【DB笔试面试759】在Oracle中，如果主库丢失归档文件，那么物理DG如何恢复？

SELECT (SELECT MIN(D.CHECKPOINT_CHANGE#) FROM V$DATAFILE D) DATAFILE_SCN,
       (SELECT MIN(D.CHECKPOINT_CHANGE#) FROM   V$DATAFILE_HEADER D WHERE  ROWNUM = 1) DATAFILE_HEADER_SCN,
       (SELECT CURRENT_SCN FROM V$DATABASE) CURRENT_SCN,
       (SELECT MIN(B.NEXT_CHANGE#) FROM   V$ARCHIVED_LOG B
        WHERE  B.SEQUENCE# IN (968,644)--这里修改成丢失的归档号
        AND  RESETLOGS_CHANGE# =(SELECT D.RESETLOGS_CHANGE# FROM V$DATABASE D)) NEXT_CHANGE#
FROM   DUAL;

RUN { 
ALLOCATE CHANNEL D1 TYPE DISK; 
ALLOCATE CHANNEL D2 TYPE DISK; 
ALLOCATE CHANNEL D3 TYPE DISK; 
ALLOCATE CHANNEL D4 TYPE DISK; 
BACKUP AS COMPRESSED BACKUPSET INCREMENTAL FROM SCN 750983 DATABASE FORMAT '/ARCHIVE/STANDBY_NEW_%D_%T_%U.BAK' INCLUDE CURRENT CONTROLFILE FOR STANDBY FILESPERSET=5  TAG 'FOR STANDBY NEW'; 
RELEASE CHANNEL D1; 
RELEASE CHANNEL D2; 
RELEASE CHANNEL D3;
RELEASE CHANNEL D4;
}
list backupset of controlfile;--找到控制文件的备份集文件名

SELECT ''''||NAME||''' ;' FROM V$DATAFILE; --记录备库数据文件原名称及路径
startup force nomount
cp +DATA/oranlhr/controlfile/control01.ctl +DATA/oranlhr/controlfile/control01.ctl_bk
restore standby  controlfile from '/home/oracle/bak/standby_TESTDG_20180525_19t3q9sb_1_1.bak';
select 'alter database rename file '''||NAME ||''' TO ' FROM V$datafile; --查询恢复控制文件后备库数据文件的名称

ALTER DATABASE MOUNT; 
CATALOG START WITH '/ARCHIVE/';

list incarnation of database;
reset database to incarnation 1;--应该和主库保持一致

--重命名备库的数据文件
alter system set standby_file_management=manual sid='*';
alter database rename file '+DATADG/testdg/datafile/system.274.976812987' TO '+DATADG/testdgphy/datafile/system.261.976877439';
......
alter database rename file '+DATADG/testdg/datafile/undotbs2.286.976813901' TO '+DATADG/testdgphy/datafile/undotbs2.257.976877619';
alter system set standby_file_management=auto sid='*';

--最后执行恢复操作
RECOVER DATABASE NOREDO;

ALTER DATABASE RECOVER MANAGED STANDBY DATABASE USING CURRENT LOGFILE DISCONNECT FROM SESSION;

COL NAME FOR A100
SET LINESIZE 9999  PAGESIZE 9999
COL NEXT_CHANGE# FOR 999999999999999
SELECT THREAD#, NAME, SEQUENCE#, ARCHIVED, APPLIED, A.NEXT_CHANGE#
  FROM V$ARCHIVED_LOG A
 WHERE A.SEQUENCE# >= (SELECT MAX(B.SEQUENCE#) - 3
                         FROM V$ARCHIVED_LOG B
                        WHERE B.THREAD# = A.THREAD#
                          AND B.RESETLOGS_CHANGE# = A.RESETLOGS_CHANGE#
                          AND B.RESETLOGS_CHANGE# =
                              (SELECT D.RESETLOGS_CHANGE# FROM V$DATABASE D)
                          AND B.APPLIED = 'YES' 
              GROUP BY B.THREAD#)
 ORDER BY A.THREAD#, A.SEQUENCE#;

SELECT A.USERNAME,
       (SELECT UPPER(NB.OSUSER) FROM V$SESSION NB WHERE NB.SID = A.SID) OSUSER,
       (SELECT NB.SID || ',' || NB.SERIAL# || ',' || PR.SPID
          FROM V$PROCESS PR, V$SESSION NB
         WHERE NB.PADDR = PR.ADDR
           AND NB.SID = A.SID
           AND NB.SERIAL# = A.SERIAL#) SESSION_INFO,
       A.TARGET,
       A.OPNAME,
       TO_CHAR(A.START_TIME, 'YYYY-MM-DD HH24:MI:SS') START_TIME,
       ROUND(A.SOFAR * 100 / A.TOTALWORK, 2) || '%' AS PROGRESS,
       (A.TIME_REMAINING) TIME_REMAINING,
       (A.SOFAR || ':' || A.TOTALWORK) SOFAR_TOTALWORK,
       (A.ELAPSED_SECONDS) ELAPSED_SECONDS,
       MESSAGE MESSAGE,
       (SELECT NB.EVENT FROM V$SESSION_WAIT NB WHERE NB.SID = A.SID) WAIT_EVENT,
       (SELECT NB.STATUS FROM V$SESSION NB WHERE NB.SID = A.SID) STATUS
  FROM V$SESSION_LONGOPS A
 WHERE A.TIME_REMAINING <> 0
 ORDER BY STATUS, A.TIME_REMAINING DESC, A.SQL_ID, A.SID;

SYS@DGPHY1> alter database open;
alter database open
*
ERROR at line 1:
ORA-10458: standby database requires recovery
ORA-01152: file 1 was not restored from a sufficiently old backup
ORA-01110: data file 1: '+DATADG/testdgphy/datafile/system.261.976877439'