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查看数据库情况：
C:\>set oracle_sid=bdup
C:\>sqlplus / as sysdba
SQL*Plus: Release 11.2.0.1.0 Production on 星期四 4月 10 08:55:42 2014
Copyright (c) 1982, 2010, Oracle. All rights reserved.
已连接到空闲例程。
SQL> startup
ORACLE 例程已经启动。
Total System Global Area 1235959808 bytes
Fixed
Size
2175288 bytes
Variable
Size
956305096 bytes
Database
Buffers
268435456 bytes
Redo
Buffers
9043968 bytes
数据库装载完毕。
数据库已经打开。
SQL> show parameter instance
NAME
TYPE
VALUE
------------------------------------ ----------------------
--------
active_instance_count
integer
cluster_database_instances
integer
1
instance_groups
string
instance_name
string
bdup
instance_number
integer
0
instance_type
string
RDBMS
open_links_per_instance
integer
4
parallel_instance_group
string
parallel_server_instances
integer
1
SQL> shutdown immediate
新的sid为wtest，新的数据库名为wtest。
1.重新创建windows下的实例服务
C:\>oradim -NEW -SID wtest -startmode manual
实例已创建。
2.修改相关的目录
数据文件，控制文件，日志文件存放目录：D:\oradata\bdup --->wtest
C:\app\Administrator\admin\bdup\adump
--->wtest
C:\app\Administrator\diag\rdbms\bdup\bdup
--->wtest
C:\app\Administrator\product\11.2.0\dbhome_1\database
C:\app\Administrator\product\11.2.0\dbhome_1\database>dir
C:\app\Administrator\product\11.2.0\dbhome_1\database 的目录
2014/03/06
11:28
2,048 hc_bdup.dat
---->hc_wtest.dat
2014/01/15
22:03
2,048 hc_orcl.dat
2014/03/06
08:50
1,203 initbdup.ora ----->initwtest.ora
2014/03/18
15:34
1,149 INITorcl.ORA
2005/12/22
04:07
31,744 oradba.exe
2014/04/10
09:14
7,405 oradim.log
2014/03/05
10:52
2,560 PWDbdup.ora ------>PWDwtest.ora
2014/03/18
17:27
2,560 PWDhjj.ora
2014/03/29
21:47
1,536 PWDorcl.ora
2014/03/04
15:24
104,858,112 REDO04.LOG
2014/03/04
15:24
104,858,112 REDO05.LOG
2014/03/18
10:58
9,748,480 SNCFORCL.ORA
2014/04/10
08:56
13,824 SPFILEBDUP.ORA ------>SPFILEWTEST.ORA
2014/04/05
13:59
3,584 SPFILEORCL.ORA
3.修改参数文件
C:\app\Administrator\product\11.2.0\dbhome_1\database目录下修改initwtest.ora
wtest.__db_cache_size=285212672
wtest.__java_pool_size=16777216
wtest.__large_pool_size=16777216
wtest.__oracle_base=‘C:\app\Administrator‘#ORACLE_BASE set from
environment
wtest.__pga_aggregate_target=419430400
wtest.__sga_target=822083584
wtest.__shared_io_pool_size=0
wtest.__shared_pool_size=469762048
wtest.__streams_pool_size=16777216
*.audit_file_dest=‘C:\app\Administrator\admin\wtest\adump‘
*.audit_trail=‘db‘
*.compatible=‘11.2.0.0.0‘
*.control_file_record_keep_time=7
*.control_files=‘D:\oradata\wtest\control01.ctl‘,‘D:\oradata\wtest\control02.ctl‘
*.db_block_size=8192
*.db_domain=‘‘
*.db_name=‘wtest‘
*.db_recovery_file_dest=‘C:\app\Administrator\flash_recovery_area\wtest‘
*.db_recovery_file_dest_size=4102029312
*.diagnostic_dest=‘C:\app\Administrator‘
*.dispatchers=‘(PROTOCOL=TCP) (SERVICE=wtestXDB)‘
*.fast_start_mttr_target=90
*.job_queue_processes=1000
*.memory_target=1232076800
*.open_cursors=300
*.processes=150
*.remote_login_passwordfile=‘EXCLUSIVE‘
*.sga_target=587202560
*.undo_tablespace=‘UNDOTBS1‘
4.启动数据库
C:\>set oracle_sid=wtest
C:\>sqlplus / as sysdba
SQL*Plus: Release 11.2.0.1.0 Production on Thu Apr 10 10:58:36 2014
Copyright (c) 1982, 2010, Oracle. All rights
reserved.
Connected to an idle instance.
SQL> startup
ORACLE instance started.
Total System Global Area 1235959808 bytes
Fixed
Size
2175288 bytes
Variable
Size
939527880 bytes
Database
Buffers
285212672 bytes
Redo
Buffers
9043968 bytes
ORA-01103: database name ‘BDUP‘ in control file is not
‘WTEST‘
SQL> show parameter instance_name
NAME
TYPE
VALUE
------------------------------------
--------------------------------- ------
instance_name
string
wtest
SQL> select instance_name,status from v$instance;
INSTANCE_NAME
STATUS
------------------------------------------------ --------
wtest
STARTED
至此SID已经修改成wtest了，但是DB_NAME还是BDUP，需要重建控制文件
5.重建控制文件
C:\>set oracle_sid=orcl
C:\>sqlplus / as sysdba
SQL*Plus: Release 11.2.0.1.0 Production on Thu Apr 10 11:04:42 2014
Copyright (c) 1982, 2010, Oracle. All rights reserved.
Connected to:
Oracle Database 11g Enterprise Edition Release 11.2.0.1.0 - 64bit
Production
With the Partitioning, OLAP, Data Mining and Real Application
Testing options
SQL> select status from v$instance;
STATUS
------------
OPEN
SQL> alter database backup controlfile to trace as ‘D:\oradata\wtest\aa.ctl‘;
Database altered.
在aa.ctl文件中找到如下内容：
CREATE CONTROLFILE SET DATABASE "WTEST" RESETLOGS
NOARCHIVELOG
MAXLOGFILES
16
MAXLOGMEMBERS 3
MAXDATAFILES
100
MAXINSTANCES
8
MAXLOGHISTORY 292
LOGFILE
GROUP 1
‘D:\oradata\wtest\REDO01.LOG‘ SIZE 50M BLOCKSIZE
512,
GROUP 2
‘D:\oradata\wtest\REDO02.LOG‘ SIZE 50M BLOCKSIZE
512,
GROUP 3
‘D:\oradata\wtest\REDO03.LOG‘ SIZE 50M BLOCKSIZE
512
DATAFILE
‘D:\oradata\wtest\SYSTEM01.DBF‘,
‘D:\oradata\wtest\SYSAUX01.DBF‘,
‘D:\oradata\wtest\UNDOTBS01.DBF‘,
‘D:\oradata\wtest\USERS01.DBF‘,
‘D:\oradata\wtest\EXAMPLE01.DBF‘,
‘D:\oradata\wtest\TBS01.DBF‘,
‘D:\oradata\wtest\UNDOTBS02.DBF‘,
‘D:\oradata\wtest\RMAN_TBS01.DBF‘
CHARACTER SET AL32UTF8;
ALTER DATABASE OPEN RESETLOGS;
ALTER TABLESPACE TEMP ADD TEMPFILE ‘D:\oradata\wtest\TEMP01.DBF‘
SIZE 30408704 REUSE AUTOEXTEND ON NEXT
655360 MAXSIZE 32767M;
将如上内容保存成ctl.sql
SQL>SQL> @D:\oradata\wtest\ctl.sql;
SQL> select status from v$instance;
STATUS
------------
OPEN
SQL> create spfile from pfile;
File created.
SQL> select open_mode from v$database;
OPEN_MODE
--------------------
READ WRITE
SQL> show parameter db_name
NAME
TYPE
VALUE
------------------------------------ -----------
------------------------------
db_name
string
WTEST
SQL> show parameter instance_name
NAME
TYPE
VALUE
------------------------------------ -----------
------------------------------
instance_name
string
wtest
SQL> show parameter control
NAME
TYPE
VALUE
------------------------------------ -----------
------------------------------
control_file_record_keep_time
integer
7
control_files
string
D:\ORADATA\WTEST\CONTROL01.CTL
, D:\ORADATA\WTEST\CONTROL02.C
TL
control_management_pack_access
string
DIAGNOSTIC+TUNING
至此DB_NAME也修改过来了。
win64 bit oracle11gR2修改SID和dbname
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原文地址：http://www.cnblogs.com/guys-hero/p/5661248.html
