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ORMs hide the queries that actually run in production. Learn PostgreSQL from indexes to query plans, write SQL your DBA would approve, and fix the n+1 and dashboard-timeout bugs that ship to real users.
Message a mentor about fit, prerequisites, or where to start. Replies come on WhatsApp, usually within a day.
Engineers are learning here from
From your first SELECT to production PostgreSQL mastery. Query 100k+ real orders from a Brazilian e-commerce platform while learning JOINs, window functions, cohort analysis, indexing, partitioning, and stored procedures.
From SELECT to production PostgreSQL mastery on 100k+ real e-commerce orders.
What you'll ship
What you'll learn
Curriculum
Welcome and SQL foundations
Your first queries against 100k+ real e-commerce orders.
Aggregation and grouping
Transform raw rows into business insights.
Conditional logic and joins
Add intelligence with CASE and connect your entire dataset.
Subqueries, CTEs, and set operations
Compose complex queries from simple building blocks.
Date and string functions
Master time-series analysis and text manipulation.
Window functions
The most powerful analytical tool in SQL.
Advanced analytics
Real business analytics: cohort, RFM, funnel, and CLV.
PostgreSQL power features
Unlock PostgreSQL-specific superpowers beyond standard SQL.
Views, indexes, and query performance
Make your queries fast and your logic reusable.
Schema design and partitioning
Design databases that scale from thousands to billions of rows.
Transactions, procedures, and triggers
Write safe concurrent code and automate with server-side logic.
Course finale
Prove your mastery and plan your next steps.
Who it's for
who avoid writing SQL and rely on ORMs but want to understand what happens under the hood
who can write basic queries but struggle with JOINs, window functions, and performance tuning
who want to build dashboards and reports without waiting for the data team
FAQ
No. We start from your first SELECT statement. If you have never written SQL before, this is the right starting point.
PostgreSQL via Docker. The workshop includes Docker Compose setup so you are running queries within minutes.
No. Every lesson runs against a real 100k+ order dataset from a Brazilian e-commerce platform. You write real queries, not textbook examples.
About 16 hours of hands-on work. Go at your own pace, the content is always available.
Pricing
One subscription unlocks every paid course and workshop replay. Pick yearly or monthly.
Unlock with Pro
You save 47% with regional pricing
Billed annually. Cancel anytime.
Still deciding? Ask Param a question
From SELECT to production PostgreSQL mastery on 100k+ real e-commerce orders.
Ultimate PostgreSQL Bootcamp: Go from Beginner to Expert
From $16/mo with Pro