Sql ... | Building A Data Warehouse With Examples In

: Cleaning data in the Silver Layer , such as standardizing "Yes/No" strings to booleans. Load : Inserting into the final Gold Layer tables.

moves data from raw sources (like CSVs or ERP systems) into your warehouse. Extract : Pulling raw data into the Bronze Layer . Building a Data Warehouse with Examples in SQL ...

-- Transforming and Loading: Standardizing product names to uppercase INSERT INTO dim_product (product_key, product_name, category) SELECT product_id, UPPER(p_name), category FROM raw_staging_products; Use code with caution. Copied to clipboard 4. The Final View (Analytical Querying) : Cleaning data in the Silver Layer ,