案例：Rman全备份不完全恢复数据库(2)

错误，继续往下看：

SQL> select name from v$datafile;

NAME

------------------------------------------------------------------------------

/free/oracle/oradata/exitgogo/system01.dbf

/free/oracle/oradata/exitgogo/undotbs01.dbf

/free/oracle/oradata/exitgogo/users01.dbf

/free/oracle/oradata/exitgogo/tools01.dbf

/free/oracle/oradata/exitgogo/indx01.dbf

/free/oracle/product/9.2.0.8/dbs/UNNAMED00006

6 rows selected.

可以看到，oracle中莫名的多出了一个文件UNNAMED00006，

IXDBA.NET技术社区

出现这个文件的原因是由于redo file中记录了pub的信息，在通过recover恢复后，系统也认到了有pub这个表空间的存在，但是由于控制文件中没有记录这个文件的信息，所以oracle抛了一个错误，说发现一个没有命名的文件，然后oracle系统本身给这个文件做了一个命名。

可以通过下面的方式把pub表空间数据文件移动到合适的位置。

SQL>

alter database create datafile 6 as '/free/oracle/oradata/exitgogo/pub.dbf';

Database altered.

SQL> col name format a40

SQL> select file#,name from v$datafile;

FILE# NAME

---------- ----------------------------------------

1 /free/oracle/oradata/exitgogo/system01.d bf

2 /free/oracle/oradata/exitgogo/undotbs01.dbf

3 /free/oracle/oradata/exitgogo/users01.dbf

4 /free/oracle/oradata/exitgogo/tools01.dbf

FILE# NAME

---------- ----------------------------------------

5 /free/oracle/oradata/exitgogo/indx01.dbf

6 /free/oracle/oradata/exitgogo/pub.dbf

6 rows selected.

继续恢复：

SQL> recover database using backup controlfile;

ORA-00279: change 73805 generated at 11/23/2006 17:37:18 needed for thread 1

ORA-00289: suggestion :

/free/oracle/product/9.2.0.8/dbs/archexitgogo/T0001S0000000008.ARC

ORA-00280: change 73805 for thread 1 is in sequence #8

Specify log: {<RET>=suggested | filename | AUTO | CANCEL}

auto

ORA-00279: change 74363 generated at 11/23/2006 17:38:51 needed for thread 1

ORA-00289: suggestion :

/free/oracle/product/9.2.0.8/dbs/archexitgogo/T0001S0000000009.ARC

ORA-00280: change 74363 for thread 1 is in sequence #9

ORA-00278: log file

'/free/oracle/product/9.2.0.8/dbs/archexitgogo/T0001S0000000008.ARC' no longer

needed for this recovery

ORA-00308: cannot open archived log

'/free/oracle/product/9.2.0.8/dbs/archexitgogo/T0001S0000000009.ARC'

ORA-27037: unable to obtain file status

Linux Error: 2: No such file or directory

Additional information: 3

由于我的归档没有T0001S0000000009了，所以可能需要redo file了

SQL> recover database using backup controlfile;

ORA-00279: change 74363 generated at 11/23/2006 17:38:51 needed for thread 1

ORA-00289: suggestion :

/free/oracle/product/9.2.0.8/dbs/archexitgogo/T0001S0000000009.ARC

ORA-00280: change 74363 for thread 1 is in sequence #9

Specify log: {<RET>=suggested | filename | AUTO | CANCEL}

/free/oracle/oradata/exitgogo/redo01.log

ORA-00310: archived log contains sequence 7; sequence 9 required

ORA-00334: archived log: '/free/oracle/oradata/exitgogo/redo01.log'

SQL> recover database using backup controlfile;

ORA-00279: change 74363 generated at 11/23/2006 17:38:51 needed for thread 1

ORA-00289: suggestion :

/free/oracle/product/9.2.0.8/dbs/archexitgogo/T0001S0000000009.ARC

ORA-00280: change 74363 for thread 1 is in sequence #9

Specify log: {<RET>=suggested | filename | AUTO | CANCEL}

/free/oracle/oradata/exitgogo/redo02.log

ORA-00310: archived log contains sequence 8; sequence 9 required

ORA-00334: archived log: '/free/oracle/oradata/exitgogo/redo02.log'

SQL> recover database using backup controlfile;

ORA-00279: change 74363 generated at 11/23/2006 17:38:51 needed for thread 1

ORA-00289: suggestion :

/free/oracle/product/9.2.0.8/dbs/archexitgogo/T0001S0000000009.ARC

ORA-00280: change 74363 for thread 1 is in sequence #9

Specify log: {<RET>=suggested | filename | AUTO | CANCEL}

/free/oracle/oradata/exitgogo/redo03.log

Log applied.

Media recovery complete.

可以看到，新建的pub表空间的数据信息在redo03.log中存在，这是因为我的测试数据量很小的原因。如果从rman全备份后到系统宕机这段时间数据量很大的话，可能有很多的归档信息需要恢复，同时redo file也是不可少的。

SQL> alter database open resetlogs;

alter database open resetlogs

ERROR at line 1:

ORA-01153: an incompatible media recovery is active

SQL> quit

Disconnected from Oracle9i Enterprise Edition Release 9.2.0.8.0 - Production

With the Partitioning and Oracle Data Mining options

JServer Release 9.2.0.8.0 - Production

[oracle@www exitgogo]$ sqlplus "/as sysdba"

SQL*Plus: Release 9.2.0.8.0 - Production on 星期四 11月 23 18:02:00 2006

Connected to:

Oracle9i Enterprise Edition Release 9.2.0.8.0 - Production

With the Partitioning and Oracle Data Mining options

JServer Release 9.2.0.8.0 - Production

SQL> alter database open resetlogs;

Database altered.

SQL> conn pub/pub

Connected.

SQL> select count(*) from gaojf1;

COUNT(*)

----------

753152

SQL>

可以看到，数据完全恢复，