Learn PLI with Real Code Examples
Updated Nov 21, 2025
Performance Notes
Compiled PLI code is optimized for mainframe execution
Efficient for large-scale batch processing
Memory and file handling optimized for IBM OS
Low runtime overhead compared to interpreted languages
Suitable for high-volume transactional systems
Security Notes
Access control enforced at mainframe level
Proper data handling prevents batch processing errors
Type safety minimizes runtime failures
Legacy systems may lack modern security practices
Secure coding depends on disciplined program design
Monitoring Analytics
Check batch job logs
Monitor output datasets
Debug procedure errors
Trace record and table manipulations
Profile job performance for efficiency
Code Quality
Follow consistent naming for variables and procedures
Comment batch job logic clearly
Validate record and table manipulations
Unit test procedures when possible
Maintain modular, structured code