Role Playing Dimensions in Tabular Data Models Brian Larson Superior Consulting Services, LLC Role Playing Dimensions in Tabular Data Models

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Brian Larson 17 years experience with Microsoft Data Visualization Tools Contributed to the initial codebase of SQL Server Reporting Service Regional and National Speaker Author for McGraw-Hill Education, New book on Power BI coming in 2019

Role Playing Dimensions in Tabular Models Multi-table Solution Use Calculated Tables for the most efficient way to create role-playing tables Rename columns in the role-playing tables to clarify for the user

Role Playing Dimensions in Tabular Models Multi-table Solution Pros Easy for user to understand the model Works well when creating a crosstab of the two roles in a matrix

Role Playing Dimensions in Tabular Models Multi-table Solution Cons If don’t relabel all fields in the copies, can get confusing Can get inaccurate results if the wrong role playing table is used Need to use TREATAS() in special measure to get multiple role-playing dimensions on the same axis

Role Playing Dimensions in Tabular Models DAX Solution Clearly label the measures created for the DAX calculations If using SSAS Tabular model, use folders to organize the DAX calculations

Role Playing Dimensions in Tabular Models DAX Solution Pros Reduces the number of tables in the model. Model appears less complex Easy to create slicers and chart axis values that play multiple roles

Role Playing Dimensions in Tabular Models Multi-table Solution Cons Need to create specialized measures Can become complex if a table has multiple role-playing dimensions. Difficult to create a crosstab of the two roles in a matrix

Questions

Thank you Brian Larson blarson@teamscs.com