3.Input to Binary fields is converted to integer. The DDS file specification must declare zero decimal positions (for example, “xB 0”, where x is 1-9).

4.ILE C converts hex DDS field data to character fields. Since the input stream to QtmhCvtDB() is a text string, the “hex” data would be converted from text to character fields. Therefore, using the A (Alphanumeric) field type to obtain the same conversion.

Required parameter group

Qualified database file name

Input:CHAR(20)

The input variable containing the name of the database file defining field names and data types for the keywords anticipated in the input to the CGI program. Typically, the database file is generated using DDS to define the fields corresponding to the keywords anticipated in the CGI inputs. The first 10 characters contain the database file name, and the second 10 characters contain the library name.

Input string

INPUT:CHAR(*)

The input variable containing the string of CGI input parameters to be parsed. When the environment variable REQUEST_METHOD indicates that the method is GET, characters up to the first ? are ignored. The string must meet the format requirements for CGI input keyword strings.

Length of input string

INPUT:BINARY(4)

The input variable containing the length of the character string that contains the CGI input parameters to be parsed. The length of the string must be greater than 0.

Response variable

OUTPUT:CHAR(*)

The output variable which is to contain the structure mapped according to the database file describing the input parameters anticipated by the CGI program.

Length of response available

INPUT:BINARY(4)

The input variable containing the total length of the buffer into which the CGI input parameters will be parsed.

Length of response

OUTPUT:BINARY(4)

The output variable that contains the length of the response. If the response variable is too small to contain the entire response, this parameter will be set to the size that is required to contain the entire response.

Response code

OUTPUT:BINARY(4)

A code that indicates the status of the request.

0All keywords have been translated according the database file.

Chapter 2. Application Programming Interfaces 31

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IBM AS/400E manual Qualified database file name, Input string, Length of input string, Response variable, Response code
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AS/400E specifications

The IBM AS/400E, now more commonly known as IBM i, is a robust and versatile midrange server that has been designed to provide a comprehensive computing solution for businesses of all sizes. First introduced in the late 1980s, the AS/400 series has undergone multiple enhancements and rebranding, with the AS/400E being one of the notable iterations. This powerful platform is closely associated with IBM's commitment to reliability, scalability, and integrated business solutions.

One of the main features of the AS/400E is its highly integrated architecture that combines hardware and software into a cohesive system. This integration allows for seamless operations, reducing the complexity typically associated with managing disparate systems. The system is powered by IBM's proprietary OS/400 operating system, which has evolved into IBM i, featuring advanced capabilities like object-oriented programming, integrated database management, and security features that are essential for enterprise environments.

A key characteristic of the AS/400E is its robust database support, primarily through the use of DB2 for i. This integrated database management system enables efficient data handling and retrieval, facilitating real-time business analytics and reporting. Furthermore, the platform supports a variety of programming languages, including RPG, COBOL, and Java, making it flexible for developers who require diverse tools for application development.

The AS/400E is also known for its exceptional reliability and uptime, making it a preferred choice for critical business applications in industries such as finance, healthcare, and manufacturing. This reliability is backed by advanced error detection and correction mechanisms, as well as redundancy features that help prevent data loss and minimize downtime.

In terms of scalability, the AS/400E can effortlessly expand to accommodate growing business demands. Organizations can increase processing power by adding more resources without significant disruption. This scalability, combined with the system’s built-in virtualization capabilities, allows businesses to optimize resource usage and streamline operations.

Security is another defining feature of the AS/400E. The platform incorporates various layers of security measures, including user authentication, encryption, and comprehensive auditing capabilities, ensuring that sensitive business data is protected against unauthorized access.

Overall, the IBM AS/400E remains a powerful tool in the enterprise computing landscape, providing businesses with an integrated, reliable, and secure solution for their technological needs. Its enduring popularity is a testament to its capability to evolve with changing business requirements while maintaining its core attributes of high performance and stability.
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