💬
✉️
📸
▶️
Loading…
Loading…
Engineers don't memorise database names. They reason from workloads. This module trains that exact thinking.
Workload-first reasoning
Every choice starts from access patterns, not product names.
Tradeoffs, not answers
The same data can live in multiple systems for different reasons.
Engineering constraints
Scale, schema flexibility, and query patterns drive architecture.
Progressive branching
Each step reveals one layer of the decision tree — no overload.
How This Works
Each decision narrows the database universe. You'll traverse 3–4 layers of engineering tradeoffs before reaching concrete database families. Every ignored branch remains visible — architects understand the roads not taken.