SQL 服务器并将时间分配到小时部分
SQL Server and allocate time into hour parts
背景：
救护车和消防车有紧急情况发生时的出动时间和宣布紧急情况结束的明确时间。
例如：紧急事件 (EventID = fire0001) 发生在 10:45:00，结束于 11:30:00。
另一个紧急事件 (EventID = fire0002) 开始于 11:50:00，结束于 13:10:00
问题：
我想解析从开始到结束的时间量，并在它发生时将其放入小时部分。例如; fire0001 从 10:45 开始，在 11:30 结束。
我希望结果在 10 小时部分显示 15 分钟，在 11 小时部分显示 30 分钟。
eventID HourOfDay Minutes forThisHourPart
------------------------------------------------
fire0001 10 15
fire0001 11 30
此信息可用于救护车规划以确定一天中每个小时的利用率。
在给定开始时间和结束时间的情况下，如何计算每小时花费的时间？
CREATE TABLE tempFireEvents
(
EventID VARCHAR(8) NOT NULL,
StartDateTime DATETIME NOT NULL,
EndDateTime DATETIME NOT NULL
)
INSERT INTO tempFireEvents
VALUES
('fire0001', 'november 1, 2018 10:45:00', 'november 1, 2108 11:30:00'),
('fire0002', 'november 1, 2018 11:50:00', 'november 1, 2018 13:10:00'),
('fire0003', 'november 1, 2018 13:20:00', 'november 1, 2108 14:20:00'),
('fire0004', 'november 1, 2018 15:25:00', 'november 1, 2018 16:05:00'),
('fire0005', 'november 1, 2018 16:20:00', 'november 1, 2018 16:50:00');
--SELECT EventID, StartDateTime, EndDateTime FROM tempFireEvents;
SELECT EventID,
DATEPART(hour, StartDateTime) AS HourOfDay,
DATEDIFF(minute, StartDateTime, DATEADD(hour, DATEDIFF(hour, 0, StartDateTime) + 1, 0)) AS MinutesForThisHourPart
FROM tempFireEvents
UNION ALL
SELECT EventID,
DATEPART(hour, EndDateTime) AS HourOfDay,
DATEDIFF(minute, EndDateTime, DATEADD(hour, DATEDIFF(hour, 0, EndDateTime) + 1, 0)) AS MinutesForThisHourPart
FROM tempFireEvents
ORDER BY 1
结果
EventID HourOfDay MinutesForThisHourPart
-------- ----------- ----------------------
fire0001 10 15
fire0001 11 30
fire0002 11 10
fire0002 13 50
fire0003 13 40
fire0003 14 40
fire0004 15 35
fire0004 16 55
fire0005 16 10
fire0005 16 40
可能是这样的
select EventID,
datepart(hour, StartDateTime) AS StartHour,
datediff(minute, StartDateTime, dateadd(hour, datediff(hour, 0, StartDateTime) + 1, 0)) AS StartMinutes,
datepart(hour, EndDateTime) AS EndHour,
datediff(minute, EndDateTime, dateadd(hour, datediff(hour, 0, EndDateTime) + 1, 0)) AS EndMinutes
from tempFireEvents
这个returns
EventID StartHour StartMinutes EndHour EndMinutes
------- --------- ------------ ------- ----------
fire0001 10 15 11 30
fire0002 11 10 13 50
fire0003 13 40 14 40
fire0004 15 35 16 55
fire0005 16 40 16 10
我相信这可以实现您想要的：
DECLARE @tempFireEvents TABLE
(
EventID VARCHAR(8) NOT NULL,
StartDateTime DATETIME NOT NULL,
EndDateTime DATETIME NOT NULL
)
INSERT INTO @tempFireEvents
VALUES
('fire0001', 'november 1, 2018 10:45:00', 'november 1, 2108 11:30:00'),
('fire0002', 'november 1, 2018 11:50:00', 'november 1, 2018 13:10:00'),
('fire0003', 'november 1, 2018 13:20:00', 'november 1, 2108 14:20:00'),
('fire0004', 'november 1, 2018 15:25:00', 'november 1, 2018 16:05:00'),
('fire0005', 'november 1, 2018 16:20:00', 'november 1, 2018 16:50:00')
;WITH AllHours AS
(
SELECT 1 AS hourInt
UNION ALL
SELECT hourInt+1
FROM AllHours
WHERE hourInt<23
), Combined AS
(
SELECT T.EventID,
H.hourInt,
CASE WHEN DATEPART(HOUR,T.StartDateTime)=H.hourInt THEN 1 ELSE 0 END AS isStart,
CASE WHEN DATEPART(HOUR,T.EndDateTime)=H.hourInt THEN 1 ELSE 0 END AS isEnd,
T.StartDateTime,
T.EndDateTime
FROM @tempFireEvents T
JOIN AllHours H ON H.hourInt BETWEEN DATEPART(HOUR,T.StartDateTime) AND DATEPART(HOUR,T.EndDateTime)
)
--SELECT * FROM Combined
SELECT EventID,
hourInt,
CASE WHEN isStart=1 AND isEnd=0 THEN 60-DATEPART(MINUTE,StartDateTime)
WHEN isStart=0 AND isEnd=1 THEN DATEPART(MINUTE,EndDateTime)
WHEN isStart=1 AND isEnd=1 THEN DATEPART(MINUTE,EndDateTime)-DATEPART(MINUTE,StartDateTime)
ELSE 60
END AS minutesForHour
FROM Combined
输出：
EventID hourInt minutesForHour
fire0001 10 15
fire0001 11 30
fire0002 11 10
fire0002 12 60
fire0002 13 10
fire0003 13 40
fire0003 14 20
fire0004 15 35
fire0004 16 5
fire0005 16 30
如评论中所述，您存储 EventID 的方式远非最佳。更好的方法是为每个事件分配一个 "type"，例如：
DECLARE @EventType TABLE
(
Id INT,
EventType NVARCHAR(50)
)
INSERT INTO @EventType
VALUES
(1,'Fire'),
(2,'Public Awareness'),
(3,'Cat in a Tree'),
(4,'Motor Vehicle Accident')
DECLARE @tempFireEvents TABLE
(
EventID INT IDENTITY (1,1) NOT NULL,
EventTypeID INT NOT NULL,
StartDateTime DATETIME NOT NULL,
EndDateTime DATETIME NOT NULL
)
INSERT INTO @tempFireEvents (EventTypeID,StartDateTime,EndDateTime)
VALUES
(1, 'november 1, 2018 10:45:00', 'november 1, 2108 11:30:00'),
(2, 'november 1, 2018 11:50:00', 'november 1, 2018 13:10:00'),
(4, 'november 1, 2018 13:20:00', 'november 1, 2108 14:20:00'),
(1, 'november 1, 2018 15:25:00', 'november 1, 2018 16:05:00'),
(3, 'november 1, 2018 16:20:00', 'november 1, 2018 16:50:00')
;WITH AllHours AS
(
SELECT 1 AS hourInt
UNION ALL
SELECT hourInt+1
FROM AllHours
WHERE hourInt<23
), Combined AS
(
SELECT T.EventID,
T.EventTypeID,
H.hourInt,
CASE WHEN DATEPART(HOUR,T.StartDateTime)=H.hourInt THEN 1 ELSE 0 END AS isStart,
CASE WHEN DATEPART(HOUR,T.EndDateTime)=H.hourInt THEN 1 ELSE 0 END AS isEnd,
T.StartDateTime,
T.EndDateTime
FROM @tempFireEvents T
JOIN AllHours H ON H.hourInt BETWEEN DATEPART(HOUR,T.StartDateTime) AND DATEPART(HOUR,T.EndDateTime)
)
--SELECT * FROM Combined
SELECT C.EventID,
T.EventType,
C.hourInt,
CASE WHEN C.isStart=1 AND C.isEnd=0 THEN 60-DATEPART(MINUTE,C.StartDateTime)
WHEN C.isStart=0 AND C.isEnd=1 THEN DATEPART(MINUTE,C.EndDateTime)
WHEN C.isStart=1 AND C.isEnd=1 THEN DATEPART(MINUTE,C.EndDateTime)-DATEPART(MINUTE,C.StartDateTime)
ELSE 60
END AS minutesForHour
FROM Combined C
Join @EventType t ON C.EventTypeID=T.Id
ORDER BY C.EventID, C.hourInt
输出：
EventID EventType hourInt minutesForHour
1 Fire 10 15
1 Fire 11 30
2 Public Awareness 11 10
2 Public Awareness 12 60
2 Public Awareness 13 10
3 Motor Vehicle Accident 13 40
3 Motor Vehicle Accident 14 20
4 Fire 15 35
4 Fire 16 5
5 Cat in a Tree 16 30
背景：
救护车和消防车有紧急情况发生时的出动时间和宣布紧急情况结束的明确时间。
例如：紧急事件 (EventID = fire0001) 发生在 10:45:00，结束于 11:30:00。
另一个紧急事件 (EventID = fire0002) 开始于 11:50:00，结束于 13:10:00
问题：
我想解析从开始到结束的时间量，并在它发生时将其放入小时部分。例如; fire0001 从 10:45 开始，在 11:30 结束。
我希望结果在 10 小时部分显示 15 分钟，在 11 小时部分显示 30 分钟。
eventID HourOfDay Minutes forThisHourPart
------------------------------------------------
fire0001 10 15
fire0001 11 30
此信息可用于救护车规划以确定一天中每个小时的利用率。
在给定开始时间和结束时间的情况下，如何计算每小时花费的时间？
CREATE TABLE tempFireEvents
(
EventID VARCHAR(8) NOT NULL,
StartDateTime DATETIME NOT NULL,
EndDateTime DATETIME NOT NULL
)
INSERT INTO tempFireEvents
VALUES
('fire0001', 'november 1, 2018 10:45:00', 'november 1, 2108 11:30:00'),
('fire0002', 'november 1, 2018 11:50:00', 'november 1, 2018 13:10:00'),
('fire0003', 'november 1, 2018 13:20:00', 'november 1, 2108 14:20:00'),
('fire0004', 'november 1, 2018 15:25:00', 'november 1, 2018 16:05:00'),
('fire0005', 'november 1, 2018 16:20:00', 'november 1, 2018 16:50:00');
--SELECT EventID, StartDateTime, EndDateTime FROM tempFireEvents;
SELECT EventID,
DATEPART(hour, StartDateTime) AS HourOfDay,
DATEDIFF(minute, StartDateTime, DATEADD(hour, DATEDIFF(hour, 0, StartDateTime) + 1, 0)) AS MinutesForThisHourPart
FROM tempFireEvents
UNION ALL
SELECT EventID,
DATEPART(hour, EndDateTime) AS HourOfDay,
DATEDIFF(minute, EndDateTime, DATEADD(hour, DATEDIFF(hour, 0, EndDateTime) + 1, 0)) AS MinutesForThisHourPart
FROM tempFireEvents
ORDER BY 1
结果
EventID HourOfDay MinutesForThisHourPart
-------- ----------- ----------------------
fire0001 10 15
fire0001 11 30
fire0002 11 10
fire0002 13 50
fire0003 13 40
fire0003 14 40
fire0004 15 35
fire0004 16 55
fire0005 16 10
fire0005 16 40
可能是这样的
select EventID,
datepart(hour, StartDateTime) AS StartHour,
datediff(minute, StartDateTime, dateadd(hour, datediff(hour, 0, StartDateTime) + 1, 0)) AS StartMinutes,
datepart(hour, EndDateTime) AS EndHour,
datediff(minute, EndDateTime, dateadd(hour, datediff(hour, 0, EndDateTime) + 1, 0)) AS EndMinutes
from tempFireEvents
这个returns
EventID StartHour StartMinutes EndHour EndMinutes
------- --------- ------------ ------- ----------
fire0001 10 15 11 30
fire0002 11 10 13 50
fire0003 13 40 14 40
fire0004 15 35 16 55
fire0005 16 40 16 10
我相信这可以实现您想要的：
DECLARE @tempFireEvents TABLE
(
EventID VARCHAR(8) NOT NULL,
StartDateTime DATETIME NOT NULL,
EndDateTime DATETIME NOT NULL
)
INSERT INTO @tempFireEvents
VALUES
('fire0001', 'november 1, 2018 10:45:00', 'november 1, 2108 11:30:00'),
('fire0002', 'november 1, 2018 11:50:00', 'november 1, 2018 13:10:00'),
('fire0003', 'november 1, 2018 13:20:00', 'november 1, 2108 14:20:00'),
('fire0004', 'november 1, 2018 15:25:00', 'november 1, 2018 16:05:00'),
('fire0005', 'november 1, 2018 16:20:00', 'november 1, 2018 16:50:00')
;WITH AllHours AS
(
SELECT 1 AS hourInt
UNION ALL
SELECT hourInt+1
FROM AllHours
WHERE hourInt<23
), Combined AS
(
SELECT T.EventID,
H.hourInt,
CASE WHEN DATEPART(HOUR,T.StartDateTime)=H.hourInt THEN 1 ELSE 0 END AS isStart,
CASE WHEN DATEPART(HOUR,T.EndDateTime)=H.hourInt THEN 1 ELSE 0 END AS isEnd,
T.StartDateTime,
T.EndDateTime
FROM @tempFireEvents T
JOIN AllHours H ON H.hourInt BETWEEN DATEPART(HOUR,T.StartDateTime) AND DATEPART(HOUR,T.EndDateTime)
)
--SELECT * FROM Combined
SELECT EventID,
hourInt,
CASE WHEN isStart=1 AND isEnd=0 THEN 60-DATEPART(MINUTE,StartDateTime)
WHEN isStart=0 AND isEnd=1 THEN DATEPART(MINUTE,EndDateTime)
WHEN isStart=1 AND isEnd=1 THEN DATEPART(MINUTE,EndDateTime)-DATEPART(MINUTE,StartDateTime)
ELSE 60
END AS minutesForHour
FROM Combined
输出：
EventID hourInt minutesForHour
fire0001 10 15
fire0001 11 30
fire0002 11 10
fire0002 12 60
fire0002 13 10
fire0003 13 40
fire0003 14 20
fire0004 15 35
fire0004 16 5
fire0005 16 30
如评论中所述，您存储 EventID 的方式远非最佳。更好的方法是为每个事件分配一个 "type"，例如：
DECLARE @EventType TABLE
(
Id INT,
EventType NVARCHAR(50)
)
INSERT INTO @EventType
VALUES
(1,'Fire'),
(2,'Public Awareness'),
(3,'Cat in a Tree'),
(4,'Motor Vehicle Accident')
DECLARE @tempFireEvents TABLE
(
EventID INT IDENTITY (1,1) NOT NULL,
EventTypeID INT NOT NULL,
StartDateTime DATETIME NOT NULL,
EndDateTime DATETIME NOT NULL
)
INSERT INTO @tempFireEvents (EventTypeID,StartDateTime,EndDateTime)
VALUES
(1, 'november 1, 2018 10:45:00', 'november 1, 2108 11:30:00'),
(2, 'november 1, 2018 11:50:00', 'november 1, 2018 13:10:00'),
(4, 'november 1, 2018 13:20:00', 'november 1, 2108 14:20:00'),
(1, 'november 1, 2018 15:25:00', 'november 1, 2018 16:05:00'),
(3, 'november 1, 2018 16:20:00', 'november 1, 2018 16:50:00')
;WITH AllHours AS
(
SELECT 1 AS hourInt
UNION ALL
SELECT hourInt+1
FROM AllHours
WHERE hourInt<23
), Combined AS
(
SELECT T.EventID,
T.EventTypeID,
H.hourInt,
CASE WHEN DATEPART(HOUR,T.StartDateTime)=H.hourInt THEN 1 ELSE 0 END AS isStart,
CASE WHEN DATEPART(HOUR,T.EndDateTime)=H.hourInt THEN 1 ELSE 0 END AS isEnd,
T.StartDateTime,
T.EndDateTime
FROM @tempFireEvents T
JOIN AllHours H ON H.hourInt BETWEEN DATEPART(HOUR,T.StartDateTime) AND DATEPART(HOUR,T.EndDateTime)
)
--SELECT * FROM Combined
SELECT C.EventID,
T.EventType,
C.hourInt,
CASE WHEN C.isStart=1 AND C.isEnd=0 THEN 60-DATEPART(MINUTE,C.StartDateTime)
WHEN C.isStart=0 AND C.isEnd=1 THEN DATEPART(MINUTE,C.EndDateTime)
WHEN C.isStart=1 AND C.isEnd=1 THEN DATEPART(MINUTE,C.EndDateTime)-DATEPART(MINUTE,C.StartDateTime)
ELSE 60
END AS minutesForHour
FROM Combined C
Join @EventType t ON C.EventTypeID=T.Id
ORDER BY C.EventID, C.hourInt
输出：
EventID EventType hourInt minutesForHour
1 Fire 10 15
1 Fire 11 30
2 Public Awareness 11 10
2 Public Awareness 12 60
2 Public Awareness 13 10
3 Motor Vehicle Accident 13 40
3 Motor Vehicle Accident 14 20
4 Fire 15 35
4 Fire 16 5
5 Cat in a Tree 16 30