A category of databases that store data in non-tabular formats — documents, key-value pairs, graphs, or wide columns — optimized for specific access patterns.
NoSQL databases like MongoDB (documents), Redis (key-value), Neo4j (graph), and Cassandra (wide-column) sacrifice some relational features for scalability, flexibility, or performance. They're ideal when data doesn't fit neatly into tables or when horizontal scaling is critical.
Using Redis as a caching layer and Celery message broker alongside PostgreSQL as the primary data store.
NoSQL complements rather than replaces relational databases — most production systems use both, choosing the right tool for each data access pattern.
Atomicity, Consistency, Isolation, Durability — the four properties that guarantee database transact...
A data structure that speeds up query performance by creating a fast lookup path to rows based on sp...
A version-controlled change to a database schema — adding tables, modifying columns, or creating ind...
The process of organizing database tables to reduce data redundancy and improve data integrity by fo...
Horizontally partitioning data across multiple database instances, distributing load and enabling st...
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