Prihláste sa
SELECT first_name, last_name, count(*) films
FROM actor AS a
JOIN film_actor AS fa USING (actor_id)
GROUP BY actor_id, first_name, last_name
ORDER BY films DESC
LIMIT 1;
first_name last_name films
--------------------------------
GINA DEGENERES 42
SELECT payment_date, amount, sum(amount) OVER (ORDER BY payment_date)
FROM (
SELECT CAST(payment_date AS DATE) AS payment_date, SUM(amount) AS amount
FROM payment
GROUP BY CAST(payment_date AS DATE)
) p
ORDER BY payment_date;
payment_date amount sum
-------------------------------------
2005-05-24 29.92 29.92
2005-05-25 573.63 603.55
2005-05-26 754.26 1357.81
2005-05-27 685.33 2043.14
2005-05-28 804.04 2847.18
2005-05-29 648.46 3495.64
2005-05-30 628.42 4124.06
2005-05-31 700.37 4824.43
2005-06-14 57.84 4882.27
2005-06-15 1376.52 6258.79
2005-06-16 1349.76 7608.55
2005-06-17 1332.75 8941.30
...