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 | 
| 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_SPILLED_MSG | NUMBER | Total number of spilled messages for the subscriber |