comments | difficulty | edit_url | tags | |
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true |
简单 |
|
产品表:Product
+--------------+---------+ | Column Name | Type | +--------------+---------+ | product_id | int | | product_name | varchar | | unit_price | int | +--------------+---------+ product_id 是这个表的主键(具有唯一值的列)。 该表的每一行显示每个产品的名称和价格。
销售表:Sales
+-------------+---------+ | Column Name | Type | +-------------+---------+ | seller_id | int | | product_id | int | | buyer_id | int | | sale_date | date | | quantity | int | | price | int | +------ ------+---------+ 这个表它可以有重复的行。 product_id 是 Product 表的外键(reference 列)。 该表的每一行包含关于一个销售的一些信息。
编写解决方案,找出总销售额最高的销售者,如果有并列的,就都展示出来。
以 任意顺序 返回结果表。
返回结果格式如下所示。
示例 1:
输入:
Product 表:
+------------+--------------+------------+
| product_id | product_name | unit_price |
+------------+--------------+------------+
| 1 | S8 | 1000 |
| 2 | G4 | 800 |
| 3 | iPhone | 1400 |
+------------+--------------+------------+
Sales
表:
+-----------+------------+----------+------------+----------+-------+
| seller_id | product_id | buyer_id | sale_date | quantity | price |
+-----------+------------+----------+------------+----------+-------+
| 1 | 1 | 1 | 2019-01-21 | 2 | 2000 |
| 1 | 2 | 2 | 2019-02-17 | 1 | 800 |
| 2 | 2 | 3 | 2019-06-02 | 1 | 800 |
| 3 | 3 | 4 | 2019-05-13 | 2 | 2800 |
+-----------+------------+----------+------------+----------+-------+
输出:
+-------------+
| seller_id |
+-------------+
| 1 |
| 3 |
+-------------+
解释:Id 为 1 和 3 的销售者,销售总金额都为最高的 2800。
# Write your MySQL query statement below
SELECT seller_id
FROM Sales
GROUP BY seller_id
HAVING
SUM(price) >= ALL(
SELECT SUM(price)
FROM Sales
GROUP BY seller_id
);
# Write your MySQL query statement below
WITH
T AS (
SELECT
seller_id,
SUM(price) AS tot,
RANK() OVER (ORDER BY SUM(price) DESC) AS rk
FROM Sales
GROUP BY seller_id
)
SELECT seller_id
FROM T
WHERE rk = 1;