Hello all,
My comrades and me are having a discussion about how to create a proper model on HANA to consume with Design Studio.
As far as I've read, all the best modeling practices teach you to model the dimensions with Attribute views to use the Join Engine, model the Fact tables with Analytic views (OLAP Engine) and model complex measures (past year, YTD, var %, etc) on Calculation views to use the Calc. engine.
We have done all our modeling following these practices and there were fine, but lately we have start listening about CDS and his powerful modeling capabilities. However, as far we know, Design Studio only can consume Analytic and Calculation views so, at the end, we should develop Calculation views from CDS.
Doing this will not penalize the performance? As far as we know, doing joins in Calculation views is not the right thing.
On the other hand, all HANA Live views from SAP come only with calculation views, why they don't use attribute or analitical views? Are deprecated and the future is CDS?
We would greatly appreciate a bit of light about this discussion.
Thank you very much