Database#
Working with databases is a core skill for most Python applications, from web development to data analysis. SQLAlchemy is Python’s most popular database toolkit, providing both a low-level SQL expression language (Core) and a high-level Object-Relational Mapper (ORM). This section covers SQLAlchemy from basic connections and queries to advanced patterns like relationships, eager loading, and complex joins. Whether you’re building a simple script or a large-scale application, these examples will help you interact with databases efficiently and safely.