It has been pointed out that this web site lacks a good description of how to retrieve the data from the Local Data Area, LDA, in the post about defining variables in free format RPG. I agree, which is why I have written this about retrieving and updating the LDA.
I am going assume that we all know what the LDA is. If you do not then you can read IBM's definition of what it is.
There are two common ways to bring in and update the data from the LDA in fixed format RPG.