How our SQL training actually works
Each module takes 2-3 hours and includes video explanations, live query examples, and hands-on exercises. You work in a sandboxed database environment where mistakes don't matter.
The curriculum follows what companies actually need. We surveyed 200 tech leads about which SQL skills their teams were missing. That data shaped our entire course structure.
- Write queries against datasets with 500k+ rows to understand performance impact
- Debug slow queries using execution plans and indexing strategies
- Build normalized schemas and learn when breaking rules makes sense
- Handle complex joins, subqueries, and window functions for reporting
- Work with transactions, locks, and concurrent access patterns
- Optimize queries that aggregate millions of records efficiently