NoSQL and MongoDB In-Depth Guide
Part 1: NoSQL Fundamentals
What is NoSQL?
NoSQL ("Not Only SQL") represents a class of database systems designed to handle diverse data models beyond the traditional relational model. These databases emerged to address limitations of relational databases when dealing with:
- Massive scale applications
- Semi-structured and unstructured data
- Agile development with changing schemas
- High throughput requirements
- Distributed architecture needs
Types of NoSQL Databases
1. Document Stores
- Store data in document-like structures (JSON, BSON, XML)
- Examples: MongoDB, CouchDB, Firestore
- Use case: Content management, e-commerce, blogging platforms
2. Key-Value Stores
- Simplest NoSQL type, storing data as key-value pairs
- Examples: Redis, DynamoDB, Riak
- Use case: Caching, session storage, user preferences
3. Column-Family Stores
- Store data in column families (groups of related data)