Analyzing Your Conversion. . . . . . . . . . . . . . . . . . . . . . 393. . . . . . .

Using the Conversion Report. . . . . . . . . . . . . . . . . . . . 394. . . . . .

Using the Log .File. . . . . . . . . . . . . . . . . . . . . . . . 396. . . . . . . .

Resolving Conversion Problems . . . . . . . . . . . . . . . . . . . . 398. . . . . .

Compilation

Errors

in

Existing RPG III. . .Code. . . . . . . . . . .398. . .

Unsupported RPG III Features. . . . . . . . . . . . . . . . . . . .398

Use

of

the

/COPY

Compiler

Directive. . . . . . . . . . . . . . . . .398. . . .

Use

of

Externally

Described Data. .Structures. . . . . . . . . . . .401. . .

Run-time Differences.

. . . . . . . . . . . . .

.403

Appendix C.

The

Create

Commands

 

. . . . . . . . . . . . . . . . .

405

Using

CL

Commands

 

. . . . . . . . . . . . . . . . . . . . . . . . .405

How to Interpret Syntax Diagrams

405

CRTBNDRPG Command

 

 

. . . . . . . . . . . . . .

 

406

Description of

the

CRTBNDRPG

Command. . . . . . . . . . . . . . .408. . .

CRTRPGMOD Command

 

 

. . . . . . . . . . . . . .

 

420

Description of the CRTRPGMOD command. . . . . . . . . . . . . . .422. . .

Appendix D.

Compiler Listings

 

. . . . . . . . . . . .

423

Reading

a

Compiler

Listing

424

Prologue

. . . . . . . . . . . . . . . . . .

424

Source Section

 

426

Additional Diagnostic Messages. . . . . . . . . . . . . . . . . . . .431

Output Buffer Positions

432

/COPY

 

Member Table

432

Compile-Time Data

 

.

. . . . . . . . . . . . . .

 

433

Key Field Information. . . . . . . . . . . . . . . . . . . . . . . .434

Cross-Reference Table

 

434

External References .List

435

Message Summary

 

.

. . . . . . . . . . . . . .

 

436

Final

Summary . . . . . . . . . . . . . . . . . . . . . . . . . . .436

Code Generation and Binding Errors

437

Bibliography

 

 

. . . . . . . . . . . . . . . . .

 

439

Index

. . . . . .

. . .

. . . . . . . . . .

.443

x ILE RPG for AS/400 Programmer's Guide

Page 12
Image 12
IBM AS/400 manual Copy, Index

AS/400 specifications

The IBM AS/400, now known as the IBM iSeries, is a midrange computer system that has been a cornerstone of enterprise computing since its introduction in 1988. Designed to provide a robust platform for business applications, the AS/400 is celebrated for its reliability, scalability, and integrated database capabilities.

One of the key features of the AS/400 is its Integrated Operating Environment, which blends hardware and software resources seamlessly. This integration allows businesses to execute diverse workloads, ranging from traditional applications to modern web-based services, all on a single platform. The operating system, OS/400 (now IBM i), offers a rich set of APIs and tools for developers, simplifying application development and management.

Another standout characteristic of the AS/400 is its built-in database, DB2 for i. This powerful relational database management system allows for efficient data handling and provides advanced features such as support for SQL, XML, and JSON, making it easier for businesses to manage their data and integrate it with other systems. The database's tight integration with the operating system enables high performance and security.

In terms of scalability, the AS/400 can accommodate small businesses as well as large enterprises, with the ability to support hundreds of users simultaneously. Its architecture allows for easy upgrades in hardware, meaning that organizations can scale their systems without replacing the entire infrastructure.

Security is another critical attribute of the AS/400. With a sophisticated security model, it offers built-in user authentication, access control, encryption, and auditing capabilities to protect data and applications from unauthorized access.

The AS/400 also supports multiple programming languages, including RPG, COBOL, Java, and PHP, giving organizations the flexibility to choose the development tools that best fit their needs. This diversity helps maintain legacy applications while also developing new ones that leverage modern technologies.

Moreover, the platform supports both traditional green-screen interfaces and modern graphical user interfaces, allowing organizations to transition smoothly into contemporary user experience paradigms.

Overall, the IBM AS/400 stands out as a resilient, flexible, and secure computing platform that enables organizations to effectively manage their business operations, streamline processes, and adapt to changing market demands. Its unique combination of integrated features and capabilities ensures that it remains relevant in today's fast-paced technology landscape.