2 posts

Database

What is MongoDB? Document Database and When to Choose NoSQL
Database

What is MongoDB? Document Database and When to Choose NoSQL

MongoDB is a document database that stores data as flexible JSON/BSON, ideal when schema changes frequently. Learn CRUD, Aggregation Pipeline, Replica Sets, and when to choose MongoDB over PostgreSQL.

22 Jul, 2026 3 min
What is PostgreSQL? The World's Most Advanced Open Source Relational Database
Database

What is PostgreSQL? The World's Most Advanced Open Source Relational Database

PostgreSQL is the leading open-source relational database management system, supporting ACID, MVCC, JSON/JSONB, and hundreds of extensions. Learn how to connect and query PostgreSQL with Python and Node.js.

26 Jun, 2026 4 min