MongoDB (part1): Basics

MongoDB is a distributed document-oriented NoSQL database. It is used for storing massive volumes of data. It differs from relational databases in its flexibility and performance.

Structure

• MongoDB contains several collections (can be understood as tables in RDBMS).
• Each collection contains several documents (each document can be understood as a record in RDBMS). Document has structure that is similar to JSON file, called BSON. It does not necessary have defined structure like in RDBMS.

differences between MongoDB and RDBMS (1/2)

differences between MongoDB and RDBMS (2/2)

Document structure

Create new database and collection

Syntax:

use <new database name>

db.<new collection name>.insertOne({})

CRUD (Create, Read, Update, Delete)