1.查看数据库当前设置

SQL> select * from v$version;

BANNER
----------------------------------------------------------------
Oracle9i Enterprise Edition Release 9.2.0.1.0 - Production
PL/SQL Release 9.2.0.1.0 - Production
CORE    9.2.0.1.0       Production
TNS for 32-bit Windows: Version 9.2.0.1.0 - Production
NLSRTL Version 9.2.0.1.0 - Production
 
SQL> show parameter name

NAME                                 TYPE        VALUE
------------------------------------ ----------- -------------------
db_file_name_convert                 string
db_name                              string      eyglev
global_names                         boolean     FALSE
instance_name                        string      eyglev
lock_name_space                      string
log_file_name_convert                string
oracle_trace_collection_name         string
oracle_trace_facility_name           string      oracled
plsql_native_make_file_name          string
service_names                        string      eyglev

2.Shutdown数据库

SQL> connect sys/orasys as sysdba

Connected.

SQL> shutdown immediate

Database closed.
Database dismounted.
ORACLE instance shut down.

3.Startup mount

SQL> startup mount

ORACLE instance started.
Total System Global Area 135338868 bytes
Fixed Size 453492 bytes
Variable Size 109051904 bytes
Database Buffers 25165824 bytes
Redo Buffers 667648 bytes
Database mounted.

4. 使用NID更改

SQL> host

Microsoft Windows 2000 [Version 5.00.2195]
(C) 版权所有 1985-2000 Microsoft Corp.

C:\>nid target=sys/orasys dbname=eyglen
DBNEWID: Release 9.2.0.1.0 – Production
Copyright (c) 1995, 2002, Oracle Corporation.  All rights reserved.
Connected to database EYGLEV (DBID=677189177)
Control Files in database:
E:\ORACLE\ORADATA\EYGLEN\CONTROL01.CTL
E:\ORACLE\ORADATA\EYGLEN\CONTROL02.CTL
E:\ORACLE\ORADATA\EYGLEN\CONTROL03.CTL
Change database ID and database name EYGLEV to EYGLEN? (Y/[N]) => Y
Proceeding with operation
Changing database ID from 677189177 to 3955758099
Changing database name from EYGLEV to EYGLEN
Control File E:\ORACLE\ORADATA\EYGLEN\CONTROL01.CTL – modified
Control File E:\ORACLE\ORADATA\EYGLEN\CONTROL02.CTL – modified
Control File E:\ORACLE\ORADATA\EYGLEN\CONTROL03.CTL – modified
Datafile E:\ORACLE\ORADATA\EYGLEN\SYSTEM01.DBF - dbid changed, ...
Datafile E:\ORACLE\ORADATA\EYGLEN\UNDOTBS01.DBF - dbid changed, ...
Datafile E:\ORACLE\ORADATA\EYGLEN\CWMLITE01.DBF - dbid changed, ...
Datafile E:\ORACLE\ORADATA\EYGLEN\DRSYS01.DBF - dbid changed, ...
Datafile E:\ORACLE\ORADATA\EYGLEN\INDX01.DBF - dbid changed, ...
Datafile E:\ORACLE\ORADATA\EYGLEN\ODM01.DBF - dbid changed, ...
Datafile E:\ORACLE\ORADATA\EYGLEN\TOOLS01.DBF - dbid changed, ...
Datafile E:\ORACLE\ORADATA\EYGLEN\USERS01.DBF - dbid changed, ...
Datafile E:\ORACLE\ORADATA\EYGLEN\XDB01.DBF - dbid changed, ...
Datafile E:\ORACLE\ORADATA\EYGLEN\EYGLE.DBF - dbid changed, ...
Datafile E:\ORACLE\ORADATA\EYGLEN\TEMP01.DBF - dbid changed, ...
Control File E:\ORACLE\ORADATA\EYGLEN\CONTROL01.CTL - dbid changed, ...
Control File E:\ORACLE\ORADATA\EYGLEN\CONTROL02.CTL - dbid changed, ...
Control File E:\ORACLE\ORADATA\EYGLEN\CONTROL03.CTL - dbid changed, ...
Database name changed to EYGLEN.
Modify parameter file and generate a new password file before restarting.
Database ID for database EYGLEN changed to 3955758099.
All previous backups and archived redo logs for this database are ...
Shut down database and open with RESETLOGS option.
Succesfully changed database name and ID.
DBNEWID - Completed succesfully.

5.Shutdown database

SQL> shutdown immediate
ORA-01109: database not open
Database dismounted.
ORACLE instance shut down.

6.修改初始化参数文件、spfile文件(init.ora/spfile.ora)

###########################################
instance_name=eyglen
#instance_name=eyglev
###########################################
db_domain=”"
db_name=eyglen
# db_name=eyglev
###########################################

7.重建spfile文件

如果你没有使用spfile,当然无需重建,跳至8

SQL> startup pfile=E:\Oracle\admin\eyglen\pfile\init.ora

ORACLE instance started.
Total System Global Area  135338868 bytes
Fixed Size                   453492 bytes
Variable Size             109051904 bytes
Database Buffers           25165824 bytes
Redo Buffers                 667648 bytes
ORA-01991: invalid password file 'e:\oracle\...\PWDeyglen.ORA'
 
SQL> CREATE SPFILE='E:\Oracle\Ora9iR2\database\SPFILEEYGLEN.ORA' FROM
2  PFILE='E:\Oracle\admin\eyglen\pfile\init.ora';

File created.

8.重建口令文件

SQL> host
Microsoft Windows 2000 [Version 5.00.2195]
(C) 版权所有 1985-2000 Microsoft Corp.

C:\>orapwd file=E:\Oracle\...\PWDeyglen.ORA password=oracle entries=5

9.shutdown数据库

如果不使用spfile,则可以跳至10

SQL> shutdown immediate
ORA-01109: database not open
Database dismounted.
ORACLE instance shut down.

10.Startup mount,resetlogs打开

SQL> startup mount
ORACLE instance started.
Total System Global Area  135338868 bytes
Fixed Size                   453492 bytes
Variable Size             109051904 bytes
Database Buffers           25165824 bytes
Redo Buffers                 667648 bytes
Database mounted.

SQL> alter database open resetlogs
2  /

Database altered.

11.修改后的参数

SQL> show parameter name

NAME                                 TYPE        VALUE
------------------------------------ ----------- ------------------
db_file_name_convert                 string
db_name                              string      eyglen
global_names                         boolean     FALSE
instance_name                        string      eyglen
lock_name_space                      string
log_file_name_convert                string
oracle_trace_collection_name         string
oracle_trace_facility_name           string      oracled
plsql_native_make_file_name          string
service_names                        string      eyglen

12.对数据库做个全备份

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