如何显示前 3 名产品及其价格并按平均价格排列？

Question

我在产品 table 中有此记录 product_id 及其价格

product_id	price
1	150
1	190
2	20
2	12
3	123
4	513
5	157
5	147

我想获得前 3 名的产品并按平均价格排列，如下所示

product_id	price	avg_price
4	513	513
1	150	170
1	190	170
5	157	152
5	147	152

如何在sql查询或laraveleloquent查询中write/code它？

Answer 1

WITH AverageCTE AS
(
    SELECT product_id, AVG(avg_price) as avg_price 
    FROM products
    GROUP BY product_id
)

SELECT p.product_id, price, avg_price
FROM product p JOIN 
(SELECT * FROM AverageCTE ORDER BY avg_price DESC LIMIT 3) a 
    on p.product_id = a.product_id
ORDER BY avg_price DESC

如何显示前 3 名产品及其价格并按平均价格排列？

How can I display top 3 products with its price and arrange by average prices?

mysql

sql

laravel

eloquent

laravel-8