1. Database instance stop:
dbmcli –d<database_name> -u<user_name>,<password> db_stop
or
dbmcli -d <database_name> -u <user_name>,<password> db_offline
2. Delete the current database instance from the database server:
dbmcli -d <database_ name> -u <user_name>,<password> db_drop
This deletes the files of the database instance.