Using a Program-Described

WORKSTN File without a Format. . .Name340

 

Valid WORKSTN File Operations. . . . . . . . . . . . . . . . . . . .341

 

EXFMT Operation

 

.

. . . . . . . . . . . . . . .342. . . .

 

READ Operation . .

. . . . . . . . . . . . . . 342

 

WRITE Operation .

. . . . . . . . . . . . . . .342. . . .

 

Multiple-Device Files .

. . . . . . . . . . . . . . .342. . . .

 

Chapter 19. Example of an

Interactive

Application

 

. . . . . . . . . . .

345. .

 

Database Physical File. . . . . . . . . . . . . . . . . . . . . . . .345

 

Main

Menu

Inquiry. . . . . . . . . . . . . . . . . . . . . . . . . .346

 

MAINMENU: DDS

for

a

Display Device

.File. . . . . . . . . . . . .346. . .

 

CUSMAIN: RPG Source

 

 

. .

 

. . .

. . .

.

. . . . .347. . . .

 

File Maintenance . .

. . . . . . . . . . . . . . .349. . . .

 

CUSMSTL1: DDS

for

a

Logical

File

349

 

MNTMENU: DDS for a Display

 

Device

File. . . . . . . . . . . . . . .350. . .

 

CUSMNT: RPG Source

 

 

. . . . . . . . . . . . . .352. . . .

 

Search by Zip Code

358

 

CUSMSTL2: DDS

for

a

Logical

File

358

 

SZIPMENU: DDS

for

a

Display Device. .File. . . . . . . . . . . . .359. . .

 

SCHZIP: RPG Source

 

. . . . . . . . . . . . . . 361

 

Search and Inquiry by . Name. . . . . . . . . . . . . . . . . . . . .364

 

CUSMSTL3: DDS

for

a

Logical

File

364

 

SNAMMENU: DDS for a Display

 

Device

File. . . . . . . . . . . . . .365. . .

 

SCHNAM: RPG Source

 

 

. . . . . . . . . . . . . .366. . . .

 

 

 

Appendixes

. . . . . . . . . . . . . . . . . . . . . . . 371

 

Appendix

A.

Behavioral

Differences

Between

OPM

RPG/400

and

ILE

 

 

 

 

 

RPG for

AS/400

 

 

. . . . . . . . . . . . . . . . . . . . . . . . . .373

 

Compiling

 

 

. . . . . . . . . . . . . . . . . . 373

 

Running

 

. . . . . . . . . . . . . . . . . . .374. . . .

 

Debugging and Exception Handling. . . . . . . . . . . . . . . . . . .374

 

I/O

. . . . . . . . . . . . . . 375

 

DBCS Data in Character Fields

377

 

Appendix B. Using the RPG III to RPG

IV

Conversion

Aid

 

. . . . . . . .379

 

Conversion Overview

.

. . . . .

. . .

.

. . . . . 379

 

File Considerations .

. . . . . . . . . . . . . . 380

 

The

Log

File

381

 

Conversion

Aid

Tool

Requirements

381

 

What

the Conversion

Aid

Won't. . Do

382

 

Converting

Your

Source. . . . . . . . . . . . . . . . . . . . . . . .382

 

The

CVTRPGSRC

 

Command

 

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

383

 

Converting a Member Using the Defaults

387. . . .

 

Converting All Members in a

.File. . . . . . . . . . . . . . . . . .388

 

Converting

Some

Members

in

 

a File

388

 

Performing

a

 

Trial

Conversion

388

 

Obtaining

Conversion

Reports

389

 

Converting Auto Report Source Members

389. . . .

 

Converting

Source

Members

with

Embedded. SQL. . . . . . . . . . .390. .

 

Inserting Specification Templates. . . . . . . . . . . . . . . . . . .390

 

Converting

Source

from

a Data. .File

390

 

Example

of

Source

Conversion. . . . . . . . . . . . . . . . . . . . .390

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Contents

ix

Page 11
Image 11
IBM AS/400 manual Appendixes, Ile

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.