Database connection cancellation suffix to REGRESS.RDBMS.DEV.US.ORACLE.COM domain name __ Database

Today, someone suggested that Dblink's suffix domain name is very unsightly regress. Rdbms. DEV. US. Oracle.com, in fact, I also think is, but there has been no power to search how to solve, today, people said, this is the task, work, so I searched for a while and then on their own machine to do Test, the results are as follows: C:\Documents and Settings\administrator>sqlplus/as SYSDBA
Sql*plus:release 10.2.0.1.0-production on Sunday December 13 18:03:43 2009
Copyright (c) 1982, the, Oracle. All rights reserved.

Connect to: Oracle Database 10gEnterprise Edition release 10.2.0.1.0-production with the partitioning, OLAP and Data Mining options
Sql>update global_name SET global_name= ' DEMO '; sql>commit;
Reboot the system after the update completes
Sql>shutdown IMMEDIATE sql>startup Sql>select * from Global_name; Global_name--------------------------------
DEMO
View DatabaseConnection sql> Select Db_link from Dba_db_links;
Db_link---------------------------------------------------
Link_stat1. Regress. Rdbms. DEV. US. Oracle.com
Inside the Dblink or with domain name, rebuild a look sql>create DATABASE LINK link_test CONNECT to user identified by password USING ' DEMO '; View sql> Select Db_link from Dba_db_links again;
Db_link---------------------------------------------------
Link_test LINK_STAT1. Regress. Rdbms. DEV. US. Oracle.com
This means that the new data connection will not remove the domain name suffix.
It seems that the future is to give yourself a little pressure or else this is really going to dawdle.