Ubuntu 64bit 安装Oracle XE整理
Oracle Application Express是一种通过配置web页面参数即可开发Oracle数据库应用的工具，设计思想很独特，APEX的应用程序实际上只
Oracle XE是Oracle数据库家族的Express快速版，完全免费，数据库的大小最高4GB（不包括系统空间占用的近1GB空间），内存限制在1G，，CPU限制为1个，主要面向开发者和小型数据库应用。
Oracle Application Express是一种通过配置web页面参数即可开发Oracle数据库应用的工具，设计思想很独特，APEX的应用程序实际上只是数据表中的数据，可以任意导入导出，部署和开发都相当快速。
Ubuntu是现在最方便的Linux发行版，升级容易，错误也很少，Ubuntu 64位版本上一样可以跑32位版本的应用程序，比如Oracle Express Database，就只有32位的版本，但是一样可以安装运行，下面是安装Oracle XE 10.2和APEX 3.1.1方法：
1. 安装32位C语言库：
sudo apt-get install libc6-i386
2. 下载相关安装文件：
wget -c http://oss.oracle.com/debian/dists/unstable/non-free/binary-i386/oracle-xe-universal_10.2.0.1-1.1_i386.deb
3. 将Oracle XE和所需的异步IO库强制安装到64位平台上：
dpkg -i --force-architecture libaio_0.3.104-1_i386.deb
dpkg -i --force-architecture oracle-xe-universal_10.2.0.1-1.1_i386.deb
安装时会提示需要至少1024MB交换空间，ubuntuone.cn不过如果你内存是2GB的话，是可以安全忽略的。
4. 配置Oracle XE：
sudo /etc/init.d/oracle-xe configure
不要变动缺省值，我发现如果http端口选择非8080是不工作的，至此Oracle XE安装完毕，下面开始安装APEX 3.1.1。
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