create public database link CMS
connect to cmsxb identified by sph
using ‘(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.0.3)(PORT = 1521))
)
(CONNECT_DATA =
(SERVICE_NAME = cmsxb)
)
)‘;select * from pub_emp@cms
原文：http://blog.51cto.com/11804035/2072288