SRTSEQ/ALTSEQ

Output Spooling

Output

spooling

is

valid for batch or interactive jobs. The

descript

is specified

in

the RPG

program

by the file name contains

the spec

spooling

as shown

in the

following

diagram:

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Spooled

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

File

 

 

 

 

 

 

 

 

 

 

 

 

 

RPG program

QPRINT

File name = QPRINT

SPOOL (*YES)

QUEUE (QPRINT)

Device = PRINTER

 

Execution Time

Start

Printer writer

Start Printer writer Time

Device

Spooling

Queue

QPRINT

Figure

138. Output Spooling Example

 

 

 

 

 

File

override commands can be used at run time to override the spo

specified

in the file description, such as the

number of

copies t

tion,

AS/400

spooling support

allows

you to

redirect

a

file

after the

run.

You

can direct the

same

printed

output to

a

different device

SRTSEQ/ALTSEQ in an

RPG

 

Program

versus

a

DDS

File

 

 

 

 

 

 

 

 

 

 

 

 

 

When

a

keyed

file

is

created

using

SRTSEQ

and

LANGID,

 

the

 

SRTSEQ spec

is

used when

comparing

character

keys

in the file during CHAIN,

SETLL,

READE

and READPE operations. You do not

have

to

 

specify

the

same,

or

SRTSEQ

value

when

creating

the

RPG

program

or module.

 

 

 

 

 

 

When a value for SRTSEQ is specified

on CRTBNDRPG or CRTRPGMOD, then all

character comparison operations in the

program

will

use

 

this

SRTSEQ.

Thi

affects the comparisonall fields,of

including

key

fields,

fields

from

other

fields

declared

in

the

program.

 

 

 

 

 

 

 

 

 

 

 

 

 

You

should

decide

whether

to use SRTSEQ

for

your

RPG

program

based

you

want operations such as IFxx, COMP,

and

SORTA,

to

work

on

your

ch

data,

not

on

what

was specified

when

creating

your

files.

 

 

 

Chapter 15. General File Considerations279

Page 303
Image 303
IBM AS/400 manual Output Spooling, Program Versus

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.