Drop an oracle database

Whether the database is primary db or standby db we can efficiently drop the database according to its service name.

The following steps we need to perform: 

1. [oracle@rnddb /]$ ps -ef | grep pmon

2. kill -9 process_id

4. RMAN> CONNECT TARGET SYS@test1

5. RMAN> STARTUP FORCE MOUNT
6. RMAN> SQL 'ALTER SYSTEM ENABLE RESTRICTED SESSION';
7. RMAN> DROP DATABASE INCLUDING BACKUPS NOPROMPT;

Finally wait a while to finish the job Recovery Manager complete.