Accessing Printer Devices

Table

23.

Results of the Presence or Absence of an Overflow Indicator

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

File

 

 

 

Output

Specifi-

 

 

 

 

 

 

 

 

 

 

Description

 

 

cations

Posi-

 

 

 

 

 

Action

 

 

 

 

Specifications

 

tions

21-29

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Positions

44-80

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

No

entry

 

No

entry

First

unused

overflow indicator used

to condi-

 

 

 

 

 

 

 

tion

skip

to

next

page

at overflow.

 

 

 

 

 

 

 

 

 

No

entry

 

Entry

 

Error at compile time; overflow indicator

 

 

 

 

 

 

 

dropped from output specifications. First

 

 

 

 

 

 

 

unused

overflow

indicator

used to condition

 

 

 

 

 

 

 

skip

to

next

page

at overflow.

 

 

 

 

 

 

 

 

 

OFLIND

(indi-

 

No

entry

Continuous

printing;

no overflow recognized.

cator)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

OFLIND

(indi-

 

Entry

 

Processes

normal

overflow.

 

 

 

cator)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Example of Printing Headings on Every Page

Figure 157 shows an example of the coding necessary for printing head every page: first page, every overflow page, and each new page t

because of a

change

in

control fields

(L2

is on). The first line a

to

be

printed

at

the

top of

a

new page

(skip

to

06) only

when

an

(OA

is

on

and

L2 is not on).

 

 

 

 

 

 

 

 

 

 

The

second

line

allows

printing

of

headings on

the

new

page

only

at

of

a

new control group (L2 is

on). This way, duplicate headings cau

and

OA

being on at the same

time do not occur. The second line allo

to

be

printed on the first page after the first record

is

read

always

causes

a

control

break

(L2

turns

on)

if control

fields

are sp

record.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

*.. 1 ...+... 2 ...+... 3 ...+... 4 ...+... 5 ...+... 6 ...+... 7 ...+... *

 

 

 

 

OFilename++DF..N01N02N03Excnam++++B++A++Sb+Sa+

 

 

 

 

OPRINT

H

OANL2

 

 

3

6

 

 

 

 

 

 

 

 

 

O..............N01N02N03Field+++++++++YB.End++PConstant/editword/DTforma￿t++

 

 

 

 

O

 

OR

L2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

O

 

 

 

 

 

 

 

8 'DATE'

 

 

 

 

 

 

 

 

O

 

 

 

 

 

 

 

18 'ACCOUNT'

 

 

 

 

 

 

 

O

 

 

 

 

 

 

 

28 'N A M E'

 

 

 

 

 

 

 

O

 

 

 

 

 

 

 

46 'BALANCE'

 

 

 

 

 

 

 

O*

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Figure

157.

Printing a Heading on Every Page

 

 

 

 

 

 

 

 

 

Example of Printing a Field on Every Page

Figure 158 on page 320shows the necessary coding for the printing of fields on every page; a skip to 06 is done either on an overflow c change in control level (L2). The NL2 indicator prevents the line from skipping twice in the same cycle.

Chapter 17. Accessing Externally Attached319Devices

Page 342 Page 344
Page 343
Image 343
IBM AS/400 manual Example of Printing Headings on Every, Example of Printing a Field on Every, OANL2, Account, Balance
Page 342 Page 344

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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