Delete a Linux Oracle Database

Delete an Oracle database in a Linux operating system in detail:

1. Disable ORACLE Server and background processes
PS-Ef | grep ora
Turn off the database
Shutdown immediate

2. Disable the listener.
LSNRCTL status
If it is enabled, execute LSNRCTL stop to disable it.

3. delete the file under $ ORACLE_HOME.
Delete a database using the dbca graphic interface

4. Delete the three folders dbhome oraenv coraenv under/usr/local/bin.
Rm-F dbhome
Rm-F oraenv
Rm-F coraenv

5. Delete oratab and orainst. Loc under/etc.
Rm-F oratab
Rm-F orainst. Loc

6. Delete orclfmap under/OPT
Rm-fr orclfmap

7. [Oracle @ RedHat ~] $ ENV | grep ora
Oracle_sid = ora10g
Oracle_base =/u01/APP/Oracle
ORACLE_HOME =/u01/APP/oralce/product/10.2.0/db_1
Delete all files in the preceding directory
Rm-fr/u01

8. Delete oracle users, oinstall and DBA
Oracle users must be deleted first
Userdel-r Oracle
Groupdel oinstall
Groupdel DBA