Procedure Definition Language Concepts and Language Elements › Data Definition Conventions

Data Definition Conventions

CA Ideal application programs use data from a variety of sources. This data includes:

• Working data
• Parameter data
• The logical structures of a relational database as defined through dataview definitions
• The record structures of a sequential file as defined through dataview definitions
• The record structures of a VSAM file as defined through dataview definitions

When CA Ideal uses any of this data, it is defined in similar ways.

The Creating Programs Guide contains explanations of how working data for CA Ideal programs and parameter data for both CA Ideal and non‑ideal subprograms is defined. The structures used in these explanations closely resemble the way in which dataviews appear to CA Ideal users.

For information about how CA Ideal applications use dataviews, see the FOR Statement in this guide. For more information about how CA Ideal uses dataviews, see the Creating Dataviews Guide.