File Maintenance

Delete, and Display modes. The fields are defined as output/input (B 38). The fields are protected when Display or Delete mode is selecte

(DSPATR(PR)).

The CSTBLD record

provides

only

input fields

(I

in position

a

new

record.

 

 

 

 

 

 

 

The

HDRSCN

record

format contains

the

constant 'Customer

File

Maintenance'.

The

ERRMSG

keyword

defines the

messages

to be displayed if an error

The CA keywords define the function

keys

that can be used and assoc

function

keys with

indicators

in

the

RPG

program.

 

 

CUSMNT: RPG Source

*****************************************************************

*

PROGRAM NAME:

CUSMNT

 

 

 

*

* RELATED FILES:

CUSMSTL1 (LF)

 

*

*

 

 

 

MNTMENU

(DSPF)

 

*

*

DESCRIPTION:

THIS PROGRAM SHOWS A CUSTOMER MASTER

*

*

 

 

 

MAINTENANCE PROGRAM USING A WORKSTN FILE.

*

*

 

 

 

THIS PROGRAM ALLOWS THE USER TO ADD, UPDATE,

*

*

 

 

 

DELETE

AND

DISPLAY CUSTOMER RECORDS.

*

*

 

 

 

PF3 IS

USED TO QUIT THE PROGRAM.

*

*****************************************************************

FCUSMSTL1

UF A E

 

K

DISK

 

 

FMNTMENU

CF

E

 

 

WORKSTN

 

 

C

CSTKEY

 

KLIST

 

 

 

 

C

 

 

 

KFLD

 

 

CUST

 

********************************************************************

*

MAINLINE

 

 

 

 

*

********************************************************************

C

 

 

 

MOVE

 

'DISPLAY '

MODE

 

C

 

 

 

EXFMT

 

HDRSCN

 

 

C*

 

 

 

 

 

 

 

 

C

 

 

 

DOW

 

NOT *IN03

 

 

C

 

 

 

EXSR

 

SETMOD

 

 

C*

 

 

 

 

 

 

 

 

C

CUST

 

 

IFNE

 

*ZERO

 

 

C

MODE

 

 

CASEQ

 

'ADD'

ADDSUB

 

C

MODE

 

 

CASEQ

 

'UPDATE'

UPDSUB

 

C

MODE

 

 

CASEQ

 

'DELETE'

DELSUB

 

C

MODE

 

 

CASEQ

 

'DISPLAY'

INQSUB

 

C

 

 

 

ENDCS

 

 

 

 

C

 

 

 

ENDIF

 

 

 

 

C*

 

 

 

 

 

 

 

 

C

 

 

 

EXFMT

 

HDRSCN

 

 

C

 

 

 

ENDDO

 

 

 

 

C

 

 

 

MOVE

 

*ON

*INLR

 

 

 

 

 

 

 

Figure

175 (Part

1

of 3).

Source for module CUSMNT

 

352 ILE RPG for AS/400 Programmer's Guide

Page 375 Page 377
Page 376
Image 376
IBM AS/400 manual Cusmnt RPG Source, Record Format contains Constant Customer File Maintenance
Page 375 Page 377

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.
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