Question

这就是我的价格表

Product_id prod_upc    str_nbr  Price
prod110010 4122067755  12       1.22
prod110010 4122067755  21       2.88
prod110010 4122063030  21       3.88
prod110010 4122063030  12       2.88
prod110010 4122063031  12       2.88
prod110010 4122063031  21       4.88

我有两个需要解决的问题

为所有商店的所有产品获得价格最低的UPC？基于以上数据，输出应为
```
prod110010  4122067755  12      1.22
```
获得每家商店所有产品的最低价格？基于以上数据，输出应为
```
prod110010  4122067755  12      1.22
prod110010  4122067755  21      2.88
```

我试过可能内部查询但没有任何效果，这里的任何SQL专家都请帮助。

我对特定商店的查询是：

SELECT DISTINCT t.product_id, t.prod_upc,t.str_nbr, t.MINVALUE 
  FROM ( SELECT dpc.product_id, hpd.prod_upc, str_nbr
              , MIN(hpd.curr_retl_prc) OVER 
                 (PARTITION BY dpc.product_id) MINVALUE 
           FROM prc_dta ) AS T

和全球：

SELECT DISTINCT t.product_id, t.prod_upc, t.str_nbr, t.MINVALUE 
  FROM ( SELECT dpc.product_id, hpd.prod_upc, hpd.str_nbr
              , MIN(hpd.curr_retl_prc) OVER 
                    (PARTITION BY dpc.product_id,hpd.str_nbr) MINVALUE 
           FROM prc_dta) AS T

Answer 1

This query to get min price upc row : 

    select top 1 Product_id,prod_upc,str_nbr,Price from tbl where prod_upc=(select top 1 min(prod_upc) from tb1 ) order by Price asc

This query get all row of min price of upc:

select Product_id,prod_upc,str_nbr,Price from tbl where prod_upc=(select top 1 min(prod_upc) from tb1 ) order by Price asc

商店明智的产品和价格表中的全球产品的最低价格

1 个答案: