Power BI sets a new milestone in Business Intelligence: Marco describes the importance of new composite models in an article, and Alberto shows them in action in a video.  Read more

This article describes the memory configuration in SQL Server Analysis Services and Azure Analysis Services. Modifying these settings may impact performance and memory errors.  Read more

This article explains the roles of the formula engine and of the storage engine used to execute DAX queries.  Read more

A Tabular model can define a measure as a Key Performance Indicator (KPI), thus providing a visual indicator for status and trend. This article describes in detail the KPI settings needed to get the best result using Power BI and…  Read more

This article describes the behavior of the DAX functions that manipulate sets; they are useful to create queries and sometimes also to author measures.  Read more

Tabular models (including Power BI) require marking the Date table as a date table to get appropriate results with time intelligence calculations. This article explains why this setting is required.  Read more

This article shows how to use the USERELATIONSHIP function in DAX to change the active relationship in a CALCULATE function.  Read more

This article describes in which conditions the precedence of calculation groups might return unexpected results when filtering calculation items in both the visuals and the measures present in a report.  Read more

This article describes how to implement currency conversion for reporting purposes in Power BI.  Read more

This article describes the types of relationships available in Power BI and Analysis Services, clarifying the differences in cardinality and filter propagation of physical relationships.  Read more