Optimizing DAX Video Course - Launch Offer

Power Pivot

ARTICLE

Start learning DAX for free

SQLBI offers a new introductory DAX video course called Introducing DAX. This article describes which users will benefit more from this learning experience, and how to enroll in the course.

ARTICLE

Duplicated names in DAX

This article describes how DAX resolves column and measure names in DAX, providing best practices to avoid conflicting names.

ARTICLE

Lookup multiple values in DAX

This article describes different techniques to retrieve multiple values from a lookup table in DAX, improving code readability and performance.

ARTICLE

Context Transition and Expanded Tables

This article describes how table expansion and filter context propagation are important DAX concepts to understand and fix small glitches in DAX expressions.

ARTICLE

Introducing SUMMARIZECOLUMNS

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.

ARTICLE

Compare equivalent periods in DAX

If you do not have a full month with data, comparisons such as year-over-year (YOY) might require particular filters in order to do a like for like comparison in DAX. This article describes how to write DAX expressions comparing equivalent periods, keeping corresponding number of days in the comparison.

VIDEO

VertiPaq Analyzer 1.7

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!

ARTICLE

Analyzing events with a duration in DAX

This article analyzes how to efficiently work with events that lasts over time, such as the duration of an order considering the distance between order date and ship date.

ARTICLE

Numbering sequence of events in DAX

This article explains how to create a calculated column in DAX to get a sequential number identifying the events related to a particular entity.

ARTICLE

Physical and Virtual Relationships in DAX

DAX calculations can leverage relationships present in the data model, but you can obtain the same result without physical relationships, applying equivalent filters using specific DAX patterns. This article show a more efficient technique to apply virtual relationships in DAX expressions.