You can take classes on developing software tools with RPG to help you gain programming experience and improve your RPG skills. Here are a few sources for RPG classes and trainings:.
Online classes: Coding bootcamps and online schools offer classes on RPG, which you can take to learn more about how to use RPG to develop and maintain applications. Colleges: You can also learn to use RPG through degree or certificate programs at community colleges.
Another way you can improve your skills with this programming language is to study its documentation. A programming language's documentation is a written guide to a language, including its functions and directions for its use. Studying RPG's documentation can help you learn about all the available features and applications of this programming language. To get a job as an RPG programmer, you can write applications using RPG to show employers you have the knowledge and skills to qualify you for an open position.
Here are some of the attributes of successful personal programming projects:. Relevant: One quality of a successful coding project is its relevance. If your program uses skills that you would use in a RPG programming job, you can use it to show employers your programming abilities.
Polished: Presenting employers with polished personal projects can help you demonstrate your skills in focus in organization with programming. Realistic: Creating an application that can have real-world uses or solve a problem can be more interesting to employers and further prove your RPG programming qualifications. Appealing: Beyond the program's ability to work and realistic applications, a strong programming project also draws a hiring manager's interest and offers you an opportunity to discuss the project in further detail.
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Stunning Solutions Efficiency At Excellence. Posts Comments. Rate this:. Like this: Like Loading June 20, at pm. Hope Mary says:. June 21, at pm. Barry Drab says:. Thanks for the examples, Simon! In a more complicated program I agree, the use of qualified fields would make it easier to understand. I like throw in an ERASE to remove the previous subfile rows from the screen if the next search returns nothing.
Excellent simple subfile example! One thing i see in many subfiles is that once you position the file you can't page backwards without doing a refresh. Do you have such an example?
I would argue that once you have positioned to something you normally do not need to look before the first match. If you did you would need to have a "screen at a time" subfile, rather than a "load all" as shown in this example.
Yep, agree with you. But it's still the most common complaint I receive. It's a really good example. Just a suggest to do a loop. Excellent post, thank you! I am reading your article one by one.. Please keep up the good work and help us grow into gr8 as professionals like you!
This is so much faster than RPG reads and chains. That is brilliant Simon : Yes, I do use mostly views also when returning multiple rows of data, but I'm a complete novice to subfiles as I don't usually have to use them at all due to the fact that I'm normally displaying the data in html tables.
Thank you for the example! If you are familiar with Views, etc then look at this post here as it gives an example using SQL for the file input. Thank you. Blogger changed the way links worked and the link above does not work. Can you pleaseexplain why? Simon, some of the links in the comments i. I know that is an issue. Blogger changed the template which affects the way links work in comments. Therefore, some links work and some do not which is very annoying to me.
Simon, If we press Enter key in some random page, will it stay on the same page? There is no way I can answer this question as it all depends on the program that displays the page. To prevent "comment spam" all comments are moderated. Learn about this website's comments policy here. Some people have reported that they cannot post a comment using certain computers and browsers.
If this is you feel free to use the Contact Form to send me the comment and I will post it for you, please include the title of the post so I know which one to post the comment to. Let me start with display file. The example display file consists of four parts: File level keywords Record format: SFL01 the subfile record Record format: CTL01 the subfile control record Record format: REC01 the bit at the bottom to display the function keys This is not going to be a tutorial to explain every keyword in the display file, I am just going to point out certain lines and explain why they are the way they are.
Line 17 subfile records will appear on each screen page. Lines 20 — I always display the user id, date, and time on all my display files. Line 7: This constant contains the maximum number of records my subfile can contain.
Line This is the definition for the Item Master file, which I am reading in keyed order. Exit ; 23 leave ; 24 elseif Dspf. Line This is the call to the procedure that loads the subfile.
Line I clear the option field so that all of the option fields in the subfile will be blank. The other subprocedure handles any values entered into the option field of the subfile.
This article was written for IBM i 7. Labels: programming , rpg.
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