Oracle中dblink的创建与删除

查询数据库中有哪些dblink连接

select * from dba_objects where object_type='DATABASE LINK';

 删除公有的EMIS_PRODUCTOIN连接

drop public database link EMIS_PRODUCTION;

 创建公有的EMIS_PRODUCTION连接

create public database link EMIS_PRODUCTION connect to EMIS_FRAME identified by EMIS_FRAME using '(DESCRIPTION =
(ADDRESS_LIST =(ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.1.101)(PORT = 1521)))
(CONNECT_DATA = (SERVICE_NAME = testdb))
)';

 删除EMIS_PRODUCTION连接

drop database link EMIS_PRODUCTION;

 创建EMIS_PRODUCTION连接

create database link EMIS_PRODUCTION connect to EMIS_FRAME identified by EMIS_FRAME using '(DESCRIPTION =
(ADDRESS_LIST =(ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.1.101)(PORT = 1521)))
(CONNECT_DATA = (SERVICE_NAME = testdb))
)';

测试是否可用

select * from EMIS_FRAME.sys_menu@EMIS_PRODUCTION;