What is NoSQL?
Databases that store data differently from traditional tables, often as flexible documents or key-value pairs
Why It Matters
NoSQL databases can be faster and more flexible for certain types of data, especially when your data structure changes frequently
Real-World Example
Storing user preferences as a flexible document that can have different fields for different users
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Related Terms
Database
An organised collection of data that your application can store, retrieve, and update
SQL
A language for communicating with databases, used to create, read, update, and delete data
MongoDB
A popular NoSQL database that stores data as flexible documents similar to JSON
PostgreSQL
A powerful, free, open-source database known for reliability and advanced features
Schema
A blueprint that defines the structure of your data, including fields and their types
Migration
A controlled way to change your database structure over time, with the ability to undo changes