如何從備份集中恢復(fù)歸檔日志
2024-07-21 02:34:13
供稿：網(wǎng)友
這一類的操作是因?yàn)閬G失了所有的控制文件，而RMAN的備份信息又存儲(chǔ)在控制文件之中。
所以只能使用DMBS_BACKUP_RESTORE從備份集中恢復(fù)數(shù)據(jù)文件、歸檔日志等進(jìn)行恢復(fù)。
本例示范如何恢復(fù)歸檔日志文件，恢復(fù)數(shù)據(jù)文件的例子參考:應(yīng)對(duì)RMAN-06026錯(cuò)誤，使用dbms_backup_restore進(jìn)行恢復(fù)
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.
執(zhí)行不完全恢復(fù)以后，resetlogs打開數(shù)據(jù)庫(kù):
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>
