The answer
SQL: MySQL, PostgreSQL, SQLite. NoSQL: MongoDB (document), Redis (key-value), Cassandra (column). Each has different strengths for different data models and use cases.
SQL vs NoSQL Databases Explained: How to Choose for Your App
What are examples of SQL and NoSQL databases?
More FAQs in SQL vs NoSQL Databases Explained: How to Choose for Your App
SQL databases are relational with tables, rows, and a fixed schema, using ACID transactions and complex joins. NoSQL databases are non-relational with flexible schemas, designed for horizontal scaling and document-like data.
When data is highly relational (users, orders, products with connections), when ACID transactions are essential (banking, payments), and when complex queries and joins are common.
When data is document-like (JSON), when the schema evolves rapidly, when horizontal scaling is needed, and when you want fast iteration without migrations.
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