What is Database?

1. A database is a structured collection of data
2. That is stored and organized in a way that makes it easy to retrieve, manage, and update.

Types of Database

1. Relational Databases (RDBMS)
2. NoSQL Databases (MongoDB)
3. NewSQL Databases
4. Time Series Databases
5. Object-Oriented Databases
6. Graph Databases
7. Hierarchical Databases

What is MongoDB?

1. MongoDB is a NoSQL database.
2. It stores data in a flexible (no table format)
3. JSON-like format called BSON (Binary JSON).

SQL vs MongoDB

SQL Terms and their MongoDB Equivalents:

1. SQL: database → MongoDB: database
2. SQL: tables → MongoDB: collections
3. SQL: rows → MongoDB: documents (BSON)
4. SQL: columns → MongoDB: fields