diff --git a/pmikhailov/postgresql/joins.sql b/pmikhailov/postgresql/joins.sql index 7a90e1b..e83b069 100644 --- a/pmikhailov/postgresql/joins.sql +++ b/pmikhailov/postgresql/joins.sql @@ -44,7 +44,7 @@ FROM LEFT JOIN order_items oi ON o.id = oi.order_id INNER JOIN - users u ON o.id = u.id + users u ON o.user_id = u.id INNER JOIN products p ON oi.product_id = p.id; @@ -69,7 +69,7 @@ SELECT FROM users u LEFT JOIN - orders o ON u.id = o.id + orders o ON u.id = o.user_id WHERE o.user_id IS NOT NULL