Equating a Name with a Field, Expression, or Command

Displaying Attributes of a Field

You can display the attributes of a field using the Attribute (ATTR) command. The attributes are the size (in bytes) and type of the va recorded in the debug symbol table.

Figure 104

shows

some examples of displaying field

attributes based

on

in Figure 105 on

page 212. Additional examples are

also provided in

the

debugger

online

help.

 

 

>ATTR NullPtr

TYPE = PTR, LENGTH = 16 BYTES

>ATTR ZonedD3D2

TYPE = ZONED(3,2), LENGTH = 3 BYTES

>ATTR Bin4D3

TYPE = BINARY, LENGTH = 2 BYTES

>ATTR Int3

TYPE = INTEGER, LENGTH = 1 BYTES

>ATTR Int5

TYPE = INTEGER, LENGTH = 2 BYTES

>ATTR Unsigned10

TYPE = CARDINAL, LENGTH = 4 BYTES

>ATTR Unsigned20

TYPE = CARDINAL, LENGTH = 8 BYTES

>ATTR Float4

TYPE = REAL, LENGTH = 4 BYTES

>ATTR Float8

TYPE = REAL, LENGTH = 8 BYTES

>ATTR Arry

TYPE = ARRAY, LENGTH = 6 BYTES

>ATTR tablea

TYPE = FIXED LENGTH STRING, LENGTH = 3 BYTES

>ATTR tablea(2)

TYPE = FIXED LENGTH STRING, LENGTH = 3 BYTES

>ATTR BigDate

TYPE = FIXED LENGTH STRING, LENGTH = 10 BYTES

>ATTR DS1

TYPE = RECORD, LENGTH = 9 BYTES

>ATTR SpcPtr

TYPE = PTR, LENGTH = 16 BYTES

>ATTR String

TYPE = FIXED LENGTH STRING, LENGTH = 6 BYTES

>ATTR *IN02

TYPE = CHAR, LENGTH = 1 BYTES

>ATTR DBCSString

TYPE = FIXED LENGTH STRING, LENGTH = 6 BYTES

Figure 104. Examples of Displaying the Attributes of Fields based on DBGEX

Equating a Name with

a

Field,

Expression,

or Command

 

 

 

 

 

 

 

 

You

can

use

the EQUATE debug command to equate

a

name

with

a field,

expression

or

debug command for shorthand use.

You

can

then

use

that

alone or within another expression. If you

use

it

within another

expr

value

of

 

the

name is determined before the

expression

is evaluated.

stay

active

until

a debug

session ends or

a

name

is

removed.

 

To equate

a

name

with a

field, expression

or

 

debug

command,

type:

210 ILE RPG for AS/400 Programmer's Guide

Page 233 Page 235
Page 234
Image 234
IBM AS/400 manual Displaying Attributes of a Field, Or Command, Equating a Name with, Expression
Page 233 Page 235

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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