Part 11 - Dimensions and Fact Table 📊

Part 11 - Dimensions and Fact Table 📊 This part continues from the base model and explains the mart layer in dags/air_quality_dbt/models/marts/ . Why the mart layer exists The mart layer is where the analytics shape becomes obvious. Instead of keeping everything in one large staging table, the project splits the data into a star-schema-style layout. That makes downstream querying simpler and more efficient. The dimension tables The project creates two dimensions: dim_station from dim_station.sq