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

      Hi

       

      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.