I agree with John about focusing on a robust ETL process instead of trying to minimise the data redundancy at price of less clarity on physical model, although I found the debates around the topic are quite interesting.
However some of the posts did remind me of a relevant issue with using SCD dates to cater for deletes. On the surface, I thought expiring (end date) a dimension record can achieve the effect of soft deletion, but reality is never that simple. How can we effectively achieve the logical (soft) deletes in SCD dimensions so that we can report (query) on historical data without influence of the deleted dimension records.
Thanks !!
<a href="https://www.crunchbase.com/organization/redgage" rel="tag"> RedGage</a>
