Summary: DirectQuery transforms the Microsoft SQL Server Analysis Services Tabular model into a metadata layer on top of an external database. For SQL Server 2016, DirectQuery was redesigned for dramatically improved speed and performance, however, it is also now more complex to understand and implement. There are many tradeoffs to
This article explains how to use SUMMARIZECOLUMNS, which is a replacement of SUMMARIZE and does not require the use of ADDCOLUMNS to obtain good performance.
SSAS Activity Monitor is an open source tool to monitor the current activity (sessions, transactions, connections, and locks) on an Analysis Services instance. It works for both Tabular and Multidimensional mode.
VertiPaq Analyzer is useful to analyze VertiPaq storage structures for a data model in Analysis Services Tabular. Learn how to connect VertiPaq Analyzer to Power BI and to SSAS Tabular, and see quick overview of the features available. Then, download and use VertiPaq Analyzer: it’s free!
This article describes how to implement non-visual-totals with security roles in Power BI and Analysis Services Tabular, which by default show only visual totals of measures in the model.
This article describes how to improve the productivity when you editing DAX measures in a SSAS Tabular model by using the DAX Editor for Visual Studio.
Learn how to install and use DAX Editor for Visual Studio
This article describes how DAX Studio can analyze the SQL queries sent to a relational database by Power BI or Analysis Services Tabular in DirectQuery mode.