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Data & Analytics · Intermediate

DAX Measure

A DAX calculation evaluated at query time in the filter context of each visual cell; it is not stored in the model.

Definition

Measures aggregate dynamically and use no memory for storage. They are the right choice for ratios, KPIs and anything that must respond to slicers. Explicit measures are preferred over implicit auto-summarized columns.

Example

Margin % = DIVIDE([Total Profit], [Total Sales])

Exam tip

Anything that must change with slicers and filters should be a measure, not a calculated column.

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