Question

我有一个包含订购商品的表格，偶尔我有一个订单ID，包含多行（每个订购商品一行）。

OrderID | Order.Item_id | Item.Price | Quantity | OrderTotal | Seller ID |
1       | 1             | 10         | 1        | 10         |1          |
2       | 2             | 15         | 1        | 25         |1          |
2       | 3             | 10         | 1        | 25         |2          |
3       | 4             | 15         | 1        | 44         |1          |
3       | 5             | 10         | 1        | 44         |1          |
3       | 6             | 19         | 1        | 44         |2          |

我需要一种方法来导出/显示给定卖家ID的OrderTotal。

理想情况下，我需要以下行的结果：

OrderID | Order.Item_id | Item.Price | Quantity | OrderTotal | Seller ID |
1       | 1             | 10         | 1        | 10         |1          |
2       | 2             | 15         | 1        | 15         |1          |
3       | 4             | 15         | 1        | 25         |1          |
3       | 5             | 10         | 1        | 25         |1          |

对于OrderID 2，我可以轻松选择项目价格，但这对于OrderID 3不起作用，我需要将两个项目相加。这只能使用SQL吗？你能帮我吗？

非常感谢提前！

Answer 1

尝试如下

Select SellerID,
       OrderID,
       -- below will display the items id comma seperated
       group_concat(Itme_id) as itemlist,
       -- below will display the item price comma seperated, you can use sum(Price) also
       group_concat(Price) as pricelist,
       sum(quantity) as totalquantity,
       sum(OrderTotal) as totalorders
From Table
where SellerID = 1
group by SellerID,OrderID

Answer 2

您可以按订单和卖家获取订单总和，然后加入订单信息获取其他值：

select o.order_id, o.item_id, o.price, o.quantity, q.total, o.seller_id from (
  select order_id, seller_id, sum(price) total
  from   orders
  where seller_id = 1
  group by order_id, seller_id
) q
join orders o on (o.order_id = q.order_id and q.seller_id = o.seller_id);

Fiddle

如何为特定订单汇总多个产品价格

2 个答案: