1: 停数据库

SQL*Plus: Release 11.2.0.3.0 Production on Mon Apr 9 15:22:13 2012

Enter user-name: /as sysdba

Connected to:
Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options

SQL> shutdown immediate
Database closed.
Database dismounted.
ORACLE instance shut down.
SQL>

2: 停监听和EM

[oracle@cloud ~]$ lsnrctl stop

[oracle@cloud ~]$ emctl stop dbconsole

3：停止http服务

[root@cloud ~]# service httpd stop

4：删除安装目录

[root@cloud ~]#rm -rf /u01/app/oracle

5: 将/usr/bin下的文件删除

{root@cloud oracle]# cd /usr/local/bin
[root@cloud bin]# ls
coraenv dbhome oraenv
[root@cloud bin]# rm -rf *

6: 将/etc/oraInst.loc删除
[root@cloud etc]# rm /etc/oraInst.loc

7：将oracle用户和用户组删除
[root@cloud etc]# userdel -r oracle
[root@cloud etc]# groupdel oinstall
[root@cloud etc]# groupdel dba

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