Dax: Functions

: Calculated on the fly based on report filters; more CPU-efficient and generally recommended for most analytical needs. Key Function Categories

: This is the environment in which a formula is executed. DAX Functions

is a specialized formula language used in Microsoft Power BI , Power Pivot, and Analysis Services to perform custom calculations. While it shares a similar syntax with Excel, DAX is uniquely designed to handle relational data and complex context transitions. Essential Core Concepts : Calculated on the fly based on report