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Oracle® Database Reference
12c Release 1 (12.1)

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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
DBID NUMBER NOT NULL Database ID for the snapshot
INSTANCE_NUMBER NUMBER NOT NULL Instance number for the snapshot
QUEUE_SCHEMA VARCHAR2(128) NOT NULL Owner of the queue
QUEUE_NAME VARCHAR2(128) NOT NULL Name of the queue
SUBSCRIBER_ID NUMBER NOT NULL Internal subscriber number
SUBSCRIBER_NAME VARCHAR2(128)   Name of the subscriber
SUBSCRIBER_ADDRESS VARCHAR2(1024)   Address of the subscribing agent
SUBSCRIBER_TYPE VARCHAR2(128)   Type of the subscriber:
  • PROXY - Propagation subscriber

  • SUBSCRIBER - Normal subscriber

  • RECIPIENT - Recipient

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
AVG_MSG_AGE NUMBER   Average age of messages in the queue
BROWSED_MSGS NUMBER   Number of messages that have been browsed
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
ELAPSED_DEQUEUE_TIME NUMBER   Total time spent in dequeue (in hundredths of a second)
DEQUEUE_CPU_TIME NUMBER   Total CPU time for dequeue (in hundredths of a second)
DEQUEUE_TRANSACTIONS NUMBER   Number of dequeue transactions
EXECUTION_COUNT NUMBER   Number of executions of the dequeue index cursor
CON_DBID NUMBER   The database ID of the PDB for the sampled session
CON_ID NUMBER   The ID of the container that CON_DBID identifies. Possible values include:
  • 0: This value is used for rows containing data that pertain to the entire CDB. This value is also used for rows in non-CDBs.

  • 1: This value is used for rows containing data that pertain to only the root

  • n: Where n is the applicable container ID for the rows containing data