我从远端oracle视图中获取数据的过程

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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。

  1. 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

  2. 本机静默安装oracle11g(略)

  3. 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;

    createtablespacexscloggingdatafile'/opt/oracle/oradata/orcl/xsc.dbf'size1000mautoextendonnext1000mmaxsizeunlimitedextentmanagementlocalautoallocate segmentspacemanagementauto;

    createuserxscidentifiedbyxscdefaulttablespacexsctemporarytablespacexsctemp;

    grantconnect,resource,dbatoxsc;

  4. 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;

  5. 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 whererownum<=1;

  6. 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 &

  7. 通过ftp或者sz下载,然后上传到开发的oracle主机上

  8. 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;

    createtablespacexscloggingdatafile'/u01/app/oracle/oradata/consume/xsc.dbf'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 &

  9. 验证

    select * from xsjl whererownum<=1;

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