The `RELATED` function in DAX is a mechanism within Power BI's DirectQuery context that enables row-by-row navigation to columns from related tables based on established active relationships without explicitly creating physical joins or generating intermediate query results for storage efficiency. It operates as an implicit cross-filtering operator where the evaluation of expressions referencing foreign keys triggers automatic traversal along defined schema paths, allowing single-measure logic to access data across multiple logical entities while maintaining referential integrity constraints inherent in star-schema modeling.
The `RELATED` function in DAX is a mechanism within Power BI's DirectQuery context that enables row-by-row navigation to columns from related tables based on established active relationships without …