UPDATE `accounts` SET `premium_points` = `premium_points` + LICZBA_PKT WHERE SPRAWDŹ GRACZA CZY ONLINE = 1*
Update accounts set premium_points=premium_points + ile_tam_chcesz WHERE id IN (SELECT DISTINCT account_id FROM players WHERE online = 1);
UPDATE accounts SET premium_points = premium_points + 100 WHERE id IN ( SELECET DISTINCT account_id FROM players WHERE online=1 )
UPDATE `accounts` SET `premium_points` = `premium_points` + 100 WHERE id IN ( SELECT DISTINCT `account_id` FROM `players` WHERE `online` = 1 )
SQL:SELECET