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KNOWLEDGE HUB
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Power BI Error Handling: Build Reusable Queries That Work on Any Table
Dirty data does not announce itself. It arrives quietly as blank cells, "N/A" placeholders, stray zeros, or entirely empty columns that looked fine in the source system. Left untreated, these inconsistencies silently corrupt your totals, break your relationships, and cause scheduled refreshes to fail at the worst possible moment. This guide shows you how to stop patching issues one column at a time and build a small library of reusable M functions that handle every table inco

MirVel
May 177 min read


Power BI General Options Explained: Parallel Loading, Memory Limits, and Refresh Settings That Actually Matter
Learn how Power BI's parallel loading, memory limits, and General Options affect your dataset refresh speed. Compare Pro vs Premium settings with practical tips.

MirVel
May 177 min read


Native Query in Power BI: How to Write SQL Directly Against Your Data Source
Learn how to use native queries in Power BI to write SQL directly against your data source. Step-by-step guide with M code, tips, and a practice file included.

MirVel
May 137 min read


How to Build a Proper Date Table in Power BI
A practical step-by-step guide to building a clean Power BI date table, writing better time-intelligence measures, and avoiding the most common calendar mistakes.

MirVel
Apr 216 min read


Power BI Custom Connectors: Unlock Analytics for Every Corner of Your Organisation
Go beyond sales reports — connect Power BI to your IT, HR, finance, and admin systems using custom connectors. A practical guide to unlocking organisation-wide analytics.

MirVel
Mar 207 min read


Mastering DAX Queries in Power BI: Structure, Logic & Best Practices
Check out some of our FREE templates and materials. PRACTICE MATERIAL BELOW!👇 Introduction Ever wondered what happens behind the scenes when you drag a visual into Power BI? That’s DAX queries at work. While most users write DAX formulas to calculate measures or columns, DAX queries go one level deeper — they let you directly query your model, test logic, and debug calculations.In this post, we’ll break down what DAX queries are, how they work, their structure, examples, pit

MirVel
Nov 18, 20255 min read


External Tools in Power BI: A Deep Dive into the Essential Add‑Ons and Their Trade‑offs
Microsoft Power BI Desktop contains a rich set of modelling and reporting features, yet many power users enhance their workflow with external tools . These tools attach to the Analysis Services instance behind a PBIX/Power BI semantic model and allow advanced editing, scripting, performance analysis and automation. The External Tools ribbon lists all registered tools, and Microsoft warns that these are produced by independent developers; editing metadata outside Power BI De

MirVel
Oct 5, 202510 min read


Power BI: Relationships in Models – The Ultimate Guide
Introduction Building effective Power BI reports is not just about loading data and creating visuals—it’s about structuring your data model correctly. Relationships are at the heart of that structure. In this post, we’ll explore what relationships in Power BI are, why they matter, how to create and manage them, and some advanced tricks to avoid common pitfalls. Check out some of our FREE templates and materials. PRACTICE MATERIAL BELOW!👇 Understanding Relationships in Power

MirVel
Sep 28, 20253 min read


Mastering the CALCULATE Function in Power BI: A Step-by-Step Guide
If you're a moderately experienced Power BI user, you’ve likely encountered the CALCULATE function in DAX (Data Analysis Expressions). This is one of the most powerful and essential functions in the DAX language because it allows you to modify the context in which data is filtered and calculated. In this post, we’ll break down the structure of CALCULATE, walk through practical examples, explore advanced use cases, and show you how it can elevate your Power BI reporting. Che

MirVel
Sep 22, 20253 min read


From Data to Presentation: How to Combine Power BI and PowerPoint for Impactful Insights
Imagine spending hours perfecting your Power BI reports, only to struggle when trying to present them clearly to your stakeholders or audience. Power BI is excellent for interactive dashboards, but sometimes, a good old PowerPoint presentation is what you really need. The good news? Combining these two powerful tools can take your data storytelling to the next level. In this post, you'll discover simple yet powerful ways to seamlessly integrate Power BI reports into your Powe

MirVel
Jul 11, 20253 min read


Why Do Low-End Laptops Struggle with Large Excel & Power BI Data?
Ever tried opening a huge Excel file or running a complex Power BI report on a basic laptop, only to watch it crawl or freeze up? You’re not alone. Many of us have felt the frustration of our computer chugging like it’s stuck in molasses when handling big data. In this post, we’ll break down why this happens and what you can do about it. We’ll keep it casual and clear—no overly techy jargon—so you can understand the issues and find solutions without a headache. Let’s dive in

MirVel
May 28, 202520 min read
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