Oracle Database 11g Release 1(11.1.0.6.0)Standard Edition,Standard Edition One,and Enterprise Edition
http://www.oracle.com/technology/software/products/database/oracle11g/111060_win32soft.html
Oracle Database 11g Release 2(11.2.0.1.0)Standard Edition,Standard Edition One, and Enterprise Edition
http://www.oracle.com/technology/software/products/database/oracle11g/112010_win32soft.html
Oracle 11g 下载地址：
http://download.oracle.com/otn/nt/oracle11g/win32_11gR1_database.zip不需要注册，直接复制到迅雷或其他下载软件中即可下载。