This section describes some model variations and other strategies you can use to implement your replication system design with a version of no-subscription request function earlier than 15.1.
A basic primary copy model that allows remote sites to make changes to primary data without accessing the primary database directly.
Pending tables – a strategy used with no-subscription request functions in versions earlier than 15.1 that allows users to see the results of updates to primary data before the update has been returned to the replicate site.