Databases

20 guides planned

SQL, PostgreSQL, MongoDB, schemas, JOINs, indexes, ORMs, Prisma, Supabase, Redis — where your data lives, how it's organized, and how not to lose it all.

Data Focused Production Ready

Guides

20

Guides Coming Daily

New Databases guides are being published every day. Check back soon — we're adding content around the clock.

← Browse All Topics

🗺 Suggested Path

1
What Is a Database? Tables, rows, the basics
2
SQL Fundamentals The language of data
3
PostgreSQL Setup The most popular choice
4
Relationships & JOINs Connecting tables together
5
ORMs How AI writes database code

Topics Covered

What We Cover in Databases

🔢

SQL Fundamentals

SELECT, INSERT, UPDATE, DELETE, JOINs — the language that manages most of the world's data.

🐘

PostgreSQL

The production database AI loves most. Tables, indexes, relationships, backups.

🍃

MongoDB

Document databases, collections, NoSQL thinking — when your data doesn't fit neat rows.

🔗

ORMs & Prisma

How AI abstracts database queries into code — and what that abstraction is hiding.

⚡

Supabase

The open-source Firebase alternative AI recommends most often. Real-time, auth built in.

🔴

Redis

Caching, sessions, pub/sub — the fast in-memory database that makes apps feel instant.

← Backend & APIs
Infrastructure →