I wrote several row-level security articles so far, and a book. I explained how to restrict access to the data using row-level security approaches. However, one of the questions I got recently is this: “I want users to see one another’s sales information, but not to see who others are! How can I do that Read more about Show the information but not the details: Power BI Data Masking[…]
I have previously written a blog post about what the ALL function in Power BI is, and how it helps in working with filters in your report. However, still I get many students confused about how to use this function, which parameter to pass to it. This blog post is explaining that in detail. Why Read more about How to Use ALL in a DAX Expression in Power BI[…]
If you don’t have a date table with a column that represents the day of the week name (Saturday, Sunday, Monday etc) or number (from zero to six, or from one to seven), and you just have a date field, which you want to quickly get the day name of the week, here is a Read more about Get the Day of the Week Name and Number in Power BI Using DAX[…]
DAX is the analytical language in Power BI. Learning this language, however, comes with some difficulties. Part of that challenge is the way that functions work in DAX. Learning the output of functions is an important element of learning how and where you can use them. In this article, I’ll explain two types of outputs Read more about Power BI DAX Back to Basics: Scalar Vs. Tabular Functions[…]
Substring is one of the most common functions in many languages, However, there is no function named Substring DAX. There is a very simple way of doing it, which I am going to explain in this post. Substring means getting part of a string, for example from “Reza Rad”, if I want to get the Read more about Substring in DAX: How to get Part of String Field in Power BI Using DAX Expression[…]
Yesterday, I published a post about having a slicer that filters the rows in a table visual in Power BI that contains the characters from that slicer. A friend asked me what if we want to search for the first few characters? that means selecting the first character, then seeing all the possible second characters, Read more about Search for All the Texts in Power BI Table Visual with the First Three Characters Selected in the Slicer[…]
If you have a lot of text in a table visual in Power BI and want to search to find all texts with a specific character in it, I have a solution for you. You can have an alphabet slicer and use it to filter the table visual, the trick is to combine it with Read more about Search in Power BI Table Visual Using a Slicer For Contains Character Criteria[…]
In the previous article, I explained how you can use GROUPBY function in DAX to create an aggregated table. In this article, I’ll explain how you can use Summarize function for the same purpose. Summarize function gives you more control on how to create your aggregated table with some extra functions. Let’s see how it Read more about Aggregated Table in Power BI with Extra Options – Summarize Function in DAX[…]
There are many different ways you can create aggregations in Power BI, You can do it in the source (using the database t-SQL language), or using Group By operation in Power Query. You can also do it in DAX using some functions. One of the functions that can be used for grouping and aggregation is Read more about Aggregated Table in Power BI – Using GroupBy Function in DAX[…]
I have explained previously that you can use GenerateSeries function in DAX to create a list of number, date or time, or even currency values. However, sometimes you might need to create a list of text values. Such as alphabet; from “a” to “z” lowercase, or uppercase. The good news is that you can do Read more about Create a Table with A to Z Character Values in Power BI Using DAX[…]