App Building & Devbeginner
Database
Definition
An organised system for storing and retrieving data. Apps use databases to save user accounts, orders, content, settings, anything that needs to persist.
Why it matters
Every app that stores data needs a database. Choosing the right one (SQL vs. NoSQL, hosted vs. self-managed) has long-term implications for speed, cost, and scalability.
Example
A founder's course platform stores users, courses, lessons, and purchase history in a PostgreSQL database hosted on Supabase.
Related terms
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