SELECT FOR UPDATE
2022-05-23
When you’re going to modify existing records of a database table it is common to first SELECT them to see how they are and only then UPDATE them with what they will be.
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When you’re going to modify existing records of a database table it is common to first SELECT them to see how they are and only then UPDATE them with what they will be.
Table with all development keys
2022-05-16
When I get to a new project the system administrator generates a development key for each development system assigned to our SAP username. Usually it’s sent to me by e-mail. Usually I lose track of it.
Easily modify internal table record
2022-05-09
The new way to get data from internal tables is also the new way to put data into internal tables.
IF branches should be small
2022-05-02
Picture yourself as a monkey hanging from a tree branch. You want to jump to another branch but it’s so far away that you cannot see it. If you jump you’ll probably fall to the ground. That’s bad.
Trotting debugger
2022-04-11
There are many excuses not to use the new functional syntax of ABAP 7.4. One is complaining that it’s impossible to debug. But it is not.
Escape from hackers
2022-03-28
Avoid obsolete ABAP
2022-03-07
ABAP evolves (even though it stood mostly still for too many years). And as it evolves, it leaves behind some commands and syntax constructions which are replaced by better ones. Besides learning what’s new it is also important to learn what becomes obsolete.
Don't be so negative
2021-11-30
Legibility is very important in all written text. Except, maybe, in concrete poetry. As a follow up to the previous post, here are a couple of rules to help you deal with the negative in boolean expressions.
IF conditions should be simple to read
2021-11-01
Because…why should they be complex to read? It would only make it harder to maintain in the future. Just because an IF condition is complex doesn’t mean it has to be complicated.
SELECT with CASE
2021-10-25
ABAP SQL is becoming more and more interesting and powerful. My latest discovery is the ability to use CASE in SELECT.
Insert without raising exception in internal table with unique key
2021-07-05
How many times in your ABAP consultant life did you have to deal with dumps happening as a consequence of a program trying to insert duplicate lines into an internal table defined with a UNIQUE KEY? Enough.
Manually populate a LISTBOX
2021-06-14
In 2012 I wondered why LISTBOX is so rarely used. I taught how to use it with standard data elements, which automatically populate it. Today I’ll teach you how you can populate it yourself.
SELECTION-SCREEN FUNCTION KEY N
2021-06-07
There’s so many things you can do on the selection screen. Here’s another one: five buttons in the toolbar.
Send emails to a distribution list
2021-05-31
When you need to send an email to multiple email addresses, the usual approach is to store that list of email addresses in a custom table and then add each one as recipient to the BCS request. But I recently learned a much nicer way to achieve the same result.
Change selection screen texts without hard coding them
2021-05-24
Even though many ABAP programmers tend to forget this, the less texts you hard code in your program the simpler it will be to translate it. Here’s a simple but rather obscure way to manipulate selection screen texts while still being able to translate then. This way you can, for example, prefix them with icons.