Dave As Data Analysts, we always strive to ensure our reports and dashboards are up-to-date. Displaying the last refresh date helps users trust the data they’re viewing. In this simple tutorial we will add a card displaying the last refresh time to a Power BI dashboard. As always, we will use a simple data set consisting … Read more
As a Data analyst, you often need to bring together cell values from entire columns or part of them. This tutorial will guide you through the process of concatenating multiple columns in Power BI, using a practical HR scenario. In this tutorial we will assume a single table named “Employees” with the following columns: EmployeeID … Read more
How can you replace these blank values with the string “Unknown” to ensure all records are accounted for in your regional sales analysis? Replace empty cells with string in Power BI In Power BI, we can easily handle blank values using both Power Query and DAX. We will explore both methods using a fictitious ‘Customers’ … Read more
User Question: “I have a column in my Power BI table that contains lists of values, say for example, a list of product categories. How can I extract these values into separate rows so that i can analyze my dataset? In Power BI, you often encounter data where multiple values are stored in a single … Read more
User Question: “I manage a dashboard showing HR related data in Power BI and need to add new employee data each month without rebuilding the entire dataset. Is there a way to append rows to an existing Power BI table without starting from scratch? Our team wants to maintain historical data while adding new entries … Read more
User Question How can I aggregate sales data by both product category and sales region in Power Query? I need to calculate total sales and average unit price for each combination of these two columns. Aggregate data by multiple columns in Power BI Grouping by multiple columns in Power Query allows you to analyze data … Read more
A common use case when analyzing campaign performance is to pre-process the data for analysis. As part of the data cleansing, we’ll need to replace null values. The question is how to do it safely, without skewing the data source that will be used in your reports and dashboards. In a nutshell, in Power BI … Read more
User Question: “I’m working on a presentation for my research project, and I need to cite various bibliography sources throughout my slides. How can I effectively add references to my PowerPoint presentation without cluttering the slides? Is there a way to manage and format these citations properly?” Step-by-Step Instructions: This guide will walk you through … Read more
Here’s a question from a colleague: “I’ve created a sales performance dashboard in Power BI, but it looks a bit plain. How can I add icons to my table and card visuals to make the data more visually appealing and easier to understand at a glance?” Adding icons to your Power BI visuals can significantly … Read more
Let’s assume that your product team wants to categorize items based on their profit margin. Part of data pre-processing is to replace numerical values with descriptive labels. How can you implement this conditional value replacement to quickly identify high-performing and underperforming products? In this tutorial we will use both Power Query and DAX to replace … Read more