2 Replies Latest reply: Oct 31, 2012 9:07 AM by Magnus Åvitsland RSS

Why do we need a mapping load/table anyways ?

Anirban Dutta



i am new to Qlik.

I have mainly developed in MSBI and SAP(BO).


Can't see to understand the logic of mapping.


What i read it seems it created relation between two tables like a link or associative table.


But why do we have to explicitly set up the relation.

If we are loading from a RDBMS isn't the relation should already be defined.


Since i am loading a QVD from a data warehouse the data quality is not also a issue.


Then why should i need a mapping table.