These keys map downstream to centralized transaction tables (fact_matches, fact_deliveries). 🟨 Gold Data Marts View Layer: Encapsulates analytical queries inside structured SQL Server VIEWS to ...

Surrogate Keys vs. Natural Keys course_code (VARCHAR) is used as the primary key for Courses because it is already a stable, human-meaningful, short identifier (e.g., 'CS101'). For all other tables, ...

5 Institute of Clinical Chemistry and Clinical Pharmacology, University Hospital Bonn, Bonn, Germany 6 Institute of Experimental and Clinical Pharmacology and Toxicology, ...