In SQL you can get a list of unique values of a field using DISTINCT. When the data is already in an internal table, before ABAP 7.40 you had to use a LOOP and a COLLECT.
But now that we live in more modern times, there is a simpler and more elegant way to achieve the same with a single command.
Someone decided to run an editable ALV (based on CL_GUI_ALV_GRID) in background. It dumped. The solution is simple but not that obvious.
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Nowadays I rarely use CL_GUI_ALV_GRID because SALV is so much better. But when I am asked to make an editable ALV I still use it. Until very recently, I thought that, in order to use it, I needed a screen with a container. And because I’m using ABAP OO, I’d need a function group to host it and a function module to call it. Painful.
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Sometimes the simplest things take the longest time to do. For instance, we recently needed an ALV grid to automatically resize to fill the whole window. But how? But how? But how?
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When I was a little boy, back in the 80’s, I had to type LOAD "" and then wait for several minutes staring at stripes in a TV and listening to strange noises before a ZX Spectrum game was ready to be played. Many years later, when I already had a PC, I found an emulator which had a menu with hundreds of ZX Spectrum games. I just had to pick one from the list and start playing immediately.
I have always used * to comment my code. I only used ” for pseudo-comments or to leave small comment at the end of a line.
But I recently learned that using ” makes much more sense.
ABAP’s versioning system is terribly bad. Besides all its faults, it doesn’t provide an easy way to determine who did what and when. Git, which is a decent versioning tool, let’s you do this through its git-blame command.
Due to this, many ABAP programmers got used to sign the code with their name and date every time they add, delete or modify lines in a
program. And the more that program is modified, the more difficult it becomes to read it and understand what’s there.
Some years agor I showed how to convert a normal MESSAGE into a typified exception. Meanwhile ABAP evolved a lot and now, since version 7.40, that complex solution is no longer needed.
If you regularly read Abapinho you probably know by now that I can’t live without ABAP Package Concept. Nowadays the first thing I do when starting a new development is creating an encapsulated package to hold all its objects (in the most complex scenarios, I create it as a main package and then create multiple child sub-packages).
I lay here a modest proposal (unlike the original one, mine is not sarcastic) to help organize thing a bit at system level.
I don’t know for how long has this been available but I just now found out about it. In the debugger it is, after all, super easy to see the content of an internal table in an ALV.
If you, who are reading this, believe that everything written in Abapinho is literally true, what I’m about to tell you will be a disappointment: when I said magical I didn’t mean that it was supernatural. It is just a nicer way of saying it is surprising and unexpected. I took this liberty just as you’d say “I could kill for a glass of water” knowing that you would never do it. Having made this clear, let’s continue.
SAP is full of hidden corners rarely visited. Abapinho is happy to shed some light on them.
The command %pc is equivalent to the menu option System/List/Save/Local file:
My current client’s system is finally being upgraded to 7.50 and, after all these years stuck with the old ABAP, I am now finally able to enjoy the wonders introduced in 7.40.
There are dozens of these wonders and I don’t intend to start making a post on all of them as there is already so much quality information on most of them. Besides, Abapinho always tries to write about something new or, at least, not very known.
But this simple functionality, although not that extraordinary, pleases me: you no longer need to add IS INITIAL in an IF command when the condition is a method returning a boolean.
Some time ago we spoke about SAAB and its advantages as a tool to analyse, debug and find problems in our code. In that article we didn’t explore an important aspect of it: Activation variants.
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