oracle怎么修改库名,如何修改数据库名(ORACLE)

1.用oracle自带的工具nid改数据库名

在本例中，假设原来的数据库名为test,要改成testdb,原实例名(service_name,instance_name)test,要改成testdb.

nid是自带的工具，在oracle_home/bin目录中.以下方法假设登陆到数据库本机做。

1.1 sqlplus "sys/password as sysdba"

1.2 sql>shutdown immediate --先停掉数据库

1.3 sql>startup mount --nid需要在mount状态下才能做。

1.4sql>host nid target=sys/password dbname=new_dbname --nid是一个在操作系统下执行的命令，在sqlplus环境中用host 去调用操作系统环境下的命令。命令中，当你想将数据库名字改为TESTDB时，应写成dbname=testdb

1.5执行后程序会询问：

Change database ID and database name TEST to TESTDB? (Y/[N]) =>y

敲y确定。

之后程序会对控制文件，数据文件进行修改：

Control File C:ORACLEORADATATESTCONTROL01.CTL - modified

Control File C:ORACLEORADATATESTCONTROL02.CTL - modified

Control File C:ORACLEORADATATESTCONTROL03.CTL - modified

Datafile C:ORACLEORADATATEST YSTEM01.DBF - dbid changed, wrote new name

Datafile C:ORACLEORADATATESTUNDOTBS01.DBF - dbid changed, wrote new nam

Datafile C:ORACLEORADATATESTINDX01.DBF - dbid changed, wrote new name

Datafile C:ORACLEORADATATESTTOOLS01.DBF - dbid changed, wrote new name

Datafile C:ORACLEORADATATESTUSERS01.DBF - dbid changed, wrote new name

Datafile D:DATAFILEPORMALS_SPA.DBF - dbid changed, wrote new name

Datafile C:ORACLEORADATATESTOEM_REPOSITORY.DBF - dbid changed, wrote ne

name

Datafile D:DATAFILEPORMALS_SPA_01.DBF - dbid changed, wrote new name

Datafile C:ORACLEORADATATESTTEMP01.DBF - dbid changed, wrote new name

Control File C:ORACLEORADATATESTCONTROL01.CTL - dbid changed, wrote new

name

Control File C:ORACLEORADATATESTCONTROL02.CTL - dbid changed, wrote new

name

Control File C:ORACLEORADATATESTCONTROL03.CTL - dbid changed, wrote new

name

Database name changed to TESTDB.

Modify parameter file and generate a new password file before restarting.

Database ID for database TESTDB changed to 2321050327.

All previous backups and archived redo logs for this database are unusabl