用dblink,可以完成,上网搜索一下教程。
-- Create database link
create public database link db_scott
connect TO scott identified by tiger
using '(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.1.21)(PORT = 1521))
)
(CONNECT_DATA =
(SERVICE_NAME = ora10g)
)
)';
select * FROM emp@db_scott;--可以将emp@db_scott建成同义词或者视图。
可以用plsqldeveloper 等工具建立。
追问这个方法效率最高,谢谢