Question

How to convert seconds(int) into HH:MM:SS format in SQL Server?

e.g. 90 should output => 00:01:30

UPDATE

I have two dates START_DATE AND ENDDATE.

I want difference of these dates

Also finally I want to sum up these differences in HH:MM:SS format

FIDDLE: http://sqlfiddle.com/#!3/39c2b/1/0

Answer 1

declare @Seconds int;
set @Seconds = 90;
select replace(str(@Seconds/3600,len(ltrim(@Seconds/3600))+
abs(sign(@Seconds/359999)-1)) + ':' + str((@Seconds/60)%60,2)+
':' + str(@Seconds%60,2),' ','0')