drop database link EAS85
create database link EAS85
connect to EAS85 identified by eas85
using ‘(DESCRIPTION =(ADDRESS_LIST =(ADDRESS =(PROTOCOL = TCP)(HOST = 10.0.6.18)(PORT = 1521)))(CONNECT_DATA =(SERVICE_NAME = orcl)))‘;
原文：https://www.cnblogs.com/duomi/p/14320762.html