方法一：

方法二：

grant create database link to pdahd;

grant create session,connect resource to pdahd;

create user pdahd identified by pdahd default tablespace PDA_DATA;--这只是我记录一下

create database link to_foss connect to pkp identified by pkp120foss using 192.168.10.120/fossdb;

创建好了之后可验证一下

select * from dual@to_foss;

select waybill_no from pkp.tsr_waybill@to_foss;