Explain the use of varying keyword in rpgle. How does this affect the declaration of character variables in the RPGLE program in the AS400 system? Please provide an example of using the VARYING keyword in the RPG program and what are the ...Read more
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What is an array in AS400? Why we use it. Please explain the different types of arrays in RPG programming with examples. How do we define an array in an RPG program and how do we use arrays to process data ...Read more
Sometimes we observe session and device errors when working with display files in the RPG program. How can we resolve this session and device error and what caused this error to occur? Please provide examples of common session and device errors ...Read more
What is a module in AS400? Why do we create modules in ILE RPG programming, and why do we need them? How does a module differ from program and service programs? What are the different types of modules? Do we need ...Read more
How can we create the binding directory in as400? What do they store, and why do we use them in RPG programming? Is there any benefit of using them? What are the commands used with the binding directory and how ...Read more
Why do we use the program status data structure (PSDS) in the RPG program? How do we declare it in RPG? Please provide examples for it. How do we do error handling using PSDS in an RPG program and what ...Read more
Why do we use procedure prototype (PR) and procedure Interface (PI) in the RPGLE program? Is this the replacement of *ENTRY parameters in the RPG program? Provide an example of a simple program that makes use of PR and PI for creating ...Read more
Explain the data area concept and its usage in the AS400 applications. Please also mention the different types of data areas available in AS400. How do we use data areas in RPG and CL programs? How do we use data areas for ...Read more
How do we define data structures? Why do we use it and what are the different types of data structures in AS400? How do I define different data structures in the RPG program and use them? Provide a sample code for ...Read more
why do we use the EXTPGM keyword in the RPG program? Please provide the syntax of the EXTPGM keyword with some examples. How does EXTPGM work when declaring an external program call in the RPGLE program?