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我无法找到特定治疗的半小时和一小时时间段的可用时间 - 在选定的日期。用户可以在预订结束时选择半小时和一小时 示例 = 在选定的日期 - 上午 9 点预订 1 小时(上午 9 点至上午 10 点),还有另一个预订 - 上午 11 点半-小时(上午 11 点到上午 11:30)然后用户不应该在同一选定的日期看到这两个插槽他应该在显示器上看到这个(在选择治疗者和日期之后)

半小时:

  • 上午 9 点至上午 930 点❌(不提供)
  • 930am 到 10am ❌(不提供)
  • 上午 10 点至 1030 ✅(可用)
  • 1030 到 11am ✅(有空)
  • 上午 11 点至 11:30 ❌(不提供)
  • 11:30 到 1200pm ✅(有空)等等............

    一小时

  • 上午 9 点到 10 点❌(不提供)

  • 上午 10 点至上午 11 点✅(可用)
  • 上午 11 点到下午 12 点❌(不可用),(((((如果可能的话,我们可以将上午 1130 点到下午 12:30 ✅(可用),然后序列从 12:30 继续......)))
  • 中午 12 点至下午 1 点 ✅(可用)
  • 下午 1 点到 2 点 ✅(可用)等等----------------------------

    我试着这样做。

我创建了两张表 - 一张用于半小时时段,一张用于一小时时段。

这两个表有 timebegin 和 timeEnd

半小时老虎机桌 一小时时段表

我有另一张桌子,上面有预订的条目。 在此处输入图像描述

我尝试在 SQl 中使用 EXCEPT - 但这似乎给出了错误的结果

	SELECT T1.timeBegin from ClinicNew.HalfTiming T1 
		left join  ClinicNew.FullTiming T2
		On T1.TimeBegin=T2.TimeBegin
		EXCEPT
		select distinct T1.timeBegin from ClinicNew.HalfTiming T1 
		inner join ClinicNew.NewTreaterEngagedDTM T2
		On T1.timeBegin = T2.timeBegin
		where T2.BookedDate = '2014-04-15'
		and T2.TreaterID=

请帮忙

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1 回答 1

2

我认为您可能通过为不同长度的时隙设置多个表来使这一点过于复杂。当您想以 15 分钟而不是 30 分钟为间隔时会发生什么?当您想要允许 90 分钟的约会时会发生什么?如果安排这些约会的办公室在不同的日子有不同的时间会怎样?

我在下面提出的解决方案使用一张表来存储约会,就是这样。当您需要给定日期的可用约会列表时,显示的其余逻辑可以轻松进入存储过程或调用的东西。希望评论足以解释发生了什么。

-- Sample data from the question.
declare @Appointment table
(
    [ID] bigint not null identity(1, 1), -- Primary key.
    [BookedDate] date not null,          -- The date of the appointment.
    [Time] time(0) not null,             -- The start time of the appointment.
    [Duration] int not null              -- The length of the appointment in minutes.
);
insert @Appointment
    ([BookedDate], [Time], [Duration])
values
    ('2014-04-15', '09:00', 60),
    ('2014-04-15', '10:00', 30),
    ('2014-04-15', '17:00', 60),
    ('2014-04-15', '18:30', 30);

-- @StartTime is the time the office opens on the desired date.
-- @EndTime is the time the office closes on the desired date.
-- @Interval is the number of minutes that separate potential appointment times.
-- @DesiredDate is the date on which an appointment is requested.
-- @DesiredLength is the length of the requested appointment in minutes.
declare @StartTime time(0) = '09:00';
declare @EndTime time(0) = '21:00';
declare @Interval int = 30;
declare @DesiredDate date = '2014-04-15';
declare @DesiredLength int = 30;

-- This CTE enumerates all potential timeslots on the @DesiredDate given the above data.
with [TimeSlotCTE] as
(
    -- Base case: the first appointment slot of the day.
    select 
        [From] = @StartTime, 
        [To] = dateadd(minute, @DesiredLength, @StartTime)

    union all

    -- Recursive case: create a subsequent appointment slot as long as doing so won't
    -- take us past the office's closing time.
    select
        dateadd(minute, @Interval, [From]),
        dateadd(minute, @Interval, [To])
    from
        [TimeSlotCTE]
    where
        dateadd(minute, @Interval, [To]) <= @EndTime
)

-- Finally, we simply select every time slot defined above for which there does not
-- yet exist an overlapping appointment on the requested date.
select
    [T].[From],
    [T].[To],
    [Available] = 
        case when exists 
        (
            select 1 from @Appointment [A]
            where
                -- Forgot this line the first time around!
                [A].[BookedDate] = @DesiredDate and
                [A].[Time] < [T].[To] and
                dateadd(minute, [A].[Duration], [A].[Time]) > [T].[From]
        )
        then 'No' else 'Yes' end
from
    [TimeSlotCTE] [T];

如果我使用以下代码运行上述代码,则输出@DesiredLength = 30如下:

From        To          Available
09:00:00    09:30:00    No
09:30:00    10:00:00    No
10:00:00    10:30:00    No
10:30:00    11:00:00    Yes
11:00:00    11:30:00    Yes
11:30:00    12:00:00    Yes
12:00:00    12:30:00    Yes
12:30:00    13:00:00    Yes
13:00:00    13:30:00    Yes
13:30:00    14:00:00    Yes
14:00:00    14:30:00    Yes
14:30:00    15:00:00    Yes
15:00:00    15:30:00    Yes
15:30:00    16:00:00    Yes
16:00:00    16:30:00    Yes
16:30:00    17:00:00    Yes
17:00:00    17:30:00    No
17:30:00    18:00:00    No
18:00:00    18:30:00    Yes
18:30:00    19:00:00    No
19:00:00    19:30:00    Yes
19:30:00    20:00:00    Yes
20:00:00    20:30:00    Yes
20:30:00    21:00:00    Yes

这是与@DesiredLength = 60

From        To          Available
09:00:00    10:00:00    No
09:30:00    10:30:00    No
10:00:00    11:00:00    No
10:30:00    11:30:00    Yes
11:00:00    12:00:00    Yes
11:30:00    12:30:00    Yes
12:00:00    13:00:00    Yes
12:30:00    13:30:00    Yes
13:00:00    14:00:00    Yes
13:30:00    14:30:00    Yes
14:00:00    15:00:00    Yes
14:30:00    15:30:00    Yes
15:00:00    16:00:00    Yes
15:30:00    16:30:00    Yes
16:00:00    17:00:00    Yes
16:30:00    17:30:00    No
17:00:00    18:00:00    No
17:30:00    18:30:00    No
18:00:00    19:00:00    No
18:30:00    19:30:00    No
19:00:00    20:00:00    Yes
19:30:00    20:30:00    Yes
20:00:00    21:00:00    Yes

像这样的东西对你有用吗?

于 2015-08-05T19:22:29.013 回答