Track 18 — The Fullstack Career
18.3: Database Query Optimization
Cost of N+1 problems, indexing ROI, and query refactoring business cases.
3 Lessons~45 min
🎯 What You'll Learn
- ✓ Identify N+1 costs
- ✓ Calculate indexing ROI
- ✓ Refactor slow queries
- ✓ Measure DB load savings
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3 lessons with hands-on exercises, metric cards, and assessment checklists.
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