Oa-Og, Ov | IBM AS/400 guide

removing

observability

RPG

IV (continued)

RENAME

keyword

266

overview

renaming

field

names

266

unsupported RPG

III

features

398

renaming

fields

266

(return)

indicator

renaming record-format names 266

See return

(RT)

indicator

REPLACE

parameter

run-time

array

CRTBNDRPG

command

58,

415

allocating

storage

during run-time 119

CRTRPGMOD

command

run-time job attributes

replacing modules in a program 87

See *JOBRUN

list

messages

run-time

errors,

correcting with a compiler listing 68

adding

108

run-time

inquiry

messages,

replying

to 108

changing

109

run-time storage, managing 113

replying to run-time inquiry messages 108

running

program

requirements of Conversion Aid 381

See

alsoprogram/procedure

call

reserved

words

differences between ILE RPG and OPM

*CANCL

237

RPG/400

374

*DETC

237

from

menu-driven

application 106

*DETL

237

in the OPM default activation group 111

*GETIN

237

overview

103

*OFL

237

using a user-created command 108

*TOTC

237

using

the

CALL

command

103

*TOTL

237

resulting

indicators

(01-99, H1-H9,

OA-OG, OV,

L1-L9,

LR,

U1-U8,

KA-KN, KP-KY, RT)

See

alsoindividual

operation

codes

sample

programs

error

indicators

227

See examples

resume

point

237

scope

Retrieve

Operational

Descriptor

Information

files

(CEEDOD)

screen design aid (SDA) 106

example

139

argument

operational

descriptors

139

externally

described

file

retry on a record lock timeout 276

description

285

RETURN (return to caller) operation code

referencing a partial key 286

returning

without

ending

154

valid

286

role in abnormal end 153

program-described file 288

role in normal end 152

SECLVL

parameter

386

return

(RT)

indicator

SEQ

file

example

327

used to end a program/procedure 152, 153, 154

return points, specifying in ENDSR 237

file operation codes allowed 326

return

status

parameter

328

general

description 326

return

value

processing

chart

326

returning

using

expressions

134

restrictions

326

RETURNCODE

data

area

variable-length

326

returning from a called main procedure 152

sequence

checking

returning from a called procedure 152

input

specifications

271

returning from a main procedure 152

sequential

file

290

returning from a subprocedure 154

sequential-by-key processing

returning using ILE bindable APIs 155

examples

293

returning

without

ending

154

general

discussion

293

rolldown

command

key

334

sequential-only processing 292, 293

rollup

command

key

334

sequential-within-limits processing

root

source

view,

creating

167

examples

301

RPG IV

general

discussion

300

See

alsoILE

RPG

service program

adding to a debug session 172

behavioral differences between RPG III 373

converting

23,

25,

379

binder

language

460 ILE RPG for AS/400 Programmer's Guide

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.

IBM AS/400 manual Oa-Og, Ov

Models: AS/400

See

OA-OG, OV,

See

See

460 ILE RPG for AS/400 Programmer's Guide

AS/400 specifications