Full-Text Search: PostgreSQL vs Elasticsearch vs Algolia
Full-text search often looks easy at the start. You store text, run a query, and return results. However, once users...
Time-Series Data in PostgreSQL with TimescaleDB
Time-series data appears everywhere: metrics, logs, financial events, sensor readings, and analytics dashboards. Although PostgreSQL can store time-based data, it...
Database Transactions and Isolation Levels Explained
Transactions are the foundation of reliable database systems. Every payment, order, or state change you trust in production depends on...
Prisma ORM: The Complete Guide for Node.js and TypeScript
Prisma has quickly become one of the most popular ORMs in the Node.js ecosystem. Its core promise is simple: type-safe...
Database Indexing Strategies: B-Tree, Hash, GIN, and GiST
Indexes are one of the most powerful performance tools in any database—and one of the easiest to misuse. Adding an...
Database Connection Pooling: PgBouncer, HikariCP, and Best Practices
Database connection pooling is one of those topics that feels optional—until your system falls over. Sudden traffic spikes, slow queries,...
Redis Pub/Sub for Real-Time Applications
Real-time applications need fast, simple message delivery. Redis Pub/Sub provides exactly that: lightweight publish–subscribe messaging with extremely low latency. When...
Redis Data Structures Beyond Caching: Lists, Sets, Sorted Sets
Redis is often introduced as a fast in-memory cache, but treating it only as a cache leaves most of its...
MongoDB Aggregation Pipeline: From Basics to Advanced
MongoDB’s aggregation pipeline is one of its most powerful features—and one of the most misunderstood. It allows you to transform,...