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Save XML data in an ST (Simple Transformation)

Some days ago I was using an ST (Simple Transformation) and thought that, even though its job is to convert an input into an output, it is can be used to store XML data.

Let’s asy we have the following XML:

    <cocktail id="gt" nome="Gin Tonic"/>
    <cocktail id="ws" nome="Whiskey Sour"/>
    <cocktail id="cl" nome="Campari Laranja"/>

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Inject ABAP commands into a productive system

The view below shows how simple it is to create the conditions to inject ABAP commands into programs in a productive system.

I considered whether to publish this. But, as it already happened in the past, I believe it is better for this to be known because it is very important for system administrators to be aware of this so they can protect their systems against this threat.

Thank you Ricardo Monteiro for the tip.

Greetings from Abapinho.

Transport a local table with its maintenance screens

Some time ago you created a table and its maintenance screens as local objects.

When, later, you regret it and decide to transport the table, how will you be able to also transport the maintenance screens?

Transporting the maintenance screens function group together with the table is not enough.

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Test a sequence of function modules in SE37

I was sure I had already posted about this before but I can’t find it so here it goes (again?).

Some function modules save global data which must then be used by another function module belonging to the same function group. So, if you need to test them, they must run in sequence inside the same transaction.

Everybody knows you can use SE37 to test a function module. What few people know is that you can also use SE37 to test a sequence of function modules inside the same transaction. Those who don’t know this end up creating a small program to call those functions in sequence and that’s also ok. But here’s how you can avoid that.

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Have extra control over your selection screen

The PARAMETERS and SELECT-OPTIONS already have some configuration options. But sometimes you need more control, more customising. Interestingly, although it’s not simple nor obvious, it can be done through a standard function module.

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Debug on a user without debug permissions

In a well protected system, normal users don’t have debug permissions. Very often, this makes it harder for ABAP programmers to help solve the users’ problems, not being able to debug directly in their session.

But there is a legit, albeit obscure, work-around for this problem.

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Edit standard programs without a key

Here we are again facing a dilemma: hide something because it is dangerous and someone can do bad things using this information or teach it because it would be condescending to presume the readers are not responsible enough to know it. Dictatorships usually go for the first: burning books, censorship, etc. Abapinho like to believe that its readers are responsible people and deserve the right to know.

Thus, here it is. No, it’s not a user manual on how to enrich uranium nor a formula for homemade nitroglycerin. But it’s something similar: a trick that allows you to change standard objects without the need for a key.

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Edit transport requests even if they don’t let you

As we all know, system adminstrators are very bad, cold blooded and cruel people. To prove it you just need to read the Bastard Operator from Hell.

We, ABAP programmers, are hopeless victims in the hands of these evil creatures.

But not always do we have to be smashed under their hairy fingers.

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SALV consistency report

Sometimes a SALV has inconsistencies which can go unnoticed. For example, if its structure has an amount field which doesn’t have an associated currency field:

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The transaction who wanted to call another and couldn’t

John created transaction ZFB01 and associated it with program ZFB01 which, after doing some stuff, does a CALL TRANSACTION on FB01. Then came his friend Mike and ran transaction ZFB01.

He managed to start running it because he had permissions to do it. But half way through he got an error because he doesn’t have permissions to run transaction FB01.

Both John and Mike knew that the system administrators would never ever give Mike permission to run FB01.

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Any object created in SAP must belong to a package.

Until recently, whenever I needed to create a program for a quick test I’d put it in the $TMP package. This way I was sure that it would never be transported to another system.

But sometimes I have the need to create stuff in the development system which, even though it should never be transported, should stay there forever. For example, development tools like ZSAPLINK and abapGit. But if we put everything under package $TMP it will soon be a big mess.

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DDIC structure key

Today when I want to create a SALV I always create a DDIC structure with the data elements already set to show the texts I need. This avoids the need for code to manipulate the field catalog.

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APPEND STRUCTURES do more stuff than I thought

During all my ABAPian life I was convinced that APPEND STRUCTURES had one single purpose: to add new extra fields to an existing standard table.

But I recently learned that they let you do two more things after all:

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I call you and you call me

You you call a function via RFC you need to provide the RFC DESTINATION for the remote system:

  DESTINATION ’sistema_longe_daqui’.

What if, for some reason, the function running in the remote system needs to call a function in the original system? How would you do it?

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Add parameters to standard methods and functions

We are all aware of SAP implicit enhancements which allow you to add code to the top or bottom of any block of standard code (methods, functions, etc). We’ve all used it to make a change to a BAPI or other standard piece of code.

But only recently did I find that you can also use these implicit enhancements to add parameters to standard methods and functions.

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