Learn how Power BI’s September 2026 full-text search preview works. Configure a persisted column index, find matching feedback with TEXTCONTAINS, rank it with TEXTSIMILARITY, and avoid common setup and scoring mistakes.

Learn when to use Power BI DirectQuery, how to improve report performance, and which modeling, DAX, source-design, and visual mistakes to avoid.

Power BI's secret sauce is DAX (Data Analysis Expressions) – a formula language that lets you create dynamic calculations and advanced analytics in your reports. If you’ve ever used Excel formulas, DAX will feel familiar (think of it as Excel formulas on steroids!), but it’s built for Power BI’s relational data model and interactive visuals. In short, DAX empowers Power BI users to turn raw data into meaningful insights with custom calculations that go far beyond out-of-the-b

In today’s data-driven world, knowing how to analyze and understand data is more critical than ever. Two prominent players stand out for those eager to learn: Power BI and Excel. Both tools are widely utilized, yet they have distinct strengths and applications. If you’re trying to decide which one to learn first, this guide will help you make an informed choice. Let’s explore each tool in detail, highlighting its features and benefits, to help you determine the best starting