About Me

I’m Tarun Gupta, a Business Intelligence professional focused on building reliable, scalable Power BI solutions that actually support business decisions.

For the past 5+ years, I’ve worked hands-on with Power BI, DAX, and data modeling, building reports, optimizing slow measures, fixing broken totals, and redesigning models that stopped working once data volumes grew.

I don’t write from theory.

Everything on this site comes from real project work:

• Debugging DAX that behaves unexpectedly
• Fixing totals that don’t match row-level logic
• Improving performance when queries take seconds instead of milliseconds
• Cleaning up models that became fragile as complexity increased

Over time, I realized most BI problems aren’t about visuals.

They’re about logic, structure, and performance.

That’s why Analyst in Action exists.

Who This Is For

This blog is for professionals who already work with Power BI and want to go deeper.

If you:

• Write DAX regularly
• Build semantic models
• Care about performance
• Want cleaner, more maintainable solutions

You’ll find practical, experience-driven content here.

This is not marketing content.
It’s not surface-level tutorials.

It’s applied Business Intelligence.

What You’ll Find Here

• Clear breakdowns of DAX patterns and context behavior
• Data modeling principles that scale
• Performance tuning using DAX Studio and Tabular Editor
• Real-world mistakes and how to avoid them
• Practical techniques I use in production environments

Every article is written to make you sharper, not just informed.

Why I Write

Because I’ve made the mistakes.

I’ve written inefficient measures. Built messy models. Over-engineered solutions.

Fixing those mistakes taught me more than any documentation ever could.

This blog is my working notebook, shared publicly so others can learn faster.

Connect

If something here helped you or you’d like to connect:

• Email: guptatarun130@gmail.com
• LinkedIn: Connect with me here

LinkedIn Newsletter

I also share shorter Power BI insights through my
LinkedIn newsletter.

If you prefer focused, bite-sized learning, that’s a good place to start.