一.下载
http://www.oracle.com/technetwork/database/enterprise-edition/downloads/index.html以下两网址来源此官方下载页网。
win 32位操作系统 下载地址: http://download.oracle.com/otn/nt/oracle11g/112010/win32_11gR2_database_1of2.zip http://download.oracle.com/otn/nt/oracle11g/1120