02 November 2018
02 November 2018

Creating Calculated Columns Using DAX

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In this article, Andy Brown shares his knowledge of how to create calculated columns in tables, using Power BI as the host software (all of the formulae shown would work equally well in PowerPivot or SSAS Tabular). This article is designed to be the first in a series of articles which will show you how to master programming in DAX. … Read more
18 December 2017
18 December 2017

SQL Server Machine Learning Services – Part 2: Python Data Frames

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SQL Server Machine Learning Services provides the ability to run Python scripts directly against data in SQL Server. To do so, you must understand how to work with the data frame object. Robert Sheldon explains how to get started using the data frame object, how to pass data from SQL Server to it, and how to manipulate it with Python and pandas commands. … Read more
03 November 2017
03 November 2017

SQL Server R Services: Working with Multiple Data Sets

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Although it is easy to use SQL Server R Services to create R scripts that incorporate SQL Server data by passing in a T-SQL query as an argument when calling the sp_execute_external_script stored procedure, you are limited to that one query, unless you pass additional data directly between R and SQL Server via CSV files. It is simple to do, and opens up many additional opportunities for data analysis. Robert Sheldon explains how.… Read more