mirror of
https://github.com/rstacruz/cheatsheets.git
synced 2026-04-27 03:00:45 -04:00
291 B
291 B
title
| title |
|---|
| SQL Join |
SELECT * FROM order_items LEFT OUTER JOIN orders ON order_items.order_id = orders.id
__ __
/ /\ \
| A |u |B |
\___\/__ /
- inner join =
u - left outer join =
A+u - right outer join =
u+B - full outer join =
A+u+B