SQL 美化 · 压缩 · 关键字大小写 · 逗号换行
SELECT u.id, u.name, count(o.id) AS order_count FROM users u LEFT JOIN orders o ON o.user_id = u.id WHERE u.status = 'active' AND o.created_at >= '2026-01-01' GROUP BY u.id, u.name ORDER BY order_count DESC;