Redis is an open-source, in-memory data structure store used as a database, cache, message broker, and queue. This guide teaches you Redis from the ground up — covering data types, core commands, persistence, pub/sub, and practical use cases like caching and session management.
Database design is one of the most foundational skills in computer science and software engineering. This guide covers the core concepts from university-level database courses — relational theory, SQL, normalization, indexing, transactions, and NoSQL — providing a rigorous foundation for anyone working with data.