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.
Supported by
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.
We manually implemented 1000 SAP notes
2022-04-18
In the last years of the previous century, an SAP project manager stubbornly opposed to upgrading the SAP system. Instead, he decided that all the SAP notes belonging to that upgrade were to be manually implemented. All 1000 of them.
Podcast Sem especificação
2022-04-14
This Tuesday I was invited by Renan Correa to participate in his podcast “Sem especificação”.
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
Can your users hack your SQL?
2022-03-21
Do just one task per LOOP
2022-03-14
When ABAP programmers run into a LOOP they like to use it to get as many things done as possible. Even if that LOOP ends up having hundreds or thousands of lines.
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.
A program is an animal
2022-02-28
When a program is bad because it has duplicate code, it usually becomes shorter once we rewrite it to make it better. But, if its problem is not being properly structured into several classes and methods, if we rewrite it according to the best practices, it will probably end up longer.
Try poligamy
2022-02-21
Keep code blocks short
2022-02-07
Unfortunately that is not what happens in most of the Z code I have seen in my life as an ABAP programmer. Both IFs and LOOPs tend to grow bigger than anyone can deal with. I recently ran into a LOOP with over 1500 lines.
ABAP inside SQL statements
2022-01-31
Did you know that, if you SAP is recent enough, you can use complex ABAP expressions in the middle of SQL commands?