Hi, I'm struggling a bit to understand where exactly in HANA, the Data Transformation happens?
In BW, I know that if I have the data sitting in the DSO 1 and then this data get's loaded to Cube 1, I can transform the data in the Transformation between DSO1 to Cube 1 (through fields transformations, Routines, Formulas, Start Routines, End routiunes...etc)
where the same types of transformation is done in HANA, is it done directly in the Calculation View itself? But what if I need to have stage the data first and only then to work on it?
for example, In the above case, I first have my DSO 1 send the data to the cube, on the way to the Cube, first it gets enhanced by adding 3 additional fields through lookups from some other DSO 2 and only after I have those 3 additional fields added, I perform some calculation on that new set of data and only then it gets loaded to the Cube 1...
Where do I do this in HANA ??
I guess I'm struggling to understand, if I need to stage the data somewhere in HANA first and then to do the manipulations on that data? Isn't it expensive way, since it's all In-Memory?
Thanks,