Question

我必须按价格订购20种最新产品。我正在使用此查询。

SELECT * FROM products ORDER BY created_at DESC, price ASC LIMIT 20

Answer 1

你可以尝试自我加入

SELECT p1.* FROM products AS p1 
INNER JOIN
     (SELECT id
     FROM products
     ORDER BY created_at DESC LIMIT 20) AS p2
ON p1.id = p2.id
ORDER BY p1.price ASC

我不确定是否要加入laravel query-builder中的临时表。至少你可以这样做：

$results = DB::select(DB::raw("
    SELECT p1.* FROM products AS p1 
    INNER JOIN
            (SELECT id
            FROM products
            ORDER BY created_at DESC LIMIT 20) AS p2
        ON p1.id = p2.id
    ORDER BY p1.price ASC
"));

MySQL按价格获得最新的20个产品订单

1 个答案: