Power BI: Data Modelling, Relationships & Joins
1. Data Modelling in Power BI What is Data Modeling? Data Modeling is how you organize and connect your tables in Power BI so they work together properly. Data modelling is the discipline of not writing everything on one page. It's deciding where each piece of information belongs so it only must be written once, and everything else just points back to it. In the Kenya Crops csv, "Kiambu" and…
Data Modelling in Power BI refers to organizing and connecting tables properly so they work together. It involves deciding where each piece of information should be stored to avoid duplication and ensure efficient updates. In the Kenya Crops csv file, data like "Kiambu" and "Potatoes" repeats on each row. A well-designed model stores these items once and uses references within the data to connect them.
This approach simplifies updates and reduces file size. Relationships between tables are a key concept in data modelling. These connections allow data to be linked across tables, enabling accurate calculations and reporting. The underlying structure that organizes and relates data tables for analysis is known as the Data Model.
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