How to generate DBC file in R12 EBS

How to generate DBC file in EBS R12?

java oracle.apps.fnd.security.AdminAppServer apps/apps ADD FNDNAM=apps GWYUID=applsyspub/pub TWO_TASK=DATABASE_NAME SECURE_PATH=$FND_TOP/secure GUEST_USER_PWD=guest/oracle APPS_JDBC_DRIVER_TYPE=THIN DB_HOST=db_host_name DB_PORT=db_port