Oracle数据库教程：ORA-01103错误解析

这是一测试库，我将参数文件，控制文件，数据文件全部删除之后，做数据恢复，但是

我把控制文件和参数文件都恢复回来了，可数据库却怎么也打不开，报ORA-01103: database name 'WWL' in control file is not 'DUMMY'错误
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我的数据库名称是:WWL

2、执行过程：

恢复参数文件：

RMAN> setDBID=5520179

executing command: SET DBID

RMAN> restorespfile from autobackup;

Starting restore at 23-MAY-12

using target database control file insteadof recovery catalog

allocated channel: ORA_DISK_1

channel ORA_DISK_1: sid=39 devtype=DISK

channel ORA_DISK_1: looking for autobackupon day: 20120523

channel ORA_DISK_1: autobackup found:c-5520179-20120523-04

channel ORA_DISK_1: SPFILE restore fromautobackup complete

Finished restore at 23-MAY-12

RMAN>

3、恢复控制文件

RMAN> restorecontrolfile from autobackup;

Starting restore at 23-MAY-12

using channel ORA_DISK_1

channel ORA_DISK_1: looking for autobackupon day: 20120523

channel ORA_DISK_1: autobackup found:c-5520179-20120523-04

channel ORA_DISK_1: control file restorefrom autobackup complete

output filename=/DBSoft/product/10.2.0/db_1/dbs/cntrlWWL.dbf

Finished restore at 23-MAY-12

RMAN>

4、报错信息：

RMAN> sql 'alterdatabase mount';

sql statement: alter database mount

RMAN-00571:===========================================================

RMAN-00569: =============== ERROR MESSAGESTACK FOLLOWS ===============

RMAN-00571:===========================================================

RMAN-03009: failure of sql command ondefault channel at 05/23/2012 18:51:31

RMAN-11003: failure during parse/executionof SQL statement: alter database mount

ORA-01103: database name 'WWL' in controlfile is not 'DUMMY'

RMAN> alterdatabase mount;

using target database control file insteadof recovery catalog

RMAN-00571:===========================================================

RMAN-00569: =============== ERROR MESSAGESTACK FOLLOWS ===============

RMAN-00571:===========================================================

RMAN-03002: failure of alter db command at05/23/2012 18:39:47

ORA-01103: database name 'WWL' in controlfile is not 'DUMMY'

SQL> alterdatabase mount;

alter database mount

ERROR at line 1:

ORA-01103: database name 'WWL' in controlfile is not 'DUMMY'

注意：问题是我恢复的控制文件没有错呀，在本机器上也没有部署过DUMMY的数据库呀，只有一个实例是WWL。

查询实例信息，实例信息显示没有错呀是WWL。

SQL> selectinstance_name,status from v$instance;

INSTANCE_NAME    STATUS

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

WWL              STARTED

SQL> alterdatabase mount;       ----顺便执行了下mount database;

alter database mount

*

ERROR at line 1:

ORA-01103: database name 'WWL' in controlfile is not 'DUMMY'

奇怪的事发生了，现在再次登录到RMAM居然连接到的是DUMMY库：

问题是，我确定没有这个库呀，怎么办。。。

[Oracle@wwldb dbs]$rman target /

Recovery Manager: Release 10.2.0.1.0 -Production on Wed May 23 19:01:09 2012

Copyright (c) 1982, 2005, Oracle.  All rights reserved.

connected to target database: DUMMY (notmounted)

RMAN> exit     

我们刚才做了参数文件和控制文件的恢复，要不将数据库重启下，看有没有问题。

SQL> shutdownimmediate

ORA-01507: database not mounted

Oracle instance shut down.

SQL> startupmount;

Oracle instance started.

Total System Global Area  285212672 bytes

Fixed Size                  1218968 bytes

Variable Size              79693416 bytes

Database Buffers          197132288 bytes

Redo Buffers                7168000 bytes

Database mounted.

再次登录正常。

[Oracle@wwldb dbs]$rman target /

Recovery Manager: Release 10.2.0.1.0 -Production on Wed May 23 19:04:15 2012

Copyright (c) 1982, 2005, Oracle.  All rights reserved.

connected to target database: WWL(DBID=5520179, not open)

这个问题我一兄弟在AIX，Linux，Windows 上分别做实验了，结果是在Windows下不用重启数据库，Rman就可以认到，而不会是DUMMY数据库。
B，每小时执行一次，整点执行

interval => 'trunc(sysdate,'HH')+1/24'

C，一个小时后执行

interval => 'sysdate+1/24'

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