MySQL Top Proct
SELECT price FROM prices p1 WHERE
(SELECT count(*) FROM prices p2 WHERE p2.price >= p1.price) <=
(SELECT 0.1 * count(*) FROM prices)
);
Tender Toucan
SELECT price FROM prices p1 WHERE
(SELECT count(*) FROM prices p2 WHERE p2.price >= p1.price) <=
(SELECT 0.1 * count(*) FROM prices)
);
SELECT * FROM prices WHERE price >= (SELECT price FROM prices p1 WHERE
(SELECT count(*) FROM prices p2 WHERE p2.price >= p1.price) <=
(SELECT 0.1 * count(*) FROM prices)
);