linux环境下oracle client安装和配置
oracle客户端的安装是非常简单的，关键在tns配置，我这里使用的rpm安装包，oracle本身就不是开源，那使用rpm安装时最简单的。
，先下载下面三个文件，注意版本最好一致。
oracle-instantclient-basic-10.2.0.4-1.i386.rpm
oracle-instantclient-sqlplus-10.2.0.4-1.i386.rpm
oracle-instantclient-devel-10.2.0.4-1.i386.rpm
2.
oracle-instantclient-basic-10.2.0.4-1.i386.rpm是基本的动态库、jar包，默认安装路径是：
oracle-instantclient-sqlplus-10.2.0.4-1.i386.rpm是客户端sqlplus安装包, 默认安装路径是：/usr/lib/oracle/10.2.0.4/client
oracle-instantclient-devel-10.2.0.4-1.i386.rpm是api接口文件,默认安装路径是：/usr/include/oracle/10.2.0.4/client
sudo rpm-avi oracle-instantclient-basic-10.2.0.4-1.i386.rpm
sudo rpm-avi oracle-instantclient-sqlplus-10.2.0.4-1.i386.rpm
sudo rpm-avi oracle-instantclient-devel-10.2.0.4-1.i386.rpm
4.
5. 测试连接
USERNAME/PASSWD@test_base
USERNAME.TABLENAME where accountid = 8401428;