How to Answer “How Many?” and “How Much?” in One SQL Query
COUNT and SUM are the two functions you’ll use every single day
How to Find Why Customers Cancel (Using SQL Pattern Analysis)
Cancellation data tells you more than booking data ever will
How to Build Customer Tiers With a Single SQL Query
Label customers as VIP, Standard, or At-Risk without Excel
How to Present SQL Insights to Executives Who Don’t Care About Code
Three techniques that turn technical analysis into business impact
How to Rank Items Within Categories (Without Grouping Hell)
Window functions let you compare and rank without losing detail
Your First JOIN – Connecting Customers to Their Bookings
The one pattern that unlocks 80% of real-world business queries
Feeling Overwhelmed by Your Data? Use The Marie Kondo Blueprint
This framework helps you organize, filter, and make sense of complex data
How to Turn Monthly Revenue Data Into Executive-Level Insights (Code Included)
This one query pattern works at any company.
The WHERE vs HAVING Mistake That’s Sabotaging Your SQL Queries
Why your GROUP BY queries keep failing (and how to fix it)
Build Executive Dashboards with Python & Plotly Dash (Code Included)
Business leaders are clueless. That’s what a lot of business analysts think because they create something “awesome” with a dataset and then it gets ignored. Unfortunately, these… Read More »Build Executive Dashboards with Python & Plotly Dash (Code Included)