DBA_HIST_PERSISTENT_SUBS displays STREAMS AQ persistent queue subscribers historical statistics information. This view contains snapshots of V$PERSISTENT_SUBSCRIBERS.
| 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 | 
| SUBSCRIBER_NAME | VARCHAR2(30) | Name of the subscriber | |
| SUBSCRIBER_ADDRESS | VARCHAR2(1024) | Address of the subscribing agent | |
| SUBSCRIBER_TYPE | VARCHAR2(30) | Type of the subscriber: 
 | |
| FIRST_ACTIVITY_TIME | TIMESTAMP(6) | First subscriber activity time since database startup | |
| ENQUEUED_MSGS | NUMBER | Number of messages enqueued since FIRST_ACTIVITY_TIME | |
| DEQUEUED_MSGS | NUMBER | Number of messages dequeued since FIRST_ACTIVITY_TIME | |
| EXPIRED_MSGS | NUMBER | Number of messages expired since FIRST_ACTIVITY_TIME | |
| DEQUEUED_MSG_LATENCY | NUMBER | Last dequeued message latency (in seconds) | |
| LAST_ENQUEUE_TIME | TIMESTAMP(6) | Timestamp of the last enqueued message | |
| LAST_DEQUEUE_TIME | TIMESTAMP(6) | Timestamp of the last dequeued message |