SQL Databases
SQL databases (PostgreSQL, MySQL, SQLite) store data in structured tables with defined relationships. They’re great for:
- Complex queries and joins
- Data integrity with ACID transactions
- Well-defined schemas
NoSQL Databases
NoSQL databases (MongoDB, Redis, DynamoDB) offer flexible schemas. Best for:
- Rapid prototyping
- Unstructured or semi-structured data
- Horizontal scaling
Which One?
For most web apps, start with SQL. It’s battle-tested, widely supported, and tools like Prisma make it very developer-friendly.