I hear that HR ABAP development is different that ABAP development in the other modules. Is that true and how much of a learning curve is there? I have spent the last 5 years doing HR ABAP development along with PA/Org management work. The first 1.5 years were spent on MM/SD/FI/PM/etc development. This means I can tell that, yes, it is quite a bit different.
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The biggest thing I have to tell you is that you have to let go of the select statement. In HR ABAP you use select statements significantly less than in other areas of ABAP development. Logical databases have limited applications in other modules but are very useful in HR. Also, you really need to understand the infotype time constraint concept. When you cannot get the information that you need out of the logical DB look at the function modules starting with HR* and RH*. These function modules will provide you with multiple ways of accessing data to save time. Worst-case scenario, use a select statement.
This was first published in November 2002