1. Use SQL * PLUS to stop a database
Copy codeThe Code is as follows:
$ Sqlplus/nolog
SQL> connect/as sysdba
SQL> shutdown [immediate]
SQL> exit
2. Stop Listener
Copy codeThe Code is as follows:
$ Lsnrctl stop
3. Stop the HTTP service
Copy codeThe Code is as follows:
# Service httpd stop
4. Use su or log on to the root again (if you want to reinstall it, You can retain the oracle user, saving you the need to enter environment variables)
5. Delete the installation directory
Copy codeThe Code is as follows:
# Rm-rf/u01/app/oracle/
6. delete files under/usr/bin.
Copy codeThe Code is as follows:
# Rm/usr/local/bin/dbhome
# Rm/usr/local/bin/oraenv
# Rm/usr/local/bin/coraenv
7. delete/etc/oratab
Copy codeThe Code is as follows:
# Rm/etc/oratab
8. delete/etc/oraInst. loc
Copy codeThe Code is as follows:
# Rm/etc/oraInst. loc
9. Delete the oracle user (if you want to reinstall it, You can not delete it)
Copy codeThe Code is as follows:
# Userdel-r oracle
10. Delete the user group (to reinstall it, Do not delete it)
Copy codeThe Code is as follows:
# Groupdel oinstall
# Groupdel dba
11. Delete the startup Service
Copy codeThe Code is as follows:
# Chkconfig -- del dbora
After the restart, the Oracle database in Linux has been completely deleted !!!