Excel to BI

DAX CALCULATE Function: Complete Tutorial with 50 Examples (Part - II)

2026-10-28T12:00:00.000+05:30

You now know how to add, replace, and remove filters. This section builds on that with five new skills: preserving existing filters, controlling exactly which filters get cleared, filtering with logic that Boolean expressions can't handle, shifting dates, and using variables to keep measures readable. The time intelligence examples (18&

DAX CALCULATE Function: Complete Tutorial with 50 Examples

2026-10-26T12:00:00.000+05:30

You build a simple measure. It adds up sales. It works perfectly, until someone asks, "Can we see that for last year only?" Or "What share of total is this product?" Or "How does it compare to the same period last year?" Every one of those questions needs the same thing: the ability to change the question a measure is

SUM vs SUMX in DAX: 20 Examples and When to Use Each

2026-10-25T12:45:32.463+05:30

You write a measure with SUM, and it works. Then someone asks for revenue before discounts, and SUM suddenly can't help. You switch to SUMX, the numbers appear, and you are left wondering why one function worked and the other didn't. If that sounds familiar, you are in good company. The SUM vs SUMX question trips up beginners and experienced developers alike. The short version: SUM adds up

Calculated Columns vs Calculated Tables

2026-10-22T00:57:19.281+05:30

Picture a developer who needs a margin figure in a report. She adds a new column to the Product table and types a ratio. Every row looks right. Then she drops the column into a matrix, and the Grand Total shows a number nobody can explain. Now picture the opposite problem. A model has grown heavy and slow to refresh because every new idea became another column. Nobody remembers why half of them

Row Context vs. Filter Context in DAX Explained Simply

2026-10-18T01:09:12.638+05:30

Have you ever written a DAX measure that returns the same total on every row, ignores the result you expected from a slicer, or throws a “single value cannot be determined” error? If you have worked with Power BI, Analysis Services Tabular, or DAX-based semantic models, chances are you have encountered at

Calculated Columns vs. Measures in DAX: When to Use Each

2026-10-17T17:15:43.619+05:30

Almost every DAX beginner asks the same question: "Should I create a calculated column or a measure?" Pick wrong and your report can show incorrect totals, refresh slowly, or carry a model that's much bigger than it needs to be. The good news is that there's a simple rule, and once you see why it works, you'll rarely have to think about it again. What you'll learn What calculated columns

DAX for Beginners: A Practical Guide to Power BI DAX

2026-10-17T14:56:13.440+05:30

Have you ever built a Power BI report where the numbers change every time someone selects a different year, product, or region? What if you could write a calculation once and let Power BI return the correct result automatically, regardless of how users explore the report? That is one of the most powerful things you can do with DAX (Data Analysis Expressions). If you already know Excel formulas,

7 DAX Patterns I Use in Every Enterprise Model

2026-10-15T15:47:13.049+05:30

A Power BI model can have hundreds of measures and still deliver unreliable insights. The difference between a model that simply works and one that scales across an enterprise often comes down to how you write your DAX.After working with complex reporting requirements, one thing becomes clear: the best DAX solutions aren't necessarily the most complicated. They're the ones you can reuse,