LEFT JOIN1 / 10
A Left Join keeps all rows from the first table (or "left" table) and shows results from the second table (or "right" table) only where there's a match. If there's no match, it shows null for the values in the joined row. Try typing:
SELECT *
FROM cars
LEFT JOIN owners
ON cars.car_id = owners.car_id;Ctrl+Enter to submit
LEFT JOIN - Free SQL Practice Online
Practise LEFT JOIN with 10 free, interactive SQL exercises. You type real queries into your browser and get instant feedback on every answer - no database setup, no install, and no signup. It is a fast, hands-on way to learn SQL online and build query skills you can use at work.