1) create database link 你是用的庫名 connect to 需要連接的庫名 identified by CUSTOMER
using 'icbccsdb';
2)-- Create database link
create database link CIFDBLINK
connect to CIF i dentified by CIF
using '(DESCRIPTION =(ADDRESS = (PROTOCOL = TCP)(HOST = 192.0.0.1)(PORT = 1521))(CONNECT_DATA =(SERVER = DEDICATED)(SERVICE_NAME = iccsdb)))';