Derived fields are variables that do not exist in a data source and are created from one or more existing fields, even across different data sources. In many processes, the configuration window includes a Derived Fields button that you can use to create a new variable for querying, segmenting, sorting, calculating, or providing output to a table.

You can make derived fields that you create explicitly available to a subsequent process by enabling the Make Persistent option when you create it.

In general, derived fields available to a process are listed in the Derived Fields folder. Derived fields are available only for the process in which they were created. If you have not created any derived fields in a process, no Derived Fields folder appears in the list.

To use a derived field in another non-subsequent process, store the derived field expression in the Stored Derived Fields list. Inclusion in the Stored Derived Fields list makes a derived field available for all processes and all flowcharts.