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>