The sections that follow describe consecutive data set organization and explain how to create, access, and update consecutive data sets.
In a data set with consecutive organization, records are organized solely on the basis of their successive physical positions. In other words, when the data set is created, records are written consecutively in the order in which they are presented. You can retrieve the records only in the order in which they were written.
The information in this chapter applies to files using the CONSECUTIVE option of the ENVIRONMENT attribute that are associated with either a native or DDM data set. PL/I Presentation Manager supports only native data sets.