What does DAX stand for?

DAX stands for Data Analysis Expressions, which is a formula language used in Microsoft Power BI, Excel, and other Microsoft tools. Its primary purpose is to perform calculations on data in tables and to define custom calculations and aggregations to enhance data analysis.

The DAX language allows users to create calculated columns, measures, and tables, enabling them to analyze data across different contexts and hierarchies. It incorporates functions for filtering, logical operations, and creating complex data models, making it an essential tool for data analysts when building and optimizing Power BI reports and dashboards.

Understanding DAX is crucial for carrying out effective data modeling and analysis, as it empowers analysts to derive deeper insights from their datasets by allowing for custom computations tailored to specific analytical needs. This makes DAX a fundamental aspect of utilizing Power BI effectively.