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Adding Time in HH:MM Format - Useful SQL Query

, 11 Feb 2012 CPOL
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HH:MM Time format addition
In one of our projects related to employee shift management, the shift details are captured and total hours worked per day is stored in HH:MM format. A new reporting requirement is that we need to display the total hours worked per week in HH:MM format. Rather than retrieving the data in HH:MM format, splitting and adding, we wrote a query which adds and retrieves the total hours in HH:MM format.
A simplified version in the script format is given below; It adds the time duration stored in HH:MM format;


timeduration varchar(25)
INSERT INTO mytable VALUES ('05:30')
INSERT INTO mytable values ('05:33')
INSERT INTO mytable values ('04:33')
select * from mytable
select CAST
(SUM (datepart(hh, convert (varchar, timeduration, 108))) +
(sum(datepart(mi, convert (varchar, timeduration, 108)))/60) ) AS VARCHAR(2)
+ ':' +
sum(datepart(mi, convert (varchar, timeduration, 108))) - 60 * (sum(datepart(mi, convert (varchar, timeduration, 108)))/60)
 as VARCHAR(2))
 from mytable



This article, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)


About the Author

Jobless Creature
Software Developer (Senior) TATA Communications
India India
I have a total experience of around 5 years out of which 4 years in MS technologies. I have a passion towards coding.

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Comments and Discussions

QuestionMM addition has one small problem Pin
srikrishnathanthri28-Jul-15 2:24
membersrikrishnathanthri28-Jul-15 2:24 
Questionsyntax error Pin
Member 1048265122-Dec-13 18:12
memberMember 1048265122-Dec-13 18:12 
AnswerRe: syntax error Pin
Jobless Creature22-Dec-13 19:28
memberJobless Creature22-Dec-13 19:28 
GeneralReason for my vote of 4 NICE Pin
Sushil Kumar Purohit18-Feb-12 0:55
memberSushil Kumar Purohit18-Feb-12 0:55 
GeneralReason for my vote of 5 Excellent manipulation of time strin... Pin
cbragdon13-Jun-11 13:41
membercbragdon13-Jun-11 13:41 

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