PostgreSQL with TypeORM
PostgreSQL is a powerful, open-source relational database management system. Unlike MongoDB which stores data as documents, PostgreSQL stores data in structured tables with rows and columns, enforcing a strict schema and supporting powerful relationships between data.
Basics
Connect PostgreSQL to Express with TypeORM — database setup, entities, and CRUD operations.
Advanced TypeORM
Advanced TypeORM — OneToMany and ManyToMany relations, plus complex queries with QueryBuilder.