如何從結果集中提取特定行的排名

Question

with baseQuery as(
        select id, 
        (select sum(calories) from dailytable where user_id in (select user_id from group_members where group_id=132 and status = 'accepted' and user_id=users.id)) as total_calories 
        from users where id in (select user_id from group_members where group_id=132 and status='accepted')) 
        select *,dense_rank() over(order by total_calories desc nulls last) as rank 
from baseQuery; 

這是我的查詢和輸出如下。

id total_calorie   rank 
    121 2516.054250000001  1 
    25 897.0234000000002  2 
    120 784.13784    3 

我想獲得用戶ID 120只排名，但是當我把這裏的條件對上面的查詢它返回等級爲1，而不是3

我怎樣才能解決這個問題？

Answer 1

你可以第一後添加另一個CTE：

with 
baseQuery as 
(
    select id, (select sum(calories) from dailytable where user_id in (select user_id from group_members where group_id=132 and status = 'accepted' and user_id=users.id)) as total_calories 
    from users where id in (select user_id from group_members where group_id=132 and status='accepted') 
), 
ranked_query as 
(
    select *,dense_rank() over(order by total_calories desc nulls last) as rank 
    from baseQuery 
) 
select * from ranked_query where id = 120;