DBA_HIST_PERSISTENT_QUEUES

DBA_HIST_PERSISTENT_QUEUES displays STREAMS AQ persistent queues historical statistics information. This view contains snapshots of V$PERSISTENT_QUEUES.

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
`QUEUE_ID`	`NUMBER`	`NOT NULL`	Identifier for the queue
`FIRST_ACTIVITY_TIME`	`TIMESTAMP(6)`		First queue activity time since database startup
`ENQUEUED_MSGS`	`NUMBER`		Number of messages enqueued
`DEQUEUED_MSGS`	`NUMBER`		Number of messages dequeued Note: This column will not be incremented until all the subscribers of the message have dequeued the message and its retention time has elapsed.
`BROWSED_MSGS`^Foot 1	`NUMBER`		Number of messages that have been browsed
`ELAPSED_ENQUEUE_TIME`	`NUMBER`		Total time (in hundredths of a second) spent doing enqueue
`ELAPSED_DEQUEUE_TIME`	`NUMBER`		Total time (in hundredths of a second) spent doing dequeue
`ENQUEUE_CPU_TIME`^Footref 1	`NUMBER`		Total CPU time for enqueue (in hundredths of a second)
`DEQUEUE_CPU_TIME`^Footref 1	`NUMBER`		Total CPU time for dequeue (in hundredths of a second)
`AVG_MSG_AGE`^Footref 1	`NUMBER`		Average age of messages in the queue
`DEQUEUED_MSG_LATENCY`^Footref 1	`NUMBER`		Last dequeued message latency (in seconds)
`ELAPSED_TRANSFORMATION_TIME`	`NUMBER`		Total time (in hundredths of a second) spent doing transformation
`ELAPSED_RULE_EVALUATION_TIME`	`NUMBER`		Total time (in hundredths of a second) spent doing rule evaluation
`ENQUEUED_EXPIRY_MSGS`	`NUMBER`		Number of messages enqueued with expiry
`ENQUEUED_DELAY_MSGS`	`NUMBER`		Number of messages enqueued with delay
`MSGS_MADE_EXPIRED`	`NUMBER`		Number of messages expired by time manager
`MSGS_MADE_READY`	`NUMBER`		Number of messages made ready by time manager
`LAST_ENQUEUE_TIME`	`TIMESTAMP(6)`		Last message enqueue time
`LAST_DEQUEUE_TIME`	`TIMESTAMP(6)`		Last message dequeue time
`LAST_TM_EXPIRY_TIME`	`TIMESTAMP(6)`		Last time message was expired by time manager
`LAST_TM_READY_TIME`	`TIMESTAMP(6)`		Last time message was made ready by time manager
`ENQUEUE_TRANSACTIONS`^Footref 1	`NUMBER`		Number of enqueue transactions
`DEQUEUE_TRANSACTIONS`^Footref 1	`NUMBER`		Number of dequeue transactions
`EXECUTION_COUNT`^Footref 1	`NUMBER`		Number of executions of the dequeue cursor

^Footnote 1This column is available starting with Oracle Database 11g Release 2 (11.2.0.2).