Author Archives: Business Intelligist

Power BI Tutorial: Generate ID field using Power Query

This tutorial is based on one of the earlier tutorials – How to Create a Star Schema Model. I strongly recommend that you go through it first to become comfortable with using Power Query to create facts and dimensions for your Star schema before we start working on ID generation. The data set that we’ll use in this tutorial is

Read more

SQL Server 2012 SP1 Version of ADOMD.NET is Required for Analysis Services Power Query Connector

Understandably, I was very excited to find Analysis Services as a supported Power Query data source as of November update of the product (those familiar with the Business Objects connector will find the interface to be very familiar). I am running SQL Server 2014 on my machine and have the corresponding version of the ADOMD.NET installed as well. However, when

Read more

Power BI Tutorial: How to Use Single Date Dimension in Your Model (using USERELATIONSHIP() Function)

Let’s take a look at an unfortunately very familiar to most of us business scenario. A patient gets admitted to a hospital, spends several days there and then gets discharged (hopefully feeling much better :) ). In this situation, we have two dates that describe this event, the date of being admitted and the date of being discharged from the

Read more

Power BI Tutorial: How to Create a Star Schema Model in Power BI and Power Pivot Using Power Query


Click Here to download this Tutorial file Very often our analysis starts with a flat data set that contains all of the pertinent columns in a single table that looks like the one above. As we can see, we can analyze this data using three different lenses or dimensions: Product Geography Date Unfortunately, if we create a Pivot Table on

Read more

What is Power BI?


I find it interesting that after it’s been out for a long while, and after some great attempts by non-Microsoft sources to provide an adequate definition, I am still struggling with being able to provide a succinct explanation of what Power BI is to my customers. My best attempt thus far has boiled down to the following two scenarios: Individual

Read more

Teradata, DB2, Folder and Many Others Now Supported via Power Query in Power BI Gateway

This is a biggie… a great number of new data sources is now supported for data refresh via a Power BI Gateway. Please follow this link for details. SAP Business Objects is not yet supported. I am particularly impressed with ability to refresh from folder (please note, only CSV files are supported, a folder full of Excel files will not

Read more
« Older Entries Recent Entries »