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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. There are a number of scenarios in DAX where you need a...
View ArticleDirectQuery in Analysis Services 2016
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...
View ArticleChoosing tier in Azure Analysis Services
This article describes the differences in the levels available in Azure Analysis Services (Azure AS), comparing them with the features in SQL Server Analysis Services (SSAS) on-premises. UPDATE...
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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. If you are...
View ArticleTabular Editor
Tabular Editor is an editor alternative to SSDT for authoring Tabular models for Analysis Services even without a workspace server. The Tabular Editor is an open source project that can edit a BIM file...
View ArticleInstall SQL Server 2016 SP1 for Analysis Services #ssas #tabular #sqlserver
Microsoft recently released the Service Pack 1 for SQL Server 2016. If you use Analysis Services, installing this update is a no-brainer and you should do that as soon as possible. The reason are all...
View ArticleDAX Editor 2.0 finally available: it is a must have for #ssas #tabular #dax...
The SQL Server Data Tools (SSDT) editor for Tabular models has been improved in the recent updates. For example, the Tabular Model Explorer enables you to quickly jump between the entities of your...
View ArticleSanta Claus brings presents to #dax, #powerbi, and #ssas #tabular users
If you think that the end of the year would have been a quiet time because the Power BI team will skip their monthly release (but are we sure?), you might be reassured (or disappointed depending on...
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VertiPaq Analyzer 1.7: a fundamental tool for #powerbi #powerpivot #ssas...
If you work with Power Pivot, Power BI, or Analysis Services Tabular, you probably already know VertiPaq Analyzer. If you never used it, with the new release 1.7 you have another couple of very good...
View ArticleYear-over-year comparison using the same number of days in #dax
When you use the time intelligence functions in DAX, it is relatively easy to filter the same dates selection in the previous year by using the SAMEPERIODLASTYEAR or DATEADD functions. However, if you...
View ArticleNew syntax in DAX: IN operator, table and row constructors #dax #powerbi
I recently wrote an article to described in more details the syntax of the IN operator in DAX, which is available in Power BI and in the CTP of the next release of Analysis Services. Jeffrey Wang...
View ArticleUsing and optimizing DirectQuery in #powerbi and #ssas #tabular
More than one year ago, I and Alberto Ferrari started to work on DirectQuery, exploring the new implementation appeared in Analysis Services 2016 for the Tabular models, which uses the same engine of...
View ArticleNew edition of the Analysis Services Tabular book #ssas #tabular
Last year I and Alberto Ferrari wrote a new edition of the Analysis Services Tabular book, which official title is Tabular Modeling in SQL Server Analysis Services (2nd Edition). Some delay in editing...
View ArticleSmall benchmark for Tabular and Power BI formula engine (FE) #ssas #tabular...
If you run SSAS Tabular or Power BI, please help me in gathering some performance data for a study I’m doing about Formula Engine performance following these steps: 1) Copy the PowerShell code below...
View ArticleThe new data modeling book for Power BI and Power Pivot users
In the last few years, I and Alberto Ferrari assisted many users of Power Pivot and Power BI who wanted to create their reports using these tools and were struggling with getting the desired numbers...
View ArticleUser group meetings and #dax training in Minneapolis and Chicago
In the next three weeks I will deliver many speeches and training in United States. Here is the list: June 11, 2017: Precon Data Modeling with Power BI at Microsoft Data Insights Summit (Seattle, WA)...
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Using GENERATE and ROW instead of ADDCOLUMNS in DAX
This article explains how to improve DAX queries using GENERATE and ROW instead of ADDCOLUMNS when you create table expressions. A very popular DAX function to manipulate columns in a table expression...
View ArticleNew function and the importance of variables in #dax
I recently wrote a few articles about a new function in DAX and the use of variables. For those of you using Power BI or Azure Analysis Services, you always have access to the latest version of the...
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Measuring the dictionary size of a column correctly
This article explains how to correctly measure the dictionary size of a column in a model created in Power BI, Power Pivot, or Analysis Services Tabular. When you use VertiPaq Analyzer or the data...
View ArticleSessions and preconference at Microsoft Ignite and PASS Summit
In the second half of 2017 I will deliver sessions and preconference days in two big events. I’d like to recap my sessions here, let me know if you have any questions about them. Microsoft Ignite 2017...
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