oracle_dblink配置

说明：一下是未配置本地服务的dblink。

前提：   授权>  grant create public database link,create database link to myAccount;

1.创建dblink

SQL> create database link demob connect to dblink identified by dblink using '(DESCRIPTION =(ADDRESS = (PROTOCOL = TCP)(HOST = 10.100.25.14)(PORT = 1521))(CONNECT_DATA =(SERVER = DEDICATED)(SERVICE_NAME = orcl)))';

Database link created.

参数说明>

demob --link_name

dblink -- 远程数据库的用户账号与密码

(DESCRIPTION =(ADDRESS = (PROTOCOL = TCP)(HOST = 10.100.25.14)(PORT = 1521))(CONNECT_DATA =(SERVER = DEDICATED)(SERVICE_NAME = orcl)))  -- 远程数据库的tnsnames.ora

------------------------------------------------------------------------------------------------------------------------------

2.使用dblink

SQL> select * from dblink.dblink@demob;

ID
----------
1
2

参数说明

@demob  --dblink_name

___________________________________________________________________________________________________

3.查看dblink

select owner,object_name from dba_objects  where object_type='DATABASE LINK';

或者

select * from dba_db_links;

—————————————————————————————————————————————————————————————————

4.删除db_link

DROP PUBLIC DATABASE LINK linkfwq;  或者 DROP  DATABASE LINK linkfwq