ScaleLab AI
Tradeoff Lab
Compare architecture decisions with clear pros, cons, cost impact, and complexity impact.
SQL vs NoSQL
SQL
Pros
- • strong consistency
- • transactions
- • rich querying
Cons
- • harder horizontal writes
- • schema migrations
- • hot primary risk
NoSQL
Pros
- • horizontal scale
- • flexible schema
- • high write throughput
Cons
- • limited joins
- • eventual consistency tradeoffs
- • access pattern design upfront
Cost impact: SQL starts cheaper operationally, NoSQL can reduce unit cost at very high scale.
Complexity impact: NoSQL pushes complexity into data modeling and consistency handling.