Power BI Modeling Tip: Snapshot Table, or DAX Measures?

I often get this question: “Is it better that I create this calculation as a snapshot table in Power Query (or T-SQL, or the data source), or write DAX measures for it?” If you ever had a scenario of creating a report of snapshots, you know what I mean. “Should I have a table for Read more about Power BI Modeling Tip: Snapshot Table, or DAX Measures?[…]

One Dimension Filters Another Dimension in Power BI

I often get this question after I explain about the star-schema. The question is that both my dimensions are filtering my fact table values, but how can I get one dimension filtering another dimension? for example, how can I get only the list of products that have been purchased by this customer? In this article, Read more about One Dimension Filters Another Dimension in Power BI[…]

Why My Values are Not Showing Correctly in Power BI?

I have written previously about what is a fact table, and what is the dimension table, and how they relate to each other in a Power BI data model. However, still I see when people use these tables in their model, they get ambiguity of what table should be used for what, and if they Read more about Why My Values are Not Showing Correctly in Power BI?[…]

Top 10 RADACAD Blog Posts of 2018

With getting 2018 wrapped up, I would like to thank you all for visiting our blogs and giving us your most valuable feedback. Here in this post, I’ll point out some of the most viewed articles we have shared and links to our books. 2018 was a year for me that I did moderate on writing Read more about Top 10 RADACAD Blog Posts of 2018[…]

UseRelationship or Role-Playing Dimension; Dealing with Inactive Relationships in Power BI

In a Power BI model, relationships are important for passing filters, filter propagates through relationships. However, sometimes you create the relationship between two tables, and the relationship is a dashed line. In this post, I’ll explain to you everything you need to know about a dashed relationship, or as it called Inactive relationship. I will Read more about UseRelationship or Role-Playing Dimension; Dealing with Inactive Relationships in Power BI[…]

Data Preparation; First and Foremost Important Task in Power BI

I’ve talked about Data Preparation many times in conferences such as PASS Summit, BA Conference, and many other conferences. Every time I talk about this I realize how much more I need to explain this. Data Preparation tips are basic, but very important. In my opinion as someone who worked with BI systems more than Read more about Data Preparation; First and Foremost Important Task in Power BI[…]