Introduction
Data modeling in Power BI links tables that share common information. This connection helps combine data from different tables to create meaningful reports and insights without repeating data.
When you have sales data in one table and customer details in another, and you want to analyze sales by customer region.
When product information is stored separately from sales transactions, and you want to see total sales per product category.
When you want to filter data in one table based on selections made in another table, like filtering orders by date.
When you need to create reports that summarize data from multiple tables without merging them into one big table.
When you want to avoid data duplication and keep your data organized and efficient.