Weblove
سه شنبه 26 مرداد 1395, 06:43 صبح
دوستان به نظرتون این کوئری بهینه است ؟
SELECT FLOOR(2383258+RAND() * 12393077) AS random_num FROM urls WHERE "random_num" NOT IN (SELECT wordid FROM urls) LIMIT 1
SELECT FLOOR(2383258+RAND() * 12393077) AS random_num FROM urls WHERE "random_num" NOT IN (SELECT wordid FROM urls) LIMIT 1