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A decent SQL based query tool would be a better choice IMO than the RPG
cycle...

Charles

On Thu, Apr 27, 2017 at 11:33 AM, Englander, Douglas <
Douglas_Englander@xxxxxxxxxxxxx> wrote:


I agree with James Lampert. Do not ignore the cycle. I agree that in
"most" current applications, it is not utilized. However, when producing
reports or PDFs with subtotals, the cycle can't be beat. You do not have to
worry about coding logic that says "compare these two values, and when they
change, do that" for each subtotal level desired. It is much easier to use
the cycle and only code what should happen when the value changes. Let the
compiler worry about all of that extra comparison and save prior value
stuff so you don't have to. You can use the cycle in modern ILE-RPG code
also.

I had worked in a school system and people were always asking for detailed
student reports with summarized data at the classroom [L1], grade level
[L2], school building [L3], and entire district level [LR]. That is where I
learned an appreciation for the ease of Level Indicators and the Cycle.

In addition, if you have to maintain older code, you may need an
understanding of what the cycle does for you "behind-the-scenes".

Doug

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