准备：

1、下载对应版本的oracle-instantclient（我这里是11.2.0.1.0）

http://www.oracle.com/technetwork/database/features/instant-client/index-097480.html

2、安装

rpm -ivh oracle-instantclient11.2-basic-11.2.0.1.0-1.x86_64.rpm

3、配置环境变量

export LD_LIBRARY_PATH=/usr/lib/oracle/11.2/client64/lib:$LD_LIBRARY_PATH
export PATH=/usr/lib/oracle/11.2/client64/bin:$PATH

4、开始你的开发(我们用python)

开发：

python连接oracle数据库需要cx_Oracle

1、下载

http://sourceforge.net/projects/cx-oracle/

2、安装

我下载rpm包，安装很简单

rpm -ivh cx_Oracle-5.1.2-11g-py26-1.x86_64.rpm

3、开始你的开发吧

Python 2.6.6 (r266:84292, Jan 22 2014, 09:42:36)
[GCC 4.4.7 20120313 (Red Hat 4.4.7-4)] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> import cx_Oracle
>>>