Input File Definition

Input File Definition commands describe the physical characteristics and attributes of the data files input to the Reporting Facility program.

FILE <INPUT>: Identifies and describes an input data file and its physical characteristics and attributes
COPYDD: Instructs the Reporting Facility compiler to retrieve the record/element structure from CA Datacom Datadictionary
DEFINE: Defines a single addressable unit, scalar variable, or array element that resides in the data record of the previously defined file

Note the following:

An array is a scalar variable that occurs multiple times, in contiguous locations, within the GSA or the input record area.
A scalar variable is a single data occurrence located either in the General Storage Area (GSA) or the input record area. You must assign attributes describing the type of occurrence and give it a location referencing the field name associated with it. Scalar variables are the smallest addressable unit in a Reporting Facility program.