Connecting a Database to Your Vibe-Coded App

What a database actually does\n\nIt remembers things after the page reloads. That is it. Users, posts, orders, bookings — all rows in tables.\n\n## Tables before features\n\nSketch your tables first: what things exist, and what fields does each one need?\n\n## Security is not optional\n\nRow-level rules decide who can see what. Ask your AI builder to explain the rules it wrote in plain English, and read the answer.\n\n> Placeholder content — replace with your real tutorial copy.