我目前正在尝试实现一些代码，这些代码将获取给定的160ish行列表的日期，并将它们更新为同一表中另一个日期之后的一分钟。
因此，例如，这些将来自：
> 1058841 2018-06-20 14:15:04.000 Copy of NtO produced
> 1058841 2018-06-14 19:58:03.000 NTO service date set to 24/05/2018
> 969565 2018-06-20 14:15:01.000 17530 Copy of NtO produced
> 969565 2018-06-14 19:58:03.000 148 NTO service date set to 24/05/2018
对此：
> 1058841 2018-06-14 19:59:03.000 Copy of NtO produced
> 1058841 2018-06-14 19:58:03.000 NTO service date set to 24/05/2018
> 969565 2018-06-14 19:59:03.000 17530 Copy of NtO produced
> 969565 2018-06-14 19:58:03.000 148 NTO service date set to 24/05/2018
我到目前为止的代码：
declare @thisdate datetime
set @thisdate = (
select * from (
select row_number() over (partition by te_system_ref order by (select 0)) as rownumber, te_date, te_system_ref, te_event from ticket_events where te_system_ref in
(select sl_system_ref from statutory_letter where sl_letter_batch = 9429)and te_event = 'Copy of NtO produced'
) t
where rownumber = 1
);
with rn as
( select * from (
select row_number() over (partition by te_system_ref order by (select 0)) as rownumber1, te_date, te_system_ref, te_event from ticket_events where te_system_ref in
(
select sl_system_ref from statutory_letter where sl_letter_batch = 9429
)
and te_event = 'Copy of NtO produced'
) t where rownumber1 = 1)
select * from rn where te_date between dateadd(hour,1,@thisdate) and dateadd(hour,-1,@thisdate)
这当前给我错误：
消息116，级别16，状态1，行9 未在子查询中引入子查询时在选择列表中指定 存在。
如果有人可以解释我哪里出了问题，或者指出正确的方向，将不胜感激
答案 0 :(得分：0)
ke_search这里您尝试为标量变量分配多个值。
我想您实际上是想要set @thisdate = (
select * from (
select row_number() over (partition by te_system_ref order by (select 0)) as rownumber, te_date, te_system_ref, te_event from ticket_events where te_system_ref in
(select sl_system_ref from statutory_letter where sl_letter_batch = 9429)and te_event = 'Copy of NtO produced'
) t
where rownumber = 1
);
。
te_date