Question

我正在转动我的查询，现在我有以下查询：

select
ad_st_id_state,
round(IF(id_brand = 72, avg(if(id_brand = 72, vp_retail, null)), null),2) AS 'PRODUCT 1',
round(IF(id_brand = 75, avg(if(id_brand = 75, vp_retail, null)), null),2) AS 'PRODUCT 2'

from sf_product
join sf_brand on fa_ba_id_brand = id_brand

where vi_pr_id_proyect = 5

GROUP BY
id_brand, ad_st_id_state

我得到的结果计算得很好，我得到了我的结果集：

ad_st_id_state | PRODUCT 1 | PRODUCT 2
7   24.05   null
19  23.91   null
23  23.38   null
7   null    27.37
19  null    24.68
23  null    24.46
7   null    null
19  null    null
23  null    null
7   null    null
19  null    null
23  null    null

但我希望结果集为：

ad_st_id_state | PRODUCT 1 | PRODUCT 2
7   24.05   27.37
19  23.91   24.68
23  23.38   24.46

我一直试图通过不同的组合修改组来获得这个，但我不能这样做。有些人可以帮助我，告诉我为什么你的答案有效，所以我能理解我做错了什么？

感谢

Answer 1

我会写这样的查询：

select ad_st_id_state,
       avg(case when id_brand = 72 then vp_retail end) as Brand_72,
       avg(case when id_brand = 75 then vp_retail end) as Brand_75
from sf_product join
     sf_brand
     on fa_ba_id_brand = id_brand
where vi_pr_id_proyect = 5
group by ad_st_id_state;

MySQL - 无法在数据透视表中正确分组

1 个答案: