如果时间超过插槽大小，时隙不起作用

Question

我有两张桌子。一个具有插槽信息，另一个保存所选的插槽。

  

规则

  

预订表

现在我正在使用的代码是

 declare  @RuleId int,@starttime varchar(50),@endtime varchar(50),@r int,@interval int
 SELECT
 @RuleId=Rules.Rule_Serno,
   @starttime = Rules.from_dt
 , @endtime   = Rules.to_dt
 ,@r=Rules.room,
  @interval  = Service.Service_Duration
  FROM         Service INNER JOIN
                       Rules ON Service.Service_Serno = Rules.Service_Id where Service.Service_Serno=@ServiceId
 --SELECT * INTO #tmp FROM d;

  declare @slots int

  select @slots = datediff(minute, @starttime, @endtime)/@interval

  SELECT TOP (@slots) N=IDENTITY(INT, 1, 1)
  INTO #Numbers
  FROM master.dbo.syscolumns a CROSS JOIN master.dbo.syscolumns  b;

  select 
      dateadd(minute,((n-1)*@interval),@starttime) as start,
      dateadd(minute,(n*@interval),@starttime) as todate
  into
      #slots
  from
      #numbers

 SELECT  @room as RoomId,@Dt as 'Date',LEFT(CONVERT(VARCHAR,s.start, 108), 10)  as Start,LEFT(CONVERT(VARCHAR,s.todate, 108), 10) as 'End', case when b.start IS null then '-' else 'xx' end as Status
 FROM         [#slots] AS s left JOIN
                       booking AS b ON s.start = b.start AND s.todate = b.todate and b.Dt=@Dt  and b.Service_Id=@ServiceId and b.Room_Id=@room


  drop table #numbers,  #slots

问题是代码仅在插槽正好是表中描述的分钟时才有效。例如，如果插槽是60分钟，例如：如果我预订，如果我手动预订7:00到7:30它仍然显示7：00-8：00的空位。如果在保留插槽旁边手动完成，我需要在插槽之间显示任何内容。