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RAG and AI agents solve different problems in modern AI systems. Learn how RAG retrieves knowledge, how AI agents reason and take action, and how Agentic RAG combines both approaches.

Retrieval-Augmented Generation (RAG) connects LLMs with external knowledge to produce more relevant and grounded answers. Learn how RAG works, including chunking, embeddings, vector databases, retrieval, reranking, hybrid search, GraphRAG, Agentic RAG and evaluation.

Learn PostgreSQL from scratch with this beginner-friendly guide covering databases, SQL queries, tables, CRUD operations, keys, JOINs, indexes, transactions, and real-world application development.

Microservices architecture is a modern approach to building applications as a collection of small, independent services. In this beginner-friendly guide, learn how microservices work, why companies use them, their advantages and challenges, and the best practices for designing reliable systems.

Learn Git and GitHub from scratch with this beginner-friendly guide. Discover how version control works, create repositories, make commits, use branches, merge changes, and collaborate through pull requests. Build Git skills and understand the workflow used by modern software developers.

Discover what REST APIs are and how they power modern websites, mobile apps, and cloud services. This beginner-friendly guide explains HTTP methods, JSON, authentication, status codes, and real-world examples in simple terms.