oracle 更改 db_name 的方法
运行下面的命令，即可更改db_name 从haha 更改为test
>nid target=sys/gaokai@haha dbname=test
下面演示：
C:\Documents and Settings\andyleng>set ORACLE_SID=haha C:\Documents and Settings\andyleng>sqlplus /nolog SQL*Plus: Release 11.2.0.1.0 Production on Wed Nov 2 18:07:00 2011 Copyright (c) 1982, 2010, Oracle. All rights reserved. SQL> conn /as sysdba Connected to an idle instance. SQL> startup ORACLE instance started. Total System Global Area 778387456 bytes Fixed Size 1374808 bytes Variable Size 234882472 bytes Database Buffers 536870912 bytes Redo Buffers 5259264 bytes Database mounted. Database opened. SQL> show parameter name NAME TYPE VALUE ------------------------------------ ----------- ------------------------------ db_file_name_convert string db_name string haha db_unique_name string haha global_names boolean FALSE instance_name string haha lock_name_space string log_file_name_convert string service_names string haha SQL> create pfile from spfile; File created. SQL> shutdown immediate; Database closed. Database dismounted. ORACLE instance shut down. SQL> exit Disconnected from Oracle Database 11g Enterprise Edition Release 11.2.0.1.0 - Pr oduction With the Partitioning, OLAP, Data Mining and Real Application Testing options C:\Documents and Settings\andyleng>
C:\Documents and Settings\andyleng>set ORACLE_SID=haha
C:\Documents and Settings\andyleng>sqlplus /nolog
SQL*Plus: Release 11.2.0.1.0 Production on Wed Nov 2 18:08:40 2011
Copyright (c) 1982, 2010, Oracle. All rights reserved.
SQL> conn /as sysdba
Connected to an idle instance.
SQL> startup mount;
ORACLE instance started.
Total System Global Area 778387456 bytes
Fixed Size 1374808 bytes
Variable Size 234882472 bytes
Database Buffers 536870912 bytes
Redo Buffers 5259264 bytes
Database mounted.
SQL> exit
Disconnected from Oracle Database 11g Enterprise Edition Release 11.2.0.1.0 - Pr
oduction
With the Partitioning, OLAP, Data Mining and Real Application Testing options
C:\Documents and Settings\andyleng>nid target=sys/oracle@haha dbname=test
DBNEWID: Release 11.2.0.1.0 - Production on Wed Nov 2 18:11:10 2011
Copyright (c) 1982, 2009, Oracle and/or its affiliates. All rights reserved.
Connected to database HAHA (DBID=3533083211)
Connected to server version 11.2.0
Control Files in database:
D:\ORACLE\ORADATA\TEST\CONTROL01.CTL
D:\ORACLE\FLASH_RECOVERY_AREA\TEST\CONTROL02.CTL
Change database ID and database name HAHA to TEST? (Y/[N]) => y
Proceeding with operation
Changing database ID from 3533083211 to 2064306111
Changing database name from HAHA to TEST
Control File D:\ORACLE\ORADATA\TEST\CONTROL01.CTL - modified
Control File D:\ORACLE\FLASH_RECOVERY_AREA\TEST\CONTROL02.CTL - modified
Datafile D:\ORACLE\ORADATA\TEST\SYSTEM01.DB - dbid changed, wrote new name
Datafile D:\ORACLE\ORADATA\TEST\SYSAUX01.DB - dbid changed, wrote new name
Datafile D:\ORACLE\ORADATA\TEST\UNDOTBS01.DB - dbid changed, wrote new name
Datafile D:\ORACLE\ORADATA\TEST\USERS01.DB - dbid changed, wrote new name
Datafile D:\ORACLE\ORADATA\TEST\ATG_TBS01.DB - dbid changed, wrote new name
Datafile D:\ORACLE\ORADATA\TEST\ATG_LOBTBS01.DB - dbid changed, wrote new na
me
Datafile D:\ORACLE\ORADATA\TEST\TEMP01.DB - dbid changed, wrote new name
Control File D:\ORACLE\ORADATA\TEST\CONTROL01.CTL - dbid changed, wrote new
name
Control File D:\ORACLE\FLASH_RECOVERY_AREA\TEST\CONTROL02.CTL - dbid changed
, wrote new name
Instance shut down
Database name changed to TEST.
Modify parameter file and generate a new password file before restarting.
Database ID for database TEST changed to 2064306111.
All previous backups and archived redo logs for this database are unusable.
Database is not aware of previous backups and archived logs in Recovery Area.
Database has been shutdown, open database with RESETLOGS option.
Succesfully changed database name and ID.
DBNEWID - Completed succesfully.
C:\Documents and Settings\andyleng>ORADIM -del -sid haha
Instance deleted.
C:\Documents and Settings\andyleng>oradim -new -sid test
Instance created.
C:\Documents and Settings\andyleng>set ORACLE_SID=test
C:\Documents and Settings\andyleng>sqlplus /nolog
SQL*Plus: Release 11.2.0.1.0 Production on Wed Nov 2 18:12:50 2011
Copyright (c) 1982, 2010, Oracle. All rights reserved.
SQL> conn /as sysdba
Connected to an idle instance.
SQL> startup
ORACLE instance started.
Total System Global Area 778387456 bytes
Fixed Size 1374808 bytes
Variable Size 427820456 bytes
Database Buffers 343932928 bytes
Redo Buffers 5259264 bytes
Database mounted.
ORA-01589: must use RESETLOGS or NORESETLOGS option for database open
SQL> create spfile from pfile;
File created.
SQL> alter database open resetlogs;
Database altered.
SQL> show parameter name
NAME TYPE VALUE
------------------------------------ ----------- ------------------------------
db_file_name_convert string
db_name string test
db_unique_name string test
global_names boolean FALSE
instance_name string test
lock_name_space string
log_file_name_convert string
service_names string test
SQL>