- MongoDB
Guide to MongoDB, the document-oriented NoSQL database, covering its data model, CRUD operations, indexing, aggregation, replication, sharding, and best practices.
- MySQL
Guide to MySQL, the popular open-source RDBMS, covering storage engines, data types, CRUD, indexing, views, procedures, triggers, replication, and best practices.
- PGX
PGX (pgrundev/pgx, AGPL-3.0) is a Rust runtime that serves hundreds to thousands of isolated Postgres databases from one process by keeping a single Postgres 18.6-compatible engine, minting databases on connect and branching them with ZFS copy-on-write — built for CI, previews and agent sandboxes, explicitly not production.
- PostgreSQL
Guide to PostgreSQL, the extensible open-source RDBMS, covering data types, JSON/JSONB, arrays, full-text search, index types, window functions, CTEs, and best practices.
- Redis
Guide to Redis, the in-memory data structure store used as a database, cache, and message broker, covering its use cases, data types, persistence, and best practices.