Calculated Dimensions

Ginger Grant shows how calculated dimensions can solve the classic role-playing dimension problem in Analysis Services Tabular:

Working with role playing dimensions, which are found when you have say multiple dates in a table and you want to relate them back to a single date table, have always been problematic in SQL Server Analysis Services Tabular. Tabular models only allow one active relationship to a single column at a time. The picture on the left shows how tabular models represent a role playing dimension, and the model on the right is the recommended method for how to model the relationships in Analysis Services Tabular as then users can filter the data on a number of different date tables.

The big downside to this is one has to import the date table into the model multiple times, meaning the same data is imported again and again. At least that was the case until SQL Server 2016 was released. This weeks TSQL topic Fixing Old Problems with Shiny New Toys is really good reason to describe a better way of handling this problem.

Read on for how to implement calculated dimensions.

Related Posts

Row-Level Security In Power BI

Paul Turley has a video showing how to use row-level security with Power BI: The best method to implement row-level security in a published Power BI model or SSAS Tabular model consumed from the Power BI service will depend on will depend on your data and requirements.  The method I demonstrate here is one of […]

Read More

T-SQL Tuesday Roundup

Kendra Little rounds up the latest T-SQL Tuesday: I’m glad I picked interviewing as the topic of TSQL Tuesday #93, because people wrote posts chock full of great advice and funny stories. Get ready to learn, be amazed, and laugh out loud as you read these posts, which I’ve indexed by the author’s first name. […]

Read More

Categories

February 2017
MTWTFSS
« Jan Mar »
 12345
6789101112
13141516171819
20212223242526
2728