Put the product rules in Postgres, then sleep on Friday.
Rated 4.7 (3)
Most product bugs are data bugs wearing a UI costume. This course is how Amelia keeps Postgres honest: constraints, indexes you can explain, and migrations that do not ruin Friday.
You will model a real feature, then ship the schema as if a teammate has to live in it.
2 sections · 4 lessons
1. The rules
1.1 Why the database is a product
Preview: constraints as product language.
1.2 Not-null and the real world
Optional columns are often unfinished thought.
2. The query
2.1 Read the plan
Explain is a sentence, not a screenshot.
2.2 A migration you can reverse
Friday ships need a way back.
Rated 4.7 (3)
Hannah Cole
Sep 5, 2026
Rated 4.0
Wanted one more migration example. Still the one I send teammates.
Sofia Lindgren
Sep 4, 2026
Rated 5.0
The explain lecture paid for itself on a slow list page.
Noah Patel
Sep 3, 2026
Rated 5.0
I finally stopped treating constraints as optional.