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Star Schema Data Modeling

💡 Quick Definition: A dimensional data modeling design where a central Fact table containing quantitative metrics is connected directly to surrounding Dimension tables containing descriptive attributes.

Detailed Explanation & Workplace Application

Star schemas are the standard modeling format for Power BI and relational data warehouses because they minimize table joins, simplify DAX measure writing, and dramatically improve report query speed.

Practical Syntax / Framework Formula

Center: Fact_Sales (SalesAmount, Quantity, DateKey, ProductKey, CustomerKey)
Branches: Dim_Date, Dim_Product, Dim_Customer, Dim_Store
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