SQL portfolio
Data models that set the stage for great dashboards
Writing clean, modular SQL ensures every visualization is grounded in accurate, trustworthy data.
Customer Engagement Analysis with SQL & Tableau
Analytical queries and Tableau dashboards that surface how students learn, purchase, and revisit content on a digital platform.
SQL approach: CTEs for modular analytics, reusable views, and analytical queries that feed visual storytelling.
Query highlights
- CTEs to segment ratings, minutes watched, and purchases.
- Reusable views for consistent reporting across dashboards.
- Targeted queries to uncover top purchasing countries and months.
Insights unlocked
- English-speaking regions dominate purchases, highlighting localization opportunities.
- High engagement but low conversion in India and Nigeria prompted regional pricing experiments.
- Odd-month campaigns outperformed even months, confirming marketing pulses.
- Introductory courses dominated — a chance to build structured progression paths.
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Let’s optimize your data layer
From schema design to performance tuning, I can help teams trust the data powering their dashboards.