Oracle 11g下载地址：
oracle Database 11g Release 1(11.1.0.6.0) 下载
http://www.oracle.com/technology/software/products/database/index.html
文档：http://www.oracle.com/technology/global/cn/documentation/index.html


Oracle 10g下载地址
http://www.oracle.com/technology/global/cn/software/products/database/oracle10g/index.html
包括Oracle 10g 数据库企业/标准版，Oracle 10g 数据库 第2版下载地址、Oracle 10g 数据库 第1版下载地址


Oracle下载－Oracle 9i下载
Oracle9i 数据库下载,包括Oracle9i Release 2 (9.2.0.2)下载,Oracle9i Release 2 (9.2.0.1)下载
http://www.oracle.com/technology/global/cn/software/products/oracle9i/index.html

Oracle 9i for Windows下载
oracle 9i 3CD Download：
http://download.oracle.com/otn/nt/oracle9i/9201/92010NT_Disk1.zip
http://download.oracle.com/otn/nt/oracle9i/9201/92010NT_Disk2.zip
http://download.oracle.com/otn/nt/oracle9i/9201/92010NT_Disk3.zip