Question

这现在正在起作用-我想问一下，我将如何获得一列请问我们该服务的最后日期是几天前？

select full_name, event_name, actual_date,
row_number() over(partition by ev.full_name order by ev.actual_date DESC) as row_num --<<--<<--
from event_expanded_view ev
where
ev.full_name is not Null and ev.category_code in('OTHER_ACT', 'CONTACTS', 'PEOPLEPLANS', 'PEOPLETESTS', 'PERSONREQ')

)
select full_name, event_name, actual_date from cte_ul_ev where row_num = 1

Answer 1

像这样尝试...

;WITH
    cte_ul_ev AS (
        SELECT DISTINCT
            ev.full_name,
            ev.event_name,
            ev.actual_date,
            row_num = ROW_NUMBER() OVER (PARTITION BY ev.full_name ORDER BY ev.actual_date DESC)    --<<--<<--
        FROM
            dbo.event_expanded_view ev
        WHERE
            ev.full_name IS NOT NULL 
            AND ev.category_code IN ('OTHER_ACT', 'CONTACTS', 'PEOPLEPLANS', 'PEOPLETESTS', 'PERSONREQ')
        )
SELECT
    ue.full_name,
    ue.event_name,
    ue.actual_date
FROM
    cte_ul_ev ue
WHERE
    ue.row_num = 1;

希望显示最新的日期时间列

1 个答案: