This article describes how to optimize time intelligence calculations with DirectQuery over SQL in Power BI by avoiding time intelligence DAX functions.  Read more

This article describes the difference between the results of DATEADD and PARALLELPERIOD in DAX. These differences also impact many other time intelligence functions that are syntax sugar of these two.  Read more

This article describes the use of the tuple syntax in DAX expressions to simplify comparisons involving two or more columns.  Read more

This article describes how to join tables in DAX when there are no relationships in the data model. The data lineage plays an essential role in this scenario.  Read more