GV$BUFFERED_SUBSCRIBERS definition in Oracle Database 11.2
GV$BUFFERED_SUBSCRIBERS
select
s.inst_id, -- INST_ID NUMBER
s.queue_id, -- QUEUE_ID NUMBER
q.queue_schema, -- QUEUE_SCHEMA VARCHAR2(30)
q.queue_name, -- QUEUE_NAME VARCHAR2(30)
s.subscriber_id, -- SUBSCRIBER_ID NUMBER
s.subscriber_name, -- SUBSCRIBER_NAME VARCHAR2(30)
s.subscriber_address, -- SUBSCRIBER_ADDRESS VARCHAR2(1024)
s.protocol, -- PROTOCOL NUMBER
s.subscriber_type, -- SUBSCRIBER_TYPE VARCHAR2(30)
q.startup_time, -- STARTUP_TIME DATE
s.last_browsed_seq, -- LAST_BROWSED_SEQ NUMBER
s.last_browsed_num, -- LAST_BROWSED_NUM NUMBER
s.last_dequeued_seq, -- LAST_DEQUEUED_SEQ NUMBER
s.last_dequeued_num, -- LAST_DEQUEUED_NUM NUMBER
s.current_enq_seq, -- CURRENT_ENQ_SEQ NUMBER
s.num_msgs, -- NUM_MSGS NUMBER
s.cnum_msgs, -- CNUM_MSGS NUMBER
s.total_dequeued_msg, -- TOTAL_DEQUEUED_MSG NUMBER
s.total_spilled_msg, -- TOTAL_SPILLED_MSG NUMBER
s.expired_msgs, -- EXPIRED_MSGS NUMBER
s.message_lag, -- MESSAGE_LAG NUMBER
s.elapsed_dequeue_time/10000, -- ELAPSED_DEQUEUE_TIME NUMBER
s.dequeue_cpu_time/10000, -- DEQUEUE_CPU_TIME NUMBER
s.last_dequeue_time, -- LAST_DEQUEUE_TIME TIMESTAMP(3) WITH TIME ZONE
s.oldest_msgid, -- OLDEST_MSGID RAW(16)
s.oldest_msg_enqtm -- OLDEST_MSG_ENQTM TIMESTAMP(3)
from
x$buffered_subscribers s,
x$buffered_queues q
where
s.inst_id = q.inst_id and s.queue_id = q.queue_id and bitand(q.flags, 16) = 0