Differences Between OPM RPG/400

and

ILE RPG

 

 

 

¹

The

user

has not specified that a transparency check should be

 

by

the

compiler

 

 

In

ILE

RPG,

if

there

are

two consecutive apostrophes enclosed with

and

shift-in control characters inside a character literal, the apos

be

considered

as a

single

apostrophe. A pair of apostrophes inside

literal

will

only

be

considered as a single apostrophe if

they

are

within shift-out and

shift-in control characters.

 

 

 

 

3. In ILE RPG, if you want

to

avoid the

checking

of

literals for

sh

(that

is,

you

do

not want a shift-out

character

to

be

interpreted

you

should

 

specify

the entire literal

as a hexadecimal

literal. For

you

have

a

literal

'AoB' where 'o' represents a shift-out

control

ch

should

code

this literal

as

X'C10EC2'.

 

 

 

 

 

378 ILE RPG for AS/400 Programmer's Guide

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IBM AS/400 manual Differences Between OPM RPG/400
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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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