如何从备份集中恢复归档日志

这一类的操作是因为丢失了所有的控制文件，而RMAN的备份信息又存储在控制文件之中。

　　

　　所以只能使用DMBS_BACKUP_RESTORE从备份集中恢复数据文件、归档日志等进行恢复。

　　

　　本例示范如何恢复归档日志文件，恢复数据文件的例子参考:应对RMAN-06026错误，使用dbms_backup_restore进行恢复

　　

　　SQL> DECLARE

　　 2　 devtype varchar2(256);

　　 3　 done boolean;

　　 4　 BEGIN

　　 5　 devtype:=sys.dbms_backup_restore.deviceAllocate(type=>'',ident=>'t1');

　　 6　 sys.dbms_backup_restore.restoreSetArchivedLog(destination=>'D:\oracle\oradata\eygle\archive');

　　 7　 sys.dbms_backup_restore.restoreArchivedLog(thread=>1,sequence=>6);

　　 8　 sys.dbms_backup_restore.restoreBackupPiece(done=>done,handle=>'D:\oracle\oradata\eygle\bak\ARCH_EYGLE_20050702_7',params=>null);

　　 9　 sys.dbms_backup_restore.deviceDeallocate;

　　10　END;

　　11　/

　　

　　PL/SQL procedure successfully completed.

　　

　　执行不完全恢复以后，resetlogs打开数据库:

　　

　　SQL> recover database using backup controlfile until cancel;

　　ORA-00279: change 459405 generated at 07/02/2005 23:58:32 needed for thread1

　　ORA-00289: suggestion : D:\ORACLE\ORADATA\EYGLE\ARCHIVE\ARC16.ARC

　　ORA-00280: change 459405 for thread 1 is in sequence #6

　　

　　Specify log: {=suggested | filename | AUTO | CANCEL}

　　

　　ORA-00279: change 459428 generated at 07/02/2005 23:59:32 needed for thread1

　　ORA-00289: suggestion : D:\ORACLE\ORADATA\EYGLE\ARCHIVE\ARC17.ARC

　　ORA-00280: change 459428 for thread 1 is in sequence #7

　　ORA-00278: log file 'D:\ORACLE\ORADATA\EYGLE\ARCHIVE\ARC16.ARC' no longer needed for this recovery

　　

　　Specify log: {=suggested | filename | AUTO | CANCEL}

　　

　　ORA-00279: change 459516 generated at 07/03/2005 00:02:40 needed for thread1

　　ORA-00289: suggestion : D:\ORACLE\ORADATA\EYGLE\ARCHIVE\ARC18.ARC

　　ORA-00280: change 459516 for thread 1 is in sequence #8

　　ORA-00278: log file 'D:\ORACLE\ORADATA\EYGLE\ARCHIVE\ARC17.ARC' no longer needed for this recovery

　　

　　Specify log: {=suggested | filename | AUTO | CANCEL}

　　

　　ORA-00328: archived log ends at change 456840, need later change 459516

　　ORA-00334: archived log: 'D:\ORACLE\ORADATA\EYGLE\ARCHIVE\ARC18.ARC'

　　

　　SQL> recover database using backup controlfile until cancel;

　　ORA-00279: change 459516 generated at 07/03/2005 00:02:40 needed for thread1

　　ORA-00289: suggestion : D:\ORACLE\ORADATA\EYGLE\ARCHIVE\ARC18.ARC

　　ORA-00280: change 459516 for thread 1 is in sequence #8

　　

　　Specify log: {=suggested | filename | AUTO | CANCEL}

　　cancel

　　Media recovery cancelled.

　　SQL> alter database open resetlogs;

　　

　　Database altered.

　　

　　SQL>