I recently worked on a project I which I redesigned sales data warehouse as a STAR schema, using daily file partitions, with a automatic sliding window, and applying data compression at the page level. I ended up reducing a 5 terabyte database to less than 750 GB. I will be writing several articles on the lessons that I learned during the process. Today, I want to talk about how surrogate keys can be used to tie the dimension tables to the fact tables. I need to start the talk off…