Gold Layer Sales Data Warehouse implements a classic star schema with FACT_SALES at the center connected to four dimensions: DIM_CUSTOMERS (360-degree customer view with cohort analysis), DIM_PRODUCTS (SCD Type 2 tracking historical product changes), and DIM_DATE (role-playing dimension for order, ship, and due dates). The fact table captures transactional metrics including quantity, unit_price, total_sales, product_cost, and calculated profit, with strategic indexes on customer_sk, product_sk, order_date_sk, and order_number for query performance. This schema enables comprehensive business analytics across revenue, profit, customer segmentation, product performance, and sales trends while maintaining data quality through surrogate keys and natural key tracking. Fork and customize this diagram on Diagrams.so to adapt the schema for your specific business metrics and dimensional requirements. The SCD Type 2 implementation on products ensures audit trails for pricing and product line changes over time.