RHEL AS 5 X86_64如何卸载Oracle 10g
今天在实验室机房要把Oracle 10.2.01卸载掉，然后把Oracle 10.1.03装上，由于缺少经验所以弄了很久才把数据库给卸载掉，最后成功
今天在实验室机房要把Oracle 10.2.01卸载掉，然后把Oracle 10.1.03装上，由于缺少经验所以弄了很久才把数据库给卸载掉，最后成功了还是很有成就感的。
以root账户登录系统，打开浏览器，在地址栏输入 :1158/em 然后以数据库管理员的身份登录，，关闭数据库和监听。新建终端，输入 #xhost + 回车，然后再输入 #export DISPLAY=.0 再新建一个终端，切换到Oracle账户，进入Oracle安装源文件所在目录，$cd database/ 然后打开数据库配置助手 $dbca 根据提示将自动删除数据库；输入$cd $Oracle_HOME/oui/bin/ $./runInstaller 利用Oracle 反安装程序卸载 Oracle 软件。
然后利用 root 用户删除
rm –rf $oracle_HOME (彻底删除主目录)
rm –rf /etc/oraInst.loc
rm –rf /etc/oratab
rm –rf /etc/oracle
rm –rf /var/opt/oracle
rm –rf /tmp/oracle
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