我从远端oracle视图中获取数据的过程

这里涉及到三个oracle对象，一个是客户的视图，一个是客户提供的中转站服务器上的oracle，一个是我们自己的开发机的oracle，最终我们开发使用自己开发机的oracle的数据来进行开发，开发完成后，将oracle源改为客户的视图源，将产品部署到客户提供的中转站上。并且中转站的oracle也已经不再需要，可以停掉，实际上web产品部署在另外一个节点，这个中转站提供计算处理程序的居住场所。下面介绍我接入开发数据的具体步骤，我是按表的形式进行导入导出，并且用到的是oracle的数据泵。
验证是否能够连接，假设用户密码都是xsc,远端ip是192.168.2.2，实例端口9010，实例名orcltyg
扫描实例端口： nmap 远端ip
sqlplus "xsc"/"xsc"@192.168.2.2:9010/orcltyg

本机静默安装oracle11g（略）

本机创建表空间和oracle用户，假设用户为xsc，数据表空间为xsc，temp表空间xsctemp
create temporary tablespace xsctemp tempfile '/opt/oracle/oradata/orcl/xsctemp.dbf' size 1000m autoextend on next 1000m maxsize unlimited extent management local;
create tablespace xsc logging datafile '/opt/oracle/oradata/orcl/xsc.dbf' size 1000m autoextend on next 1000m maxsize unlimited extent management local autoallocate segment space management auto;
create user xsc identified by xsc default tablespace xsc temporary tablespace xsctemp;
grant connect,resource,dba to xsc;

创建到远端192.168.2.2的dblink
create database link orcltyglink connect to xsc identified by "xsc" using '(DESCRIPTION = (ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.2.2)(PORT = 9010)) (CONNECT_DATA = (SERVER = DEDICATED)(SERVICE_NAME = ORCLTYG)))';
select * from xsjl@orcltyglink;

通过dblink连接远端视图选取数据创建本地的表xsjl
create table xsjl as select * from xsjl@orcltyglink;
选取一行来看
select * from xsjl where rownum<=1;

把它备份出来，并用ftp工具下载
mkdir /backup
chown -R oracle.oinstall /backup/
sqlplus / as sysdba
create or replace directory dir as '/backup/';
grant write,read on directory dir to xsc;
quit
nohup expdp xsc/xsc@orcl tables=xsjl dumpfile=xsjl.dmp logfile=xsjl.log directory=dir job_name=xsjl_job &

通过ftp或者sz下载，然后上传到开发的oracle主机上

还原到开发机的oracle中
sqlplus / as sysdba
create temporary tablespace xsctemp tempfile '/u01/app/oracle/oradata/consume/xsctemp.dbf' size 1000m autoextend on next 1000m maxsize unlimited extent management local;
create tablespace xsc logging datafile '/u01/app/oracle/oradata/consume/xsc.dbf' size 1000m autoextend on next 1000m maxsize unlimited extent management local autoallocate segment space management auto;
create user xsc identified by xsc default tablespace xsc temporary tablespace xsctemp;
grant connect,resource,dba to xsc;
quit
mkdir /u01/backup/
chown -R oracle.oinstall /u01/backup/
sqlplus / as sysdba
create or replace directory dir as '/u01/backup/';
grant write,read on directory dir to xsc;
quit
cd /u01/backup
rz [xsjl.dmp]
nohup impdp xsc/xsc dumpfile=xsjl.dmp logfile=xsjl.log directory=dir tables=xsjl job_name=xsjl_job &

验证
select * from xsjl where rownum<=1;