V$SUBSCR_REGISTRATION_STATS definition in Oracle Database 11.2
V$SUBSCR_REGISTRATION_STATS
select
reg_id, -- REG_ID NUMBER
num_ntfns, -- NUM_NTFNS NUMBER
num_grouping_ntfns, -- NUM_GROUPING_NTFNS NUMBER
num_ntfns_current_group, -- NUM_NTFNS_CURRENT_GROUP NUMBER
last_ntfn_start_time, -- LAST_NTFN_START_TIME TIMESTAMP(3) WITH TIME ZONE
last_ntfn_sent_time, -- LAST_NTFN_SENT_TIME TIMESTAMP(3) WITH TIME ZONE
total_emon_latency, -- TOTAL_EMON_LATENCY NUMBER
emon#, -- EMON# NUMBER
all_emon_servers, -- ALL_EMON_SERVERS RAW(2000)
total_payload_bytes_sent, -- TOTAL_PAYLOAD_BYTES_SENT NUMBER
num_retries, -- NUM_RETRIES NUMBER
total_plsql_exec_time, -- TOTAL_PLSQL_EXEC_TIME NUMBER
last_err, -- LAST_ERR VARCHAR2(90)
last_err_time, -- LAST_ERR_TIME TIMESTAMP(3) WITH TIME ZONE
last_update_time, -- LAST_UPDATE_TIME TIMESTAMP(3) WITH TIME ZONE
num_pending_ntfns -- NUM_PENDING_NTFNS NUMBER
from
gv$subscr_registration_stats
where
inst_id = USERENV('Instance')