MySQL使用LIMIT选择结果的SUM

Question

我有一张桌子,里面装满了物品和价格.我想抓住3个价格最高的商品的总和.

我想也许,SELECT SUM(items.price) FROM items ORDER BY items.price LIMIT 3但似乎没有做到这一点.这可能吗？谢谢!

Answer 1

select sum(price) from (select items.price from items order by items.price desc limit 3) as subt;

Answer 2

LIMIT影响查询返回的行数,SUM只返回一行.基于此主题,您可能想尝试:

SELECT sum(price) 
FROM (SELECT price
      FROM items
      ORDER BY price DESC
      LIMIT 3
) AS subquery;