Learn PLI with Real Code Examples

PLI source code (.pli files)

Compiled using IBM mainframe PLI compiler

Executable object code for mainframe environments

Integrated runtime libraries for I/O and system calls

Batch job control through mainframe operating system

Parse PLI source code

Compile procedures and modules into object code

Submit jobs via JCL to mainframe OS

Runtime handles file and batch operations

Monitor execution and output for correctness

Procedural decomposition

Record and table-based data structures

Modular procedures for reuse

Batch processing control flow

Integration with legacy mainframe services

Legacy banking batch systems

Insurance claim processing

Government administrative applications

Enterprise reporting systems

Data migration and integration with modern systems

Structured and modular programming

Optimized for mainframe batch processing

Static typing for reliability

Efficient memory and file handling

Focused on business and enterprise workflows

Modularize procedures for reusability

Keep arrays and tables manageable

Optimize batch job processing

Maintain proper file and memory management

Design for long-running mainframe workloads

Port PLI code to COBOL or modern PL/I-compatible languages

Adapt batch jobs for modern mainframe tools

Replace outdated data handling practices

Test records and arrays for consistency

Verify job outputs against legacy results