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1.使用SQL*PLUS停止数据库
[oracle@dg2 ~]$ sqlplus log SQL> connect / as sysdba SQL> shutdown immediate SQL> shutdown immediate Database closed. Database dismounted. ORACLE instance shut down. SQL> exit
2.停止监听listener
[oracle@dg2 ~]$ lsnrctl stop LSNRCTL for Linux: Version 11.2.0.4.0 - Production on 23-DEC-2016 14:44:52 Copyright (c) 1991, 2013, Oracle. All rights reserved. Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=dg1)(PORT=1521))) The command completed successfully
3.停止HTTP服务
[root@dg2 ~]# service httpd stop Stopping httpd: [ OK ] [root@dg2 ~]#
4.用su或者重新登录到root(如果重新安装可以保留oracle用户)
5.将安装目录删除
[root@dg2 ~]# rm -rf /u01/app/oracle/ [root@dg2 ~]# rm -rf /u01/app/oraInventory/
6.将/usr/bin下的文件删除
[root@dg2 ~]# rm -rf /usr/local/bin/dbhome [root@dg2 ~]# rm -rf /usr/local/bin/oraenv [root@dg2 ~]# rm -rf /usr/local/bin/coraenv
7.将/etc/oratab删除
[root@dg2 ~]# rm /etc/oratab
8.将/etc/oraInst.loc删除
[root@dg2 ~]# rm /etc/oraInst.loc
9.将oracle用户删除(若要重新安装,可以不删除)
[root@dg2 ~]# userdel -r oracle
10.将用户组删除(若要重新安装,可以不删除)
[root@dg2 ~]# groupdel oinstall [root@dg2 ~]# groupdel dba
11.将启动服务删除
[root@dg2 ~]# chkconfig
到此为止重启后，Linux系统下的Oracle数据库已完全删除了！