Defining Functions › Function Types, Message Types, and Function Fields › DRV Function Field › Example of a Derived Function Field

Example of a Derived Function Field

An example of a DRV field is a total value field that contains the result of the calculation of the Quantity multiplied by Price fields. Other examples include retrieval of data from an access path.

For example, rather than having a virtual field in a file, you could use a derived function field that includes a RTVOBJ to read the file and return a value to the field.