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PL/I programming: fundamentals course


In this practical course participants learn to use the PL/I programming language in order to write and maintain applications in PL/I. The participants will learn to write, test and execute programs.

After having followed this course:

  • participants know the complete PL/I syntax;
  • participants are able to develop, to debug and to execute PL/I programs in a z/OS environment.

The debugging and interpretation of compilation listings is also explained.

Main topics

  • General introduction:

History - PL/I program: first introduction

  • Different aspects of PL/I:

Declaration of data elements

Complex data structures

RECORD input/output


External and internal subroutines

Function manipulation

Exception handling

Treatment of files for input and output (sequential files)

  • Compiler and Linker options - Run:

The complete application development cycle from Source to Load Module is treated, some attention is given to the PL/I compiler and the Linkage Editor. The most frequent compiler options are discussed.

The execution stage including guide lines for testing and debugging are treated in detail.


Intended for

Programmers who want to write PL/I programs.


Participants should have some programming experience or otherwise have followed the course Programming fundamentals). Some familiarity with the TSO/ISPF environment is required (see course ISPF/PDF basics).

Training method

Classroom instruction with exercises (60% of the time).

Course leader

Guido Indesteege.


5 days.


No public sessions are currently scheduled. We will be pleased to set up an on-site course or to schedule an extra public session (in case of a sufficient number of candidates). Interested ? Please contact ABIS.

Global score

4.4/5 (based on 85 evaluations)


j'ai aimé suivre ce cours, le prof explique super bien et reste à l'écoute de nos questions. (, )
très bonne, beaucoup d'explications claires et bien expliquées. (, )
Prima voor developers met voorkennis (gestructureerd) programmeren & mainframe (, )
Uitstekende cursus. Straightforward & to the point. Docent toont duidelijk ervaring en engageert zich om vragen, ook degene die slechts licht gerelateerd aan het onderwerp zijn, te beantwoorden. (, )
Très bon et bien structuré. (, )
Parfait! Acceuil impeccable, organisation remarquable. le contenu répondait tout à fait à nos attentes. (, )
bien structuré, bien donné, impeccable (, )
Parfait, il est complet et avance pas à pas pour apprendre facilement quelque soit le niveau de l'élève. (, )
Malgré que je débutais en PL/I, j'ai réussi à tout comprendre (, )
Awesome (, )

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