创建DBLink和同义词

--创建全局link

create public database 

　　link pms connect to pms 

　　identified by pms using 'TESTDB'

CREATE PUBLIC DATABASE LINK 数据库链接名 CONNECT TO 用户名 IDENTIFIED BY 密码 USING ‘本地配置的数据的实例名’;

  

--测试本地的新数据库链接名是否可用

select * from project@pms;

  

--创建同义词

create public synonym ProjectExtendInfo for ProjectExtendInfo@pms;

create public synonym Project for Project@pms;

  

--清除时的操作

drop public synonym Project;

drop public synonym ProjectExtendInfo;

DROP PUBLIC DATABASE LINK pms;