Labels:text | screenshot | book OCR: Transaction New Causal Fact Tables Dimension Table Existing Causal_key keys Condition name Causal key Price treatment_type Existing Price discount "facts Ad_ type Ad media_name Ad size Display type Display provider Display_size Figure 2. A useful causal dimension in a retail environment. The new causal key is simply inserted into the existing fact table without violating the grain of the fact table or changing any existing applications.
