如何搜索与SQL两行之间寻找日期时间？

Posted 2023-02-16

我想按日期和时间范围来搜索数据库中的行。每一行都会有timewritten但如果我挑的范围将包括在两行之间的范围将包括在结果中。第一个前不拉的上一行。任何人有什么建议？

值表：

tempTable
-------------------------------
rowId   timewritten
1       2019-02-05 22:14:30.200
2       2019-02-05 22:16:39.513
3       2019-02-05 22:37:27.437
4       2019-02-05 22:58:21.343
5       2019-02-05 23:00:50.400
-------------------------------

select * 
    from temptable
    where TimeWritten >= '2019-02-05 22:20:00' 
        and timewritten <= '2019-02-05 22:57:00'

tempTable
-------------------------------
rowId   timewritten
1       2019-02-05 22:16:39.513
2       2019-02-05 22:37:27.437
3       2019-02-05 22:58:21.343
-------------------------------

答案

之前和之后（如果有的话），你可以使用窗口函数获取一行：

select t.*
from (select t.*,
             lag(timewritten, 1, timewritten) over (order by timewritten) as prev_TimeWritten,
             lead(timewritten, 1, timewritten) over (order by timewritten) as next_TimeWritten
      from temptable t
     ) t
where next_TimeWritten >= '2019-02-05 22:20:00' and
      prev_timewritten <= '2019-02-05 22:57:00';