带上最后日期（结果）

Question

我正在尝试使用以下查询提供最近的日期：

select id, amount, yearmonthday
from ( 
select 
id,
amount,
yearmonthday,
row_number() OVER (PARTITION BY id ORDER BY try(date_parse(yearmonthday, '%Y-%m-%d'))) as row_num 
from "db_raw"."table" ) ranked
where row_num = 1 and id = 1

但是每次我运行查询时，都会给我带来不同的结果，而不是最后一个日期

Answer 1

首先，您需要按降序排序以获得最近的日期：

row_number() OVER (PARTITION BY id 
     ORDER BY try(date_parse(yearmonthday, '%Y-%m-%d')) desc) as row_num

默认排序顺序为升序。