存储过程中的T-SQL重叠时间范围参数

我想搜索发生在一天中特定时间和日期/时间范围之间的记录

例如：

我的桌子：

ID | EmpID |  AuthorizationTime
-------------------------------
1  | 21455 | '23/01/2012 12:44'
2  | 22311 | '23/01/2012 18:15'
3  | 21455 | '23/01/2012 23:04'
4  | 10222 | '24/01/2012 03:31'
5  | 21456 | '24/01/2012 09:00'
6  | 53271 | '25/01/2012 12:15'
7  | 10222 | '26/01/2012 18:30'
8  | 76221 | '27/01/2012 09:00'

SP输入参数示例：

@from:  22/01/2012 08:00
@to:    24/01/2012 23:00
@fromtime:  18:30
@totime:    08:00

预期产出：

EntryID EmployeeID  AuthorisationTime
3       21455       '23/01/2012 23:04'
4       10222       '24/01/2012 03:31'

我在SP中尝试了以下select语句：

...
Select @wAuthorizationTime=' AuthorizationTime between ''' + CONVERT(nvarchar(30), @from )+ ''' and ''' + convert(nvarchar(50),@to )+ ''' '

Select @Where = @wAuthorizationTime; Declare @wHours nvarchar(1000)='';
    if (ISNULL(@fromtime,'')<>'' and ISNULL(@ToTime,'')<> '') begin Select @wHours= ' (Cast(AuthorizationTime as time) between ''' + @fromTime + ''' and '''+ @ToTime +''')' 
    end if (@wHours <> '') Select @Where=@Where + ' and ' + @wHours

...

这句话的问题是，如果结束时间低于开始时间，例如23:00到03:00，我就得不到任何结果

如果我使用一个不重叠的时间范围，例如18:00到23:59，它确实有效

要获得以上结果，我需要做什么？

添加一个检查，查看@fromtime>@totime是否正确。如果是这种情况，请按如下方式比较AuthorizationTime的时间强制值：

(cast(AuthorizationTime as time) between '00:00:00' and @totime) or
(cast(AuthorizationTime as time) between @fromtime and '23:59:59.999')

---

这将为您提供您想要的：

select *
from Times
where AuthorizationTime >= @from
and AuthorizationTime <= @to
and (
        (@fromtime > @totime and ((cast(AuthorizationTime as time) between '00:00:00' and @totime) or 
                                  (cast(AuthorizationTime as time) between @fromtime and '23:59:59.999')
                                 )
        ) or
       (@fromtime <= @totime and cast(AuthorizationTime as time) between @fromtime and @totime)
    )

---

-在SELECT语句之前执行复杂的操作

declare @from DateTime,
@to DateTime, 
@fromTime int,
@totime int

-- sample data:
    set @from = convert(datetime, '22/01/2012 08:00', 103)
    set @to = convert(varchar, '24/01/2012 23:00', 103)

-- first truncte the date
   set @from = convert(datetime, convert(varchar, @from, 103), 103)
   set @to = convert(datetime, convert(varchar, @to, 103), 103)

-- then build the time as an int: Hour * 100 + Minute
    set @fromTime = 1830 
    set @toTime = 800 -- note this is an int


-- Then use this to do the where clause:
    select *
    from myTable
    where AuthorisationTime between @from and @to
    and (DATEPART(HOUR, AuthorizationTime) * 100 + DATEPART(MINUTE, AuthorizationTime) 
         >= @fromTime OR 
          DATEPART(HOUR, AuthorizationTime) * 100 + DATEPART(MINUTE, AuthorizationTime) 
        <= @toTime)

---

我认为这很容易理解、测试，而且更有可能使用索引。

这不起作用。问题的关键在于@fromTime有时比@toTime大。另外，我在测试数据上尝试了它，但它没有返回任何行。@Jerrad，你是对的，我有fromTime和toTime倒转。我在回答中改变了它。我也不确定缩短日期是否是你想要的。这不是我的问题，我只是另一个正在寻找答案的人。不过，它仍然没有返回任何行@是的。请看下面我的答案。@Jerrad我还有日期追溯到，从。这是固定的现在，我得到2行与您的样本数据。谢谢你指出这一点。