DBA_HIST_BUFFERED_SUBSCRIBERS displays historical information about the subscribers for all buffered queues in the instance.
| Column | Datatype | NULL | Description |
|---|---|---|---|
SNAP_ID |
NUMBER |
NOT NULL |
Unique snapshot ID |
DBID |
NUMBER |
NOT NULL |
Database ID for the snapshot |
INSTANCE_NUMBER |
NUMBER |
NOT NULL |
Instance number for the snapshot |
QUEUE_SCHEMA |
VARCHAR2(30) |
NOT NULL |
Owner of the queue |
QUEUE_NAME |
VARCHAR2(30) |
NOT NULL |
Name of the queue |
SUBSCRIBER_ID |
NUMBER |
NOT NULL |
Internal subscriber number (for identification) |
SUBSCRIBER_NAME |
VARCHAR2(30) |
Name of the subscriber | |
SUBSCRIBER_ADDRESS |
VARCHAR2(1024) |
Address of the subscribing agent | |
SUBSCRIBER_TYPE |
VARCHAR2(30) |
Type of subscriber:
|
|
STARTUP_TIME |
DATE |
NOT NULL |
Startup time of the instance |
LAST_BROWSED_SEQFoot 1 |
NUMBER |
Sequence number of the most recently browsed message for the subscriber (comparable to the number of messages in the V$STREAMS_APPLY_READER view) |
|
LAST_BROWSED_NUMFootref 1 |
NUMBER |
Internal Message number for the most recently browsed message for the subscriber | |
LAST_DEQUEUED_SEQFootref 1 |
NUMBER |
Sequence number of the most recently dequeued message for the subscriber (comparable to the number of messages in the V$STREAMS_APPLY_COORDINATOR view) |
|
LAST_DEQUEUED_NUMFootref 1 |
NUMBER |
Internal Message number for the most recently dequeued message for the subscriber | |
CURRENT_ENQ_SEQFootref 1 |
NUMBER |
Current sequence number of the most recently enqueued message for the subscriber | |
NUM_MSGS |
NUMBER |
Total number of outstanding messages currently enqueued in the buffered queue for the subscriber (includes the count of the messages overflowed to disk) | |
CNUM_MSGS |
NUMBER |
Cumulative total number of messages enqueued for the subscriber since the creation of the buffered queue | |
TOTAL_DEQUEUED_MSGFootref 1 |
NUMBER |
Total number of messages dequeued by the subscriber | |
TOTAL_SPILLED_MSG |
NUMBER |
Total number of spilled messages for the subscriber | |
EXPIRED_MSGSFootref 1 |
NUMBER |
Number of expired messages | |
MESSAGE_LAGFootref 1 |
NUMBER |
Message lag of the subscriber | |
ELAPSED_DEQUEUE_TIMEFootref 1 |
NUMBER |
Total time spent in dequeue (in hundredths of a second) | |
DEQUEUE_CPU_TIMEFootref 1 |
NUMBER |
Total CPU time for dequeue (in hundredths of a second) | |
LAST_DEQUEUE_TIMEFootref 1 |
TIMESTAMP(3) |
Last message dequeue time | |
OLDEST_MSGIDFootref 1 |
RAW(16) |
Message ID of the oldest message | |
OLDEST_MSG_ENQTMFootref 1 |
TIMESTAMP(3) |
Enqueue time of the oldest message |
Footnote 1 This column is available starting with Oracle Database 11g Release 2 (11.2.0.2).