Guides
5 guides on sql. Practical writing from the team building Atlas, useful whether or not you buy anything.
Your SQL DDL already defines every table, key, and constraint. Turning CREATE TABLE statements into an ERD is a translation exercise, and this guide gives you the mapping.
Schema decisions are hard to reverse once real data depends on them. These battle-tested best practices help you get naming, keys, constraints, and types right the first time.
An existing database already contains a complete data model in its SQL. This guide shows how to read DDL and turn tables, keys, and constraints into a clear entity relationship diagram.
Normalization is the discipline of storing each fact in exactly one place. This guide explains 1NF, 2NF, and 3NF with a running example and shows when normalizing further stops paying off.
Good schema design is a repeatable process, not a talent. This walkthrough takes you from requirements to a normalized, constrained, indexed schema using a worked example.
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