某些系统是因为Oracle数据库的名称不是很规范，如果你不想对Oracle数据库重新创建的话，你可以使用Oracle自带的工具即nid来修改Oracle数据库的名称。在整个修改过程中，对控制文件和数据文件进行修改，且重置dbid，建议在修改前对数据进行备份。
在本例子中，我们将Oracle数据库中的instance_name和db_name从“oratest”修改为“test”,数据库版本为10.2.0.3。
查看数据库信息。
- SQL> show parameter instance_name
- NAME TYPE VALUE
- stance_name string ORATEST
- SQL> show parameter db_name
- NAME TYPE VALUE
- db_name string ORATEST
- SQL>show parameter service_name
- NAME TYPE VALUE
- db_name string ORATEST
- SQL>select dbid from v$database;
- DBID
- 3213300265
修改前Oracle数据库名为"oratest",dbid="3213300265"。接下来修改数据库名称，先停止数据库，然后启动到mount状态下，使用nid工具修改dbname。
- SQL> shutdown immediate
- Database closed.
- Database dismounted.
- ORACLE instance shut down.
- SQL> startup mount
- Total System Global Area 268435456 bytes
- Fixed Size 1261272 bytes
- Variable Size 117440808 bytes
- Database Buffers 146800640 bytes
- Redo Buffers 2932736 bytes
- Database mounted.
- SQL> host;
- $ nid target="sys/password" dbname=test
- DBNEWID: Release 10.2.0.3.0 - Production on Wed Feb 4 11:12:36 2009
- Copyright (c) 1982, 2005, Oracle. All rights reserved.
- Connected to database ORATEST (DBID=3213300265)
- Connected to server version 10.2.0
- Control Files in database:
- /u02/oradata/test/control01.ctl
- /u02/oradata/test/control02.ctl
- /u02/oradata/test/control03.ctl
- Change database ID and database name ORATEST to TEST? (Y/[N]) => y
- Proceeding with operation
- Changing database ID from 3213300265 to 1976074532
- Changing database name from ORATEST to TEST
- Control File /u02/oradata/test/control01.ctl - modified
- Control File /u02/oradata/test/control02.ctl - modified
- Control File /u02/oradata/test/control03.ctl - modified
- Datafile /u02/oradata/test/system01.dbf - dbid changed, wrote new name
- Datafile /u02/oradata/test/undotbs01.dbf - dbid changed, wrote new name
- Datafile /u02/oradata/test/sysaux01.dbf - dbid changed, wrote new name
- Datafile /u02/oradata/test/users01.dbf - dbid changed, wrote new name
- Datafile /u02/oradata/test/example01.dbf - dbid changed, wrote new name
- Datafile /u02/oradata/test/temp01.dbf - dbid changed, wrote new name
- Control File /u02/oradata/test/control01.ctl - dbid changed, wrote new name
- Control File /u02/oradata/test/control02.ctl - dbid changed, wrote new name
- Control File /u02/oradata/test/control03.ctl - dbid changed, wrote new name
- NID-00600: Internal Error - [28] [12152] [0] [0]
- Change of database name and ID failed during validation -database is intact.
- DBNEWID - Completed with validation errors.
以上的相关内容就是对Oracle数据库中如何使用nid的修改数据库名的介绍，望你能有所收获。
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