How to get sum of time field in SQL server 2008 - sql

I am facing a problem in finding the sum of values stored in a column,
I have a table like this:
gs_cycle_no | from_time | to_time | total_hours(varchar) ...
GSC-334/2012 | 13:00 | 7:00 | 42:00
GSC-334/2012 | 8:30 | 3:45 | 6:00
.
.
.
What i need to find is the Sum(total_hours) group by gs_cycle_no.
But the Sum method will not work on the varchar column and also i cant convert it to decimal due to its format,
How can i find the sum of total_hours column, based on gs_cycle_no?


if you have no minutes and only hours, then you can do something like:
select
cast(sum(cast(replace(total_hours, ':', '') as int) / 100) as nvarchar(max)) + ':00'
from Table1
group by gs_cycle_no
if you don't, try this:
with cte as
(
select
gs_cycle_no,
sum(cast(left(total_hours, len(total_hours) - 3) as int)) as h,
sum(cast(right(total_hours, 2) as int)) as m
from Table1
group by gs_cycle_no
)
select
gs_cycle_no,
cast(h + m / 60 as nvarchar(max)) + ':' +
right('00' + cast(m % 60 as nvarchar(max)), 2)
from cte
sql fiddle demo


This will work:
;with times as (
select gs_cycle_no = 'GSC-334/2012', total_hours = '8:35'
union all SELECT gs_cycle_no = 'GSC-334/2012', '5:00'
union all SELECT gs_cycle_no = 'GSC-334/2012', '16:50'
union all SELECT gs_cycle_no = 'GSC-334/2012', '42:00'
union all SELECT gs_cycle_no = 'GSC-335/2012', '0:00'
union all SELECT gs_cycle_no = 'GSC-335/2012', '175:52'
union all SELECT gs_cycle_no = 'GSC-335/2012', '12:25')
SELECT
gs_cycle_no,
hrs = sum(mins) / 60 + sum(hrs),
mins = sum(mins) % 60
FROM
TIMES
cross apply(
select c = charindex(':', total_hours)
) idx
cross apply(
select
hrs = cast(substring(total_hours, 1, c - 1) as int),
mins = cast(substring(total_hours, c + 1, len(total_hours)) as int)
) ext
group by gs_cycle_no
order by gs_cycle_no


This query finds sum in minutes:
SQLFiddle demo
select gs_cycle_no,
SUM(
CAST(
ISNULL(
substring(total_hours,1,CHARINDEX(':',total_hours)-1)
,'0') as INT) * 60
+
CAST(
ISNULL(
substring(total_hours,CHARINDEX(':',total_hours)+1,100)
,'0') as INT)
)
from t
group by gs_cycle_no


Here is solution where I break varchar into two small pieces, hours and minutes, and then make minutes from them, and at last, SUM them:
SELECT
gs_cycle_no,
CAST(SUM(
SUBSTRING(total_hours,0 ,CHARINDEX(':', total_hours)) * 60 +
SUBSTRING(total_hours, CHARINDEX(':', total_hours) + 1, LEN(total_hours))) / 60 AS VARCHAR) + ':' +
CAST(SUM(
SUBSTRING(total_hours,0 ,CHARINDEX(':', total_hours)) * 60 +
SUBSTRING(total_hours, CHARINDEX(':', total_hours) + 1, LEN(total_hours))) % 60 AS VARCHAR)
FROM Table1
GROUP BY gs_cycle_no

Related

How to calculate the sum of time with SQL SERVER? [duplicate]

I have a column called "WrkHrs" and the data type is time(hh:mm:ss). I want to sum up the working hours for employees. But since it's time data type sql server doesn't let me use like sum(columnname).
How can I sum up the time data type fieled in sql query?

SELECT EmployeeID, minutes_worked = SUM(DATEDIFF(MINUTE, '0:00:00', WrkHrs))
FROM dbo.table
-- WHERE ...
GROUP BY EmployeeID;
You can format it pretty on the front end. Or in T-SQL:
;WITH w(e, mw) AS
(
SELECT EmployeeID, SUM(DATEDIFF(MINUTE, '0:00:00', WrkHrs))
FROM dbo.table
-- WHERE ...
GROUP BY EmployeeID
)
SELECT EmployeeID = e,
WrkHrs = RTRIM(mw/60) + ':' + RIGHT('0' + RTRIM(mw%60),2)
FROM w;
However, you're using the wrong data type. TIME is used to indicate a point in time, not an interval or duration. Wouldn't it make sense to store their work hours in two distinct columns, StartTime and EndTime?

In order to sum up the working hours for an employee you can calculate the difference between the shift start time and end time in minutes and convert it to readable format as following:
DECLARE #StartTime datetime = '08:00'
DECLARE #EndTime datetime = '10:47'
DECLARE #durMinutes int
DECLARE #duration nvarchar(5)
SET #durMinutes = DATEDIFF(MINUTE, #StartTime, #EndTime)
SET #duration =
(SELECT RIGHT('00' + CAST((#durMinutes / 60) AS VARCHAR(2)),2) + ':' +
RIGHT('00' + CAST((#durMinutes % 60) AS VARCHAR(2)), 2))
SELECT #duration
The result : 02:47
two hours and 47 minutes

select DATEDIFF(MINUTE, '0:00:00', '00:02:08')
results in :- 2
select DATEDIFF(SECOND, '0:00:00', '00:02:08')
results in :- 128
Using seconds gives a better answer.
So I think the answer can be
SELECT
EmployeeId
, seconds_worked = SUM (DATEDIFF (SECOND, '0:00:00', WrkHrs))
FROM
tbl_employee
GROUP BY
EmployeeId;

DECLARE #Tab TABLE
(
data CHAR(5)
)
INSERT #Tab
SELECT '25:30' UNION ALL
SELECT '31:45' UNION ALL
SELECT '16:00'
SELECT STUFF(CONVERT(CHAR(8), DATEADD(SECOND, theHours + theMinutes,
'19000101'), 8), 1, 2, CAST((theHours + theMinutes) / 3600 AS VARCHAR(12)))
FROM (
SELECT ABS(SUM(CASE CHARINDEX(':', data) WHEN 0 THEN 0 ELSE 3600 *
LEFT(data, CHARINDEX(':', data) - 1) END)) AS theHours,
ABS(SUM(CASE CHARINDEX(':', data) WHEN 0 THEN 0 ELSE 60 *
SUBSTRING(data, CHARINDEX(':', data) + 1, 2) END)) AS theMinutes
FROM #Tab
) AS d

For MS SQL Server, when your WorkingTime is stored as a time, or a varchar in order to sum it up you should consider that:
1) Time format is not supporting sum, so you need to parse it
2) 23:59:59.9999999 is the maximum value for the time.
So, the code that will work to get you the total number of WorkingHours:WorkingMinutes:WorkingSeconds would be the following:
SELECT
CAST(FORMAT((SUM((DATEPART("ss",WorkingTime) + DATEPART("mi",WorkingTime) * 60 + DATEPART("hh",WorkingTime) * 3600)) / 3600),'00') as varchar(max)) + ':' +
CAST(FORMAT((SUM((DATEPART("ss",WorkingTime) + DATEPART("mi",WorkingTime) * 60 + DATEPART("hh",WorkingTime) * 3600)) % 3600 / 60),'00') as varchar(max)) + ':' +
CAST(FORMAT((SUM((DATEPART("ss",WorkingTime) + DATEPART("mi",WorkingTime) * 60 + DATEPART("hh",WorkingTime) * 3600)) % 3600 % 60),'00') as varchar(max)) as WorkingTimeSum
FROM TableName

It must be as simple as that.
Steps
convert time to seconds
sum the RESULT
convert the sum to time
Eg:
take a case you might want to sum the following time:
| present_hours |
|-----------------|
| 00:01:20.000000 |
|-----------------|
| 00:01:13.000000 |
|-----------------|
| 00:01:45.000000 |
|-----------------|
| 00:01:03.000000 |
|-----------------|
| 00:01:10.000000 |
|-----------------|
| 00:00:56.000000 |
SELECT SEC_TO_TIME(SUM(TIME_TO_SEC(present_hours))) as total_present_hours FROM time_booking;

T-SQL: calculate age then add character to result

Been stuck on this one for a while now. Let's say I have a Client table like the one here:
Name BirthDayNum BirthMonthNum BirthYearNum
--------------------------------------------------
John 23 12 1965
Jane 4 9 1975
Joe 6 3 1953
Currently I am calculating the age using this syntax: (sorry if it is hard to read)
DATEDIFF(year, CONVERT(datetime, CAST(client.BirthMonthNum AS varchar(2))
+ '-' + CAST(client.BirthDayNum AS varchar(2))
+ '-' + CAST(client.BirthYearNum AS varchar(4)), 101), GETDATE())
- (CASE WHEN dateadd(YY, DATEDIFF(year, CONVERT(datetime, CAST(client.BirthMonthNum AS varchar(2))
+ '-' + CAST(client.BirthDayNum AS varchar(2))
+ '-' + CAST(client.BirthYearNum AS varchar(4)), 101), GETDATE()),
CONVERT(datetime, CAST(client.BirthMonthNum AS varchar(2))
+ '-' + CAST(client.BirthDayNum AS varchar(2))
+ '-' + CAST(client.BirthYearNum AS varchar(4)), 101)) > getdate() THEN 1 ELSE 0 END) AS 'Client Age'
This will give me the age in years. Of course if I want months, I just change the DATEDIFF(year to month. So, what I am trying to do now is this.
Continue to calculate the age, but instead of returning either years or months, I would like to return the age in years and months, but also, concat a 'y' and 'm' within the value as well. Ex. 41y 11m for Jane above.
So basically I am trying to figure out how to add a char to the return value, as well as calculate the remaining months beyond the year calculation.
Any help would be greatly appreciated!

Tired of twisting myself into knots with date calculations, I created a Table-Valued-Function to calculate elapsed time in Years, Months, Days, Hours, Minutes, and Seconds.
Example
Declare #YourTable table (Name varchar(50),BirthDayNum int, BirthMonthNum int, BirthYearNum int)
Insert Into #YourTable values
('John', 23, 12, 1965),
('Jane', 4, 9, 1975),
('Joe', 6, 3, 1953)
Select A.Name
,B.*
,Age = concat(C.Years,'y ',C.Months,'m')
From #YourTable A
Cross Apply (Select DOB = DateFromParts(A.BirthYearNum,A.BirthMonthNum,A.BirthDayNum)) B
Cross Apply [dbo].[udf-Date-Elapsed](B.DOB,GetDate()) C
Returns
Name DOB Age
John 1965-12-23 51y 3m
Jane 1975-09-04 41y 6m
Joe 1953-03-06 64y 0m
The UDF - May look like overkill, but it is very performant
CREATE FUNCTION [dbo].[udf-Date-Elapsed] (#D1 DateTime,#D2 DateTime)
Returns Table
Return (
with cteBN(N) as (Select 1 From (Values(1),(1),(1),(1),(1),(1),(1),(1),(1),(1)) N(N)),
cteRN(R) as (Select Row_Number() Over (Order By (Select NULL))-1 From cteBN a,cteBN b,cteBN c),
cteYY(N,D) as (Select Max(R),Max(DateAdd(YY,R,#D1))From cteRN R Where DateAdd(YY,R,#D1)<=#D2),
cteMM(N,D) as (Select Max(R),Max(DateAdd(MM,R,D)) From (Select Top 12 R From cteRN Order By 1) R, cteYY P Where DateAdd(MM,R,D)<=#D2),
cteDD(N,D) as (Select Max(R),Max(DateAdd(DD,R,D)) From (Select Top 31 R From cteRN Order By 1) R, cteMM P Where DateAdd(DD,R,D)<=#D2),
cteHH(N,D) as (Select Max(R),Max(DateAdd(HH,R,D)) From (Select Top 24 R From cteRN Order By 1) R, cteDD P Where DateAdd(HH,R,D)<=#D2),
cteMI(N,D) as (Select Max(R),Max(DateAdd(MI,R,D)) From (Select Top 60 R From cteRN Order By 1) R, cteHH P Where DateAdd(MI,R,D)<=#D2),
cteSS(N,D) as (Select Max(R),Max(DateAdd(SS,R,D)) From (Select Top 60 R From cteRN Order By 1) R, cteMI P Where DateAdd(SS,R,D)<=#D2)
Select [Years] = cteYY.N
,[Months] = cteMM.N
,[Days] = cteDD.N
,[Hours] = cteHH.N
,[Minutes] = cteMI.N
,[Seconds] = cteSS.N
From cteYY,cteMM,cteDD,cteHH,cteMI,cteSS
)
--Max 1000 years
--Select * from [dbo].[udf-Date-Elapsed] ('1991-09-12 21:00:00.000',GetDate())
Just to Illustrate
The TVF without any secondary string manipulation would return
Select A.Name
,B.*
From #YourTable A
Cross Apply [dbo].[udf-Date-Elapsed](DateFromParts(A.BirthYearNum,A.BirthMonthNum,A.BirthDayNum),GetDate()) B
EDIT - READ ONLY VERSION
Select A.Name
,B.*
,Age = concat(DateDiff(MONTH,B.DOB,GetDate())/12,'y ',DateDiff(MONTH,B.DOB,GetDate()) % 12,'m')
From #YourTable A
Cross Apply (Select DOB = DateFromParts(A.BirthYearNum,A.BirthMonthNum,A.BirthDayNum)) B

Yes it is easier to save as DOB.. But one simple method
select concat( floor(datediff(year, datefromparts(birthyearnum,birthmonthnum,birthdaynum), getdate()))-1, 'y ', datediff(month, datefromparts(birthyearnum,birthmonthnum,birthdaynum), getdate())%12, 'm')
from #yourDates
How age for 1965 is 41y?
Input table:
create table #yourdates(Name varchar(10), BirthdayNum int, BirthMonthNum int, BirthYearNum int)
insert into #yourdates
(Name, BirthdayNum, BirthMonthNum, BirthYearNum) values
('John', 23 , 12 , 1965 )
,('Jane', 4 , 9 , 1975 )
,('Joe ', 6 , 3 , 1953 )

If you are on 2008 or lesser and can't use datefromparts...
declare #table table ([Name] varchar(4), BirthDayNum int, BirthMonthNum int, BirthYearNum int)
insert into #table
values
('John',23,12,1965),
('Jane',4,9,1975),
('Day',30,3,1990)
;with cte as(
select
[Name],
cast(BirthYearNum as varchar(4)) + '/' + cast(BirthMonthNum as varchar(2)) + '/' + cast(BirthDayNum as varchar(2)) as DOB
from
#table)
select
[Name]
,DOB
,datediff(year,DOB,GETDATE()) as Years
,datediff(month,DOB,GETDATE()) %12 as Months
,rtrim(cast(datediff(year,DOB,GETDATE()) as char(2))) + 'y ' + rtrim(cast(datediff(month,DOB,GETDATE()) %12 as char(2))) + 'm' as Age
from cte

SQL Server, calculating total hours per day with multiple breaks

I am creating a query to get the total hours elapsed in a day by someone, however there can be multiple breaks in the times per day.
Here is the query that I have at the moment.
SELECT
CHINA_VISION_DorEvents.DorCtrls_Ref,
CHINA_VISION_PubCards.CardCode,
CHINA_VISION_DorEvents.EventTM
FROM
CHINA_VISION_PubCards
INNER JOIN
CHINA_VISION_DorEvents ON CHINA_VISION_PubCards.CardCode = CHINA_VISION_DorEvents.CardCode
WHERE
(CHINA_VISION_PubCards.CardCode = '000006f1')
AND CHINA_VISION_DorEvents.DorCtrls_Ref = '16'
ORDER BY
CONVERT(Date,CHINA_VISION_DorEvents.EventTM) DESC
This query doesn't currently attempt to work out the elapsed time, but here are the results of this so you can see how the data looks.
Ref CardCode EventTM
---------------------------------------
16 000006f1 2015-01-27 07:32:35.000
16 000006f1 2015-01-26 07:38:02.000
16 000006f1 2015-01-26 12:30:54.000
16 000006f1 2015-01-26 13:03:28.000
16 000006f1 2015-01-26 17:28:47.000
16 000006f1 2015-01-23 07:31:10.000
16 000006f1 2015-01-23 12:22:50.000
16 000006f1 2015-01-23 12:47:51.000
16 000006f1 2015-01-23 17:00:20.000
16 000006f1 2015-01-22 07:35:03.000
16 000006f1 2015-01-22 12:28:13.000
16 000006f1 2015-01-22 13:03:12.000
16 000006f1 2015-01-22 16:55:56.000
As you can see most days there are 4 records, and i need to work out the elapsed time for them so for example for the 26
07:38:02
12:30:54
elapsed time = 4 hours, 52 minutes and 52 seconds
13:03:28
17:28:47
Elapsed time = 4 hours, 25 minutes and 19 seconds
So the total elapsed for the 26th would be 9 hours 17 minuets 71
So in the result it would look like
Date Elapsed
2015-01-26 9:17:71
and so on
We do not need to calculate between 2-3 as the user is not logged on on here.
1 2 3 4
think of it like this ON - OFF BACK ON - OFF
table structure
Name type allow null
Reference int Unchecked
DorCtrls_Ref int Checked
EventsID tinyint Checked
EventTM datetime Checked
CardCode varchar(50) Checked
JustificationCode tinyint Checked
RecordIndex bigint Checked
Memo varchar(50) Checked
TempltCard varchar(1024)Checked
Templtlength varchar(32)Checked
TempltDir varchar(50) Checked

If you're not using a very old version of SQL Server, this will work for you:
Test Data:
CREATE TABLE Test(Ref int, CardCode varchar(20), EventTM datetime)
insert into Test
select 16,'000006f1','2015-01-27T07:32:35.000' union all
select 16,'000006f1','2015-01-26T07:38:02.000' union all
select 16,'000006f1','2015-01-26T12:30:54.000' union all
select 16,'000006f1','2015-01-26T13:03:28.000' union all
select 16,'000006f1','2015-01-26T17:28:47.000' union all
select 16,'000006f1','2015-01-23T07:31:10.000' union all
select 16,'000006f1','2015-01-23T12:22:50.000' union all
select 16,'000006f1','2015-01-23T12:47:51.000' union all
select 16,'000006f1','2015-01-23T17:00:20.000' union all
select 16,'000006f1','2015-01-22T07:35:03.000' union all
select 16,'000006f1','2015-01-22T12:28:13.000' union all
select 16,'000006f1','2015-01-22T13:03:12.000' union all
select 16,'000006f1','2015-01-22T16:55:56.000';
Query:
WITH ByDays AS ( -- Number the entry register in each day
SELECT
EventTm AS T,
CONVERT(VARCHAR(10),EventTm,102) AS Day,
FLOOR(CONVERT(FLOAT,EventTm)) DayNumber,
ROW_NUMBER() OVER(PARTITION BY FLOOR(CONVERT(FLOAT,EventTm)) ORDER BY EventTm) InDay
FROM Test
)
--SELECT * FROM ByDays ORDER BY T
,Diffs AS (
SELECT
E.Day,
E.T ET, O.T OT, O.T-E.T Diff,
DATEDIFF(S,E.T,O.T) DiffSeconds -- difference in seconds
FROM
(SELECT BE.T, BE.Day, BE.InDay
FROM ByDays BE
WHERE BE.InDay % 2 = 1) E -- Even rows
INNER JOIN
(SELECT BO.T, BO.Day, BO.InDay
FROM ByDays BO
WHERE BO.InDay % 2 = 0) O -- Odd rows
ON E.InDay + 1 = O.InDay -- Join rows (1,2), (3,4) and so on
AND E.Day = O.Day -- in the same day
)
--SELECT * FROM Diffs
SELECT Day,
SUM(DiffSeconds) Seconds,
CONVERT(VARCHAR(8),
(DATEADD(S, SUM(DiffSeconds), '1900-01-01T00:00:00')),
108) TotalHHMMSS -- The same, formatted as HH:MM:SS
FROM Diffs GROUP BY Day
The result looks like this.
Day Seconds TotalHHMMSS
2015.01.22 31554 08:45:54
2015.01.23 32649 09:04:09
2015.01.26 33491 09:18:11
See the corresponding sql fiddle: http://sqlfiddle.com/#!3/e1d31/1

From your result you have posted in your question, you can try the below code
CREATE TABLE #TEMP(Ref INT,CardCode VARCHAR(40),EventTM DATETIME)
INSERT INTO #TEMP
SELECT 16, '000006f1', '2015-01-27 07:32:35.000'
UNION ALL
SELECT 16, '000006f1', '2015-01-26 07:38:02.000'
UNION ALL
SELECT 16, '000006f1', '2015-01-26 12:30:54.000'
UNION ALL
SELECT 16, '000006f1', '2015-01-26 13:03:28.000'
UNION ALL
SELECT 16, '000006f1', '2015-01-26 17:28:47.000'
UNION ALL
SELECT 16, '000006f1', '2015-01-23 07:31:10.000'
UNION ALL
SELECT 16, '000006f1', '2015-01-23 12:22:50.000'
UNION ALL
SELECT 16, '000006f1', '2015-01-23 12:47:51.000'
UNION ALL
SELECT 16, '000006f1', '2015-01-23 17:00:20.000'
UNION ALL
SELECT 16, '000006f1', '2015-01-22 07:35:03.000'
UNION ALL
SELECT 16, '000006f1', '2015-01-22 12:28:13.000'
UNION ALL
SELECT 16, '000006f1', '2015-01-22 13:03:12.000'
UNION ALL
SELECT 16, '000006f1', '2015-01-22 16:55:56.000'
QUERY
;WITH CTE AS
(
-- Gets row number Order the date
SELECT ROW_NUMBER() OVER( ORDER BY EventTM)RNO, *
FROM #TEMP
)
,CTE2 AS
(
-- Split to hours,minutes and seconds
SELECT C1.*,C2.EventTM EM,DATEDIFF(S,C1.EventTM,C2.EventTM)DD,
cast(
(cast(cast(C2.EventTM as float) - cast(C1.EventTM as float) as int) * 24)
+ datepart(hh, C2.EventTM - C1.EventTM)
as INT)HH
,CAST(right('0' + cast(datepart(mi, C2.EventTM - C1.EventTM) as varchar(2)), 2)AS INT)MM
,CAST(right('0' + cast(datepart(ss, C2.EventTM - C1.EventTM) as varchar(2)), 2)AS INT)SS
FROM CTE C1
LEFT JOIN CTE C2 ON C1.RNO=C2.RNO-1
WHERE C1.RNO % 2 <> 0
),
CTE3 AS
(
-- Sum the hours, minute and seconds
SELECT CAST(EventTM AS DATE)EventTM,
SUM(HH) HH,SUM(MM) MM,SUM(SS) SS
FROM CTE2
GROUP BY CAST(EventTM AS DATE)
)
-- Format the elapsed time
SELECT EventTM,
CASE WHEN MM >=60 THEN CAST(HH+1 AS VARCHAR(10)) END + ':' +
CASE WHEN MM >=60 THEN right('0' + CAST(MM-60 AS VARCHAR(10)),2) END + ':' +
CAST(SS AS VARCHAR(10))Elapsed
FROM CTE3
Click here to view result
EDIT :
From your query, you can use the below code
;WITH CTE AS
(
-- Gets row number Order the date
SELECT ROW_NUMBER() OVER( ORDER BY CONVERT(DateTime,CHINA_VISION_DorEvents.EventTM))RNO,
CHINA_VISION_DorEvents.DorCtrls_Ref Ref,
CHINA_VISION_PubCards.CardCode,
CONVERT(DateTime,CHINA_VISION_DorEvents.EventTM) EventTM
FROM CHINA_VISION_PubCards INNER JOIN
CHINA_VISION_DorEvents ON CHINA_VISION_PubCards.CardCode = CHINA_VISION_DorEvents.CardCode
WHERE (CHINA_VISION_PubCards.CardCode = '000006f1')
and CHINA_VISION_DorEvents.DorCtrls_Ref= '16'
)
,CTE2 AS
(
-- Split to hours,minutes and seconds
SELECT C1.*,C2.EventTM EM,DATEDIFF(S,C1.EventTM,C2.EventTM)DD,
cast(
(cast(cast(C2.EventTM as float) - cast(C1.EventTM as float) as int) * 24)
+ datepart(hh, C2.EventTM - C1.EventTM)
as INT)HH
,CAST(right('0' + cast(datepart(mi, C2.EventTM - C1.EventTM) as varchar(2)), 2)AS INT)MM
,CAST(right('0' + cast(datepart(ss, C2.EventTM - C1.EventTM) as varchar(2)), 2)AS INT)SS
FROM CTE C1
LEFT JOIN CTE C2 ON C1.RNO=C2.RNO-1
WHERE C1.RNO % 2 <> 0
),
CTE3 AS
(
-- Sum the hours, minute and seconds
SELECT CAST(EventTM AS DATE)EventTM,
SUM(HH) HH,SUM(MM) MM,SUM(SS) SS
FROM CTE2
GROUP BY CAST(EventTM AS DATE)
)
-- Format the elapsed time
SELECT EventTM,
CASE WHEN MM >=60 THEN CAST(HH+1 AS VARCHAR(10)) END + ':' +
CASE WHEN MM >=60 THEN right('0' + CAST(MM-60 AS VARCHAR(10)),2) END + ':' +
CAST(SS AS VARCHAR(10))Elapsed
FROM CTE3

Try this,The out put is correct .
your output is wrong.9:17:71 is wrong.it should be 9:18:11.
Declare #t table(Ref int, CardCode varchar(20), EventTM datetime)
insert into #t
select 16,'000006f1','2015-01-27 07:32:35.000' union all
select 16,' 000006f1','2015-01-26 07:38:02.000' union all
select 16,' 000006f1','2015-01-26 12:30:54.000' union all
select 16,' 000006f1','2015-01-26 13:03:28.000' union all
select 16,' 000006f1','2015-01-26 17:28:47.000' union all
select 16,' 000006f1','2015-01-23 07:31:10.000' union all
select 16,' 000006f1','2015-01-23 12:22:50.000' union all
select 16,' 000006f1','2015-01-23 12:47:51.000' union all
select 16,' 000006f1','2015-01-23 17:00:20.000' union all
select 16,' 000006f1','2015-01-22 07:35:03.000' union all
select 16,' 000006f1','2015-01-22 12:28:13.000' union all
select 16,' 000006f1','2015-01-22 13:03:12.000' union all
select 16,' 000006f1','2015-01-22 16:55:56.000'
;with CTE as
(
select *,row_number()over(partition by dateadd(d,0,datediff(d,0,EventTM))
order by EventTM)rn from #t
)
,CTE1 as
(
select Ref,CardCode,EventTM, rn oddrn,0 TimeElapse from CTE where rn%2<>0
union all
select a.Ref,a.CardCode,a.EventTM, rn ,datediff(s,b.EventTM,a.EventTM)
from CTE a
inner join CTE1 b on
dateadd(d,0,datediff(d,0,a.EventTM))= dateadd(d,0,datediff(d,0,b.EventTM))
and a.ref=b.ref
and a.rn-b.oddrn=1 and a.rn%2=0
)
select EventTM,cast((convert(varchar(5),TimeElapse/3600) +':'+
convert(varchar(5),TimeElapse%3600/60)
+':'+ convert(varchar(5),TimeElapse%60)) as datetime) from
(select dateadd(d,0,datediff(d,0,EventTM)) EventTM,sum(TimeElapse) TimeElapse
from cte1
where TimeElapse>0
group by dateadd(d,0,datediff(d,0,EventTM)))tbl

I haven't been able to test this myself but it may give you a good start. I would use a cursor if you want to keep it in SQL although I'd probably prefer to do it in CLR. Others may have a better method but you can try this:
Declare #olddate datetime,
#date datetime
DECLARE #Table table (Ref int, CardCode varchar(20), EventTM datetime, ElapsedTime varchar(30))
Declare cur_mycursor Cursor fast_forward for
SELECT CHINA_VISION_DorEvents.EventTM
FROM CHINA_VISION_PubCards INNER JOIN
CHINA_VISION_DorEvents ON CHINA_VISION_PubCards.CardCode = CHINA_VISION_DorEvents.CardCode
WHERE (CHINA_VISION_PubCards.CardCode = '000006f1')
and CHINA_VISION_DorEvents.DorCtrls_Ref= '16'
Order by CHINA_VISION_DorEvents.EventTM desc
Open cur_mycursor
Fetch next from cur_mycursor into #olddate
While ##FETCH_STATUS = 0
Begin
Fetch next from cur_mycursor into #date
INSERT INTO #Table (Ref, CardCode, EventTM, ElapsedTime)
SELECT CHINA_VISION_DorEvents.DorCtrls_Ref,
CHINA_VISION_PubCards.CardCode,
CHINA_VISION_DorEvents.EventTM,
case when Convert(varchar, #date, 112) = Convert(varchar, CHINA_VISION_DorEvents.EventTM, 112)
then Cast(datediff(mi, #date, CHINA_VISION_DorEvents.EventTM) / 1440 as varchar) + ' days ' +
Cast(datediff(mi, #date, CHINA_VISION_DorEvents.EventTM) % 1440 / 60 as varchar) + ' hours ' +
Cast(datediff(mi, #date, CHINA_VISION_DorEvents.EventTM) % 1440 %60 as varchar) + ' minutes'
else '0'
end as elapsedtime
FROM CHINA_VISION_PubCards INNER JOIN
CHINA_VISION_DorEvents ON CHINA_VISION_PubCards.CardCode = CHINA_VISION_DorEvents.CardCode
WHERE (CHINA_VISION_PubCards.CardCode = '000006f1')
and CHINA_VISION_DorEvents.DorCtrls_Ref= '16' and CHINA_VISION_DorEvents.EventTM = #olddate
Order by CHINA_VISION_DorEvents.EventTM desc
Set #olddate = #date
end
close cur_mycursor
Select * from #Table order by EventTM asc
deallocate cur_mycursor

Convert four Digit number into hour format SQL

I have looked into Cast and Convert, but I cannot find a way to do this. I need to convert four digits into an hour format. For instance, 0800 would become 8:00 or 1530 would become 15:30. I cannot use functions, I'm using a InterSystem's CacheSQL. Any suggestions? Thanks in advance!
EDIT:
If it is any more convenient, I can just divide the four digits by one hundred to get values like 15 from original 1500, or 8.30 from 0830. Does this make converting to hour:minute format easier?

For CacheSQL, you can do this:
SELECT {fn TRIM(LEADING '0' FROM LEFT(col_name, 2) || ':' || RIGHT(col_name, 2)) }
FROM table_name

In SQL Server 2008, given data that looks like
create table #data
(
HHMM int not null ,
)
insert #data values ( 0800 )
insert #data values ( 0815 )
insert #data values ( 1037 )
insert #data values ( 2359 )
You can say:
select * ,
strTime = right( '0' + convert(varchar, HHMM / 100 ) , 2 )
+ ':'
+ right( '0' + convert(varchar, HHMM % 100 ) , 2 ) ,
myTime = convert(time ,
right( '0' + convert(varchar, HHMM / 100 ) , 2 )
+ ':'
+ right( '0' + convert(varchar, HHMM % 100 ) , 2 ) ,
120
)
from #data
Other SQL implementations likely have similar functionality.
In earlier versions of SQL Server that lack the time datatype, just use datetime, thus:
select * ,
strTime = right( '0' + convert(varchar, HHMM / 100 ) , 2 )
+ ':'
+ right( '0' + convert(varchar, HHMM % 100 ) , 2 ) ,
myTime = convert(datetime,
right( '0' + convert(varchar, HHMM / 100 ) , 2 )
+ ':'
+ right( '0' + convert(varchar, HHMM % 100 ) , 2 ) ,
120
)
from #data
You'll get a datetime value that is 1 Jan 1900 with the desired time-of-day.

Well, if it is something like Oracle you might have a try with the to_date() function.
Read more here.
Example:
SELECT to_date(yourColumn, 'HH24MI') FROM ...
EDIT (why? see comments): If necessary (I'm actually not familiar with Oracle) you can wrap another function like TIME() around it.
SELECT TIME(to_date(yourColumn, 'HH24MI')) FROM ...
Read more about TIME() here.
</EDIT>
In MySQL the equivalent would be the STR_TO_DATE() function:
SELECT STR_TO_DATE(yourColumn, '%H%i') FROM ...
Read about STR_TO_DATE() and its parameters under the DATE_FORMAT() function.

left( case when (EndTime / 100) < 10 then ('0'+ convert(varchar, EndTime / 100 )) else convert(varchar, EndTime / 100 ) end, 2 )
+ ':'
+ right( '0' + convert(varchar, EndTime % 100 ) , 2 )

How to sum up time field in SQL Server

I have a column called "WrkHrs" and the data type is time(hh:mm:ss). I want to sum up the working hours for employees. But since it's time data type sql server doesn't let me use like sum(columnname).
How can I sum up the time data type fieled in sql query?

SELECT EmployeeID, minutes_worked = SUM(DATEDIFF(MINUTE, '0:00:00', WrkHrs))
FROM dbo.table
-- WHERE ...
GROUP BY EmployeeID;
You can format it pretty on the front end. Or in T-SQL:
;WITH w(e, mw) AS
(
SELECT EmployeeID, SUM(DATEDIFF(MINUTE, '0:00:00', WrkHrs))
FROM dbo.table
-- WHERE ...
GROUP BY EmployeeID
)
SELECT EmployeeID = e,
WrkHrs = RTRIM(mw/60) + ':' + RIGHT('0' + RTRIM(mw%60),2)
FROM w;
However, you're using the wrong data type. TIME is used to indicate a point in time, not an interval or duration. Wouldn't it make sense to store their work hours in two distinct columns, StartTime and EndTime?

In order to sum up the working hours for an employee you can calculate the difference between the shift start time and end time in minutes and convert it to readable format as following:
DECLARE #StartTime datetime = '08:00'
DECLARE #EndTime datetime = '10:47'
DECLARE #durMinutes int
DECLARE #duration nvarchar(5)
SET #durMinutes = DATEDIFF(MINUTE, #StartTime, #EndTime)
SET #duration =
(SELECT RIGHT('00' + CAST((#durMinutes / 60) AS VARCHAR(2)),2) + ':' +
RIGHT('00' + CAST((#durMinutes % 60) AS VARCHAR(2)), 2))
SELECT #duration
The result : 02:47
two hours and 47 minutes

select DATEDIFF(MINUTE, '0:00:00', '00:02:08')
results in :- 2
select DATEDIFF(SECOND, '0:00:00', '00:02:08')
results in :- 128
Using seconds gives a better answer.
So I think the answer can be
SELECT
EmployeeId
, seconds_worked = SUM (DATEDIFF (SECOND, '0:00:00', WrkHrs))
FROM
tbl_employee
GROUP BY
EmployeeId;

DECLARE #Tab TABLE
(
data CHAR(5)
)
INSERT #Tab
SELECT '25:30' UNION ALL
SELECT '31:45' UNION ALL
SELECT '16:00'
SELECT STUFF(CONVERT(CHAR(8), DATEADD(SECOND, theHours + theMinutes,
'19000101'), 8), 1, 2, CAST((theHours + theMinutes) / 3600 AS VARCHAR(12)))
FROM (
SELECT ABS(SUM(CASE CHARINDEX(':', data) WHEN 0 THEN 0 ELSE 3600 *
LEFT(data, CHARINDEX(':', data) - 1) END)) AS theHours,
ABS(SUM(CASE CHARINDEX(':', data) WHEN 0 THEN 0 ELSE 60 *
SUBSTRING(data, CHARINDEX(':', data) + 1, 2) END)) AS theMinutes
FROM #Tab
) AS d

For MS SQL Server, when your WorkingTime is stored as a time, or a varchar in order to sum it up you should consider that:
1) Time format is not supporting sum, so you need to parse it
2) 23:59:59.9999999 is the maximum value for the time.
So, the code that will work to get you the total number of WorkingHours:WorkingMinutes:WorkingSeconds would be the following:
SELECT
CAST(FORMAT((SUM((DATEPART("ss",WorkingTime) + DATEPART("mi",WorkingTime) * 60 + DATEPART("hh",WorkingTime) * 3600)) / 3600),'00') as varchar(max)) + ':' +
CAST(FORMAT((SUM((DATEPART("ss",WorkingTime) + DATEPART("mi",WorkingTime) * 60 + DATEPART("hh",WorkingTime) * 3600)) % 3600 / 60),'00') as varchar(max)) + ':' +
CAST(FORMAT((SUM((DATEPART("ss",WorkingTime) + DATEPART("mi",WorkingTime) * 60 + DATEPART("hh",WorkingTime) * 3600)) % 3600 % 60),'00') as varchar(max)) as WorkingTimeSum
FROM TableName

It must be as simple as that.
Steps
convert time to seconds
sum the RESULT
convert the sum to time
Eg:
take a case you might want to sum the following time:
| present_hours |
|-----------------|
| 00:01:20.000000 |
|-----------------|
| 00:01:13.000000 |
|-----------------|
| 00:01:45.000000 |
|-----------------|
| 00:01:03.000000 |
|-----------------|
| 00:01:10.000000 |
|-----------------|
| 00:00:56.000000 |
SELECT SEC_TO_TIME(SUM(TIME_TO_SEC(present_hours))) as total_present_hours FROM time_booking;