V$REPLQUEUE

Contains statistics about the replication deferred transactions queue. All values are stored since the start of the current database instance.

Column	Datatype	Description
TXNS_ENQUEUED	NUMBER	Number of transactions enqueued in the deferred transactions queue.
CALLS_ENQUEUED	NUMBER	Number of calls enqueued into the deferred transactions queue.
TXNS_PURGED	NUMBER	Number of transactions purged from the deferred transactions queue.
LAST_ENQUEUE_TIME	DATE	Date when the last transaction was enqueued into the deferred transaction queue. NULL if no transactions have been enqueued into the deferred transaction queue since the instance started.
LAST_PURGE_TIME	DATE	Date when the last transaction was purged from the deferred transaction queue. NULL if no transactions have been purged from the deferred transaction queue since the instance started.