Performance Design Tip for Power BI: Be Careful of Dates

I have written about Date Dimension in Power BI in many posts, and it makes sense now to explain one of the most common performance challenges that I see in some of the models. Sometimes, your model size grows significantly big, and you have no idea why!? In this article, I will show you one Read more about Performance Design Tip for Power BI: Be Careful of Dates[…]

Power BI Date Dimension; Default or Custom? Is It Confusing?

If you have worked with Power BI for some time, you know that there are two types of the Date dimensions; Custom or built-in/Default. It is always confusing for people, that which date dimension is good to use, and what is the difference between these two approaches. Also based on the selection of the type Read more about Power BI Date Dimension; Default or Custom? Is It Confusing?[…]

Create a Date Dimension in Power BI in 4 Steps – Step 3: Public Holidays

In last two steps you learned how you can create a date dimension that has calendar columns, and fiscal columns. In this step we are going to look at how Power Query can be leveraged to fetch public holidays live from APIs, and add that information into the date dimension. This step shows the importance Read more about Create a Date Dimension in Power BI in 4 Steps – Step 3: Public Holidays[…]

Create a Date Dimension in Power BI in 4 Steps – Step 2: Fiscal Columns

In step 1 of creating date dimension I explained how to create the base query with calendar columns. In this post I will explain how to add fiscal columns calculated in the date dimension. Many of business reports generates on fiscal year, fiscal quarter, and fiscal period, so having fiscal columns is important part of Read more about Create a Date Dimension in Power BI in 4 Steps – Step 2: Fiscal Columns[…]

Create a Date Dimension in Power BI in 4 Steps – Step 1: Calendar Columns

I have written multiple blog posts so far about creating a date dimension. However, I still get the question about how to create a date dimension. In this series of blog posts I  am going to explain in details how you can create a date dimension easily in Power BI (based on Power Query). this Read more about Create a Date Dimension in Power BI in 4 Steps – Step 1: Calendar Columns[…]

Data Dimension in Power Query – Public Holidays Fetched Live

In previous post I’ve generated a date dimension with Power Query M script. In this post I will add public holidays to the date dimension from live websites. This post only considers New Zealand public holidays, but once you’ve learned how to deal with data, you can apply similar transformations with small changes to any Read more about Data Dimension in Power Query – Public Holidays Fetched Live[…]

Script to Generate Date Dimension with Power Query M – With Financial Columns

  There are many date dimensions scripts on the internet, and even there are some scripts for the Power Query (Thanks to Chris Webb for his very early version of the date dimension, and also to Matt Masson for his version of Date Dimension). I’ve built a date dimension from scratch (not a copy or Read more about Script to Generate Date Dimension with Power Query M – With Financial Columns[…]

Script to Generate and Populate Date Dimension Version 2: Adding Multiple Financial Years

Almost a year ago I published first version of T-SQL script to generate and populate a general purpose date dimension here. Today I want to publish the second version of that date dimension which has some corrections (fiscal calendar calculation fixed), and additional attributes (such as current year, current month, and current day) Multiple countries Read more about Script to Generate and Populate Date Dimension Version 2: Adding Multiple Financial Years[…]

Script for Creating and Generating members for Time Dimension

Time Dimension is an important dimension in most of the Data Warehouses, especially when requirement for keeping hours, minutes, and seconds is vital for the business. Some blog and books and articles consider time dimension as a dimension that contains date columns, but in this post I only focus on the Time part of it, Read more about Script for Creating and Generating members for Time Dimension[…]