下载 篇：
首先：进入oracle主页 https://www.oracle.com/index.html

oracle主页：

进入11g下载页面

http://www.oracle.com/technetwork/database/enterprise-edition/downloads/index.html

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安装篇

一、去掉“I wish to receivesecurity updates via My Oracle Support”复选框，点击“Next”