Backchaining
In backchaining, the system checks upstream along a data flow where backchaining is enabled to see if more recent data is available. You create a backchain data flow by defining a backchain-enabled Execution Setup for each executable along the data flow, and submitting the Execution Setup for execution.
If the system finds more recent data anywhere in the data flow where backchaining is enabled, it runs executable objects in the data flow starting at the point with more recent data in order to feed the most recent data into the program being executed.
Oracle Clinical Data Extract Load Sets (both Oracle and SAS) allow the system to interpret data currency in the source system so that a backchain can reach as far as the source tables or data sets in Oracle Clinical. If more current data exists in the source system, the backchain process triggers the execution of the Load Set(s) to load the more recent data into Oracle LSH.