.dbf
channel ch00: starting piece 1 at 20-JAN-10
channel ch00: finished piece 1 at 20-JAN-10
piece handle=/backup/full708756233 comment=NONE
channel ch00: backup set complete, elapsed time: 00:02:26
Finished backup at 20-JAN-10

Starting Control File and SPFILE Autobackup at 20-JAN-10
piece handle=/app/oracle/product/9.0.2/dbs/c-2494723682-20100120-00 comment=NONE
Finished Control File and SPFILE Autobackup at 20-JAN-10

sql statement: alter system archive log current

Starting backup at 20-JAN-10
current log archived
channel ch00: starting archive log backupset
channel ch00: specifying archive log(s) in backup set
input archive log thread=1 sequence=1 recid=254 stamp=708756150
input archive log thread=1 sequence=2 recid=255 stamp=708756383
input archive log thread=1 sequence=3 recid=256 stamp=708756383
channel ch00: starting piece 1 at 20-JAN-10
channel ch00: finished piece 1 at 20-JAN-10
piece handle=/backup/arch708756383 comment=NONE
channel ch00: backup set complete, elapsed time: 00:00:02
Finished backup at 20-JAN-10

Starting Control File and SPFILE Autobackup at 20-JAN-10
piece handle=/app/oracle/product/9.0.2/dbs/c-2494723682-20100120-01 comment=NONE
Finished Control File and SPFILE Autobackup at 20-JAN-10

released channel: ch00

假設(shè)現(xiàn)在數(shù)據(jù)庫(kù)異常宕機(jī)

引用

SQL> shutdown abort
ORACLE instance shut down

啟動(dòng)數(shù)據(jù)庫(kù)至nomount狀態(tài)

引用

SQL> startup nomount
ORACLE instance started.

Total System Global Area 1125193868 bytes
Fixed Size                   452748 bytes
Variable Size             335544320 bytes
Database Buffers          788529152 bytes
Redo Buffers                 667648 bytes

1、利用dbms_backup_restore恢復(fù)控制文件

引用

SQL> DECLARE
2 devtype varchar2(256);
3 done boolean;
4 BEGIN
5 devtype := dbms_backup_restore.DeviceAllocate(type => \'\',ident => \'testctl\');
6 dbms_backup_restore.RestoresetdataFile;
7 dbms_backup_restore.RestoreControlFileto(\'/app/oracle/oradata/ora9i/control01.ctl\');
8 dbms_backup_restore.RestoreBackupPiece(\'/backup/full708756233\',done => done);
9 dbms_backup_restore.RestoresetdataFile;
10 dbms_backup_restore.RestoreControlFileto(\'/app/oracle/oradata/ora9i/control02.ctl\');
11 dbms_backup_restore.RestoreBackupPiece(\'/backup/full708756233\',done => done);
12 dbms_backup_restore.RestoresetdataFile;
13 dbms_backup_restore.RestoreControlFileto(\'/app/oracle/oradata/ora9i/control03.ctl\');
14 dbms_backup_restore.RestoreBackupPiece(\'/backup/full708756233\',done => done);
15 dbms_backup_restore.DeviceDeallocate;
16 END;
17 /

PL/SQL procedure successfully completed.

當(dāng)然也已可用rman進(jìn)行控制文件恢復(fù)

引用

RMAN> restore controlfile from \'/app/oracle/product/9.0.2/dbs/c-2494723682-20100120-00\';

Starting restore at 20-JAN-10

using channel ORA_DISK_1
channel ORA_DISK_1: restoring controlfile
channel ORA_DISK_1: restore complete
replicating controlfile
input filename=/app/oracle/oradata/ora9i/control01.ctl
output filename=/app/oracle/oradata/ora9i/control02.ctl
output filename=/app/oracle/oradata/ora9i/control03.ctl
Finished restore at 20-JAN-10

2、利用dbms_backup_restore恢復(fù)數(shù)據(jù)文件

引用

SQL> DECLARE
2 devtype varchar2(256);
3 done boolean;
4 BEGIN
5 devtype := dbms_backup_restore.DeviceAllocate (type => \'\',ident => \'testdatafile\');
6 dbms_backup_restore.RestoreSetDatafile;
7 dbms_backup_restore.RestoreDatafileTo(dfnumber => 1,toname => \'/app/oracle/oradata/ora9i/system01.dbf\');
8 dbms_backup_restore.RestoreDatafileTo(dfnumber => 2,toname => \'/app/oracle/oradata/ora9i/undotbs01.dbf\');
9 dbms_backup_restore.RestoreBackupPiece(done => done,handle => \'/backup/full708756233\', params => null);
10 dbms_backup_restore.DeviceDeallocate;
11 END;
12 /

PL/SQL procedure successfully completed.

3、利用dbms_backup_restore恢復(fù)歸檔日志

引用

SQL> DECLARE
2 devtype varchar2(256);
3 done boolean;
4 BEGIN
5 devtype := dbms_backup_restore.DeviceAllocate (type => \'\',ident => \'testarchlog\');
6 dbms_backup_restore.RestoreSetArchivedLog(destination=>\'/app/oracle/product/9.0.2/dbs/arch\');
7 dbms_backup_restore.RestoreArchivedLog(thread=>1,sequence=>1);
8 dbms_backup_restore.RestoreArchivedLog(thread=>1,sequence=>2);
9 dbms_backup_restore.RestoreArchivedLog(thread=>1,sequence=>3);
10 dbms_backup_restore.RestoreBackupPiece(done => done,handle => \'/backup/arch708756383\', params => null);
11 dbms_backup_restore.DeviceDeallocate;
12 END;
13 /

PL/SQL procedure successfully completed.