Question

所以我有几个类似于此的结构表：

Run ([RunID], [PlayerID], [Score])
Jump ([ID], [RunID], [Time], [Type])

时间2“向上”和2“向下”有4种“类型”。

我需要在给定的运行中获得“up”和“down”之间的时间。

基本上，在进行“跳跃”的“跑步”期间，我记录一个上升时间，并且在相应的着陆上记录下来（每次运行只有一对）。在“跑步”结束时，我需要显示“在空中”的总时间，以及每次跳跃的时间。我认为最好的方法是转储到具有以下结构的临时表中：

@tempJump ([RunID], [TimeUp], [TimeDown])

然后我将拥有所有需要的信息来计算和填充必要的字段。

到目前为止，我已经尝试了从简单的选择/连接到可怕的游标的所有内容，但是我无法将“ups”与相应的“下降”匹配，并将它们放入临时表中并使用正确的“运行”。< / p>

关于实现这一目标的最佳方法的任何想法？

修改

示例架构：

    CREATE TABLE Run
    ([RunID] int, [PlayerID] int, [Score] int)
;

INSERT INTO Run
    ([RunID], [PlayerID], [Score])
VALUES
    (1, 1, 1000),
    (2, 1, 1100),
    (3, 1, 800),
    (4, 2, 1500),
    (5, 1, 900)
;

CREATE TABLE Jump
    ([JumpID] int, [RunID] int, [Time] datetime, [Type] int)
;

INSERT INTO Jump
    ([JumpID], [RunID], [Time], [Type])
VALUES
    (1, 1, '2013-08-13 18:00:04', 1),
    (2, 1, '2013-08-13 18:00:10', 2),
    (3, 2, '2013-08-13 18:02:15', 1),
    (4, 2, '2013-08-13 18:02:45', 4),
    (5, 3, '2013-08-13 18:04:20', 3),
    (6, 3, '2013-08-13 18:05:01', 2),
    (7, 4, '2013-08-13 18:10:12', 3),
    (8, 4, '2013-08-13 18:11:25', 4),
    (9, 5, '2013-08-13 18:15:00', 1),
    (10, 5, '2013-08-13 18:25:20', 4)
;

CREATE TABLE JumpType
    ([TypeID] int, [Description] varchar(12))
;

INSERT INTO JumpType
    ([TypeID], [Description])
VALUES
    (1, 'UpPlatform'),
    (2, 'DownPlatform'),
    (3, 'UpBoost'),
    (4, 'DownBoost')
;

查询的预期输出将是类似于：

的临时表

RunID        PlayerID          TimeUp                     TimeDown
 1              1          '2013-08-13 18:00:04'       2013-08-13 18:00:10

Answer 1

修改

根据您更新的问题，这将有效。我加入了你的跳转类型表而不是假设id（我个人认为假设id是一个坏主意，例如假设1和3是< em> up type）

此外，我还使用内部加入来获得相应的下跳 - 我假设如果跳线上升他将会下降;） < / p>
select r.RunID, r.PlayerID, TimeUp = uj.[Time], TimeDown = dj.[Time], TimeDifference = DATEDIFF(MILLISECOND, uj.Time, dj.Time) from @Run r inner join @Jump uj on uj.RunID = r.RunID inner join @JumpType ut on ut.TypeID = uj.[Type] inner join @Jump dj on dj.RunID = uj.RunID inner join @JumpType dt on dt.TypeID = dj.[Type] where ut.[Description] like '%Up%' and dt.[Description] like '%Down%'

ORIGINAL - 在向我们展示您的架构之前

继承人我的想法

类型表用IsUpElseAssumeIsDown字段
表示其上升或下降时间
declare @TimeType table (Id int, Name nvarchar(20), IsUpElseAssumeIsDown bit) insert into @TimeType (Id, Name, IsUpElseAssumeIsDown) values (1, '1st Up Type', 1), (2, '1st Down Type', 0), (3, '2st Up Type', 1), (4, '2st Down Type', 0)

现在设置跳转到
进行测试
declare @Jump table ([ID] int, [RunID] int, [Time] time, [Type] int) insert into @Jump ([ID], [RunID], [Time], [Type]) values (1, 1, '10:00:05.000', 1), (2, 1, '10:00:15.000', 2), (3, 2, '10:00:15.000', 3), (4, 2, '10:00:25.100', 4), (5, 3, '10:00:25.000', 1), (6, 3, '10:00:35.200', 4), (7, 4, '10:00:35.000', 3), (8, 4, '10:00:45.300', 4), (9, 5, '10:00:45.000', 1), -- no down time for 1st up type (10, 6, '10:00:55.000', 3) -- no down time for 2nd up type

最后一个查询来获取我们的结果

-- @tempJump ([RunID], [TimeUp], [TimeDown]) ;with UpJump as ( select j.RunID, j.[Time] from @Jump j inner join @TimeType t on t.Id = j.[Type] where t.IsUpElseAssumeIsDown = 1 ) ,DownJump as ( select j.RunID, j.[Time] from @Jump j inner join @TimeType t on t.Id = j.[Type] where t.IsUpElseAssumeIsDown = 0 ) select u.RunID, TimeUp = u.[Time], TimeDown = d.[Time], TimeDifference = DATEDIFF(MILLISECOND, u.Time, d.Time) from UpJump u inner join DownJump d on d.RunID = u.RunID

结果

RunID TimeUp TimeDown TimeDifference 1 10:00:05.0000000 10:00:15.0000000 10000 2 10:00:15.0000000 10:00:25.1000000 10100 3 10:00:25.0000000 10:00:35.2000000 10200 4 10:00:35.0000000 10:00:45.3000000 10300

我已经使用cte来提高查询的可读性，但你可以这样编写（只需加入）

select uj.RunID, TimeUp = uj.[Time], TimeDown = dj.[Time], TimeDifference = DATEDIFF(MILLISECOND, uj.Time, dj.Time) from @Jump uj inner join @TimeType ut on ut.Id = uj.[Type] inner join @Jump dj on dj.RunID = uj.RunID inner join @TimeType dt on dt.Id = dj.[Type] where ut.IsUpElseAssumeIsDown = 1 and dt.IsUpElseAssumeIsDown = 0

Answer 2

select
    r.RunID, r.PlayerID, ju.Time as TimeUp, jd.Time as TimeDown
from Run as R 
    left outer join Jump as ju on ju.RunID = r.RunID and ju.[Type] in (1, 3)
    left outer join Jump as jd on jd.RunID = r.RunID and jd.[Type] in (2, 4)

sql fiddle demo

Answer 3

SELECT r.RunID, up.Time, down.Time, DATEDIFF(millisecond, up.Time, down.Time) as miliseconds
     FROM Run r 
LEFT JOIN Jump up   ON r.RunID = up.RunID   AND (up.Type   = 1 OR up.Type = 3)
LEFT JOIN Jump down ON r.RunID = down.RunID AND (down.Type = 2 OR down.Type = 4)
WHERE up.JumpID IS NOT NULL AND down.JumpID IS NOT NULL

sqlFiddle

Answer 4

select J.RunID,Max(R.PlayerID) as PlayerID,min(J.Time) as TimeUP,max(J.time) as TimeDown
from Run R
inner join Jump J on R.RunID=J.RunID
inner join JumpType JT on J.Type=JT.TypeID
where JT.Description in ('UpPlatform','DownPlatform')
or JT.Description in ('UpPlatform','DownPlatform')
group by J.RunID
having COUNT(J.RunID)>1

<强> SQL Fiddle

SQL Server：来自多行的DateDiff的总和

4 个答案: