返回 2 个时间戳之间的记录答案

【问题标题】：Returning records between 2 timestamps返回 2 个时间戳之间的记录
【发布时间】：2022-11-12 12:51:09
【问题描述】：

我想过滤我的结果以仅返回 2 个时间变量之间的记录。在此示例中，我只想要 time_stamp_local 介于 13:00:00 和 14:00:00 之间的结果。我的 WHERE 语句有问题。请协助。

declare @dateFrom date = '2022-09-01'
declare @dateTo date   = '2022-09-30'
declare @TimeFrom time(0) = '13:00:00'
declare @TimeTo time(0) = '14:00:00'
 
select T.external_id as Stop_ID,PC2.time_stamp_local,isnull(sum([in]),0) as Boarding_Passengers,isnull(sum([out]),0) as Alighting_Passengers,
T.LineName as Line, CAST(PC2.time_stamp_local as time(0)) as Time, CAST(Convert(varchar,@TimeFrom) as time(0)) as FROM_
from
(
select sp.external_id,sp.descr,sp.stop_point_id,L.line_id,L.descr as LineName
from apt..apt_calendar C
       INNER join apt..apt_journey_in_block JIB on C.network_ver_id = JIB.network_ver_id and C.period_id = JIB.period_id
       INNER join apt..apt_journey J on JIB.network_ver_id = J.network_ver_id and jib.journey_id = J.journey_id
       INNER join apt..apt_line L on C.network_ver_id = L.network_ver_id and J.line_id = L.line_id
       INNER join apt..apt_point_in_journey_pattern PIJP ON J.network_ver_id = PIJP.network_ver_id and J.journey_pattern_id = PIJP.journey_pattern_id
       INNER join apt..apt_stop_point SP on C.network_ver_id = SP.network_ver_id and PIJP.stop_point_id = SP.stop_point_id
where cast(c.calendar_day as date) between @dateFrom and @dateTo and j.company_id like '11%'
group by sp.external_id,sp.descr,sp.stop_point_id,L.line_id,L.descr
) T
LEFT JOIN [I4M].[VS].[vs_passenger_count2] PC2 ON cast(PC2.calendar_day as date) between @dateFrom and @dateTo and PC2.stop_point_id = T.stop_point_id and PC2.line_id = T.line_id
left join  i4m.vs.vs_passenger_count2_door PC2D on PC2.id = PC2D.passengar_count_id and PC2.error_flags = 0
WHERE PC2D.[in] != 0 or PC2D.[out] != 0 and CAST(PC2.time_stamp_local as time(0)) > cast(Convert(varchar,@TimeFrom) AS TIME(0)) 
    and CAST(PC2.time_stamp_local as time(0)) < cast(Convert(varchar,@TimeTo) AS TIME(0))
group by T.external_id,PC2.time_stamp_local,T.LineName,T.line_id--,CAST(PC2.time_stamp_local as time(0))
order by T.LineName

【问题讨论】：

标签： sql filter time

【解决方案1】：

看起来您希望将列转换为 Time，因为转换为 Time(0) 会舍入毫秒，而转换为 Time 会截断毫秒。考虑：

select getdate(), datediff(MILLISECOND, CAST(getdate() as time),  CAST(getdate() as time(0))) delta

(No column name)        delta
2022-11-11 18:54:15.590 410

显示投射到time(0) 的值为18:54:16。试试.. CAST(PC2.time_stamp_local as Time) < @TimeTo..。请注意，您不需要强制转换 @TimeTo 参数。

【讨论】：