sql-server-2008 R2-split-time-intervals-given-by-starttime-endtime-at-selected-point -


i have table has following data

create table #tempstudentschedulingrecord( seq_id int identity(1,1),     student_id int ,     periodnumber int ,     cpstarttime datetime ,     cpendtime datetime ,     dateitem datetime ,     firstsegmentendtime datetime,     secondsegmentendtime datetime )

now

insert #tempstudentschedulingrecord     values(2730,1,'1900-01-01 07:25:00.000','1900-01-01 08:20:00.000','2010-10-05 00:00:00.000','2015-05-27 09:45:00.000','2015-05-27 16:00:00.000')  insert #tempstudentschedulingrecord values(2730,1,'1900-01-01 08:25:00.000','1900-01-01 10:00:00.000','2010-10-05 00:00:00.000','2015-05-27 09:45:00.000','2015-05-27 16:00:00.000')  insert #tempstudentschedulingrecord values(2730,1,'1900-01-01 10:05:00.000','1900-01-01 11:35:00.000','2010-10-05 00:00:00.000','2015-05-27 09:45:00.000','2015-05-27 16:00:00.000')

now here firstsegmenttime same in rows. want find total minutes scheduled before first segment end , classes included in first segment. find the total minutes scheduled between first segment end time , second segment end time , classes included in first segment.

here period 2 resides both segments.. how can calculate total minutes scheduled before first segment , second segment.

desired output is

student period  cpstarttime         cpendtime           dateitem            fset                sset 2730    1       01/01/00 08:25   01/01/00 10:00   10/05/10 12:00   05/27/15 09:45   05/27/15 04:00 pm 2730    2       01/01/00 08:25   05/27/15 09:45   10/05/10 12:00   05/27/15 09:45   05/27/15 04:00 pm 2730    2       05/27/15 09:45   01/01/00 10:00   10/05/10 12:00   05/27/15 09:45   05/27/15 04:00 pm 2730    3       01/01/00 10:05   01/01/00 11:35   10/05/10 12:00   05/27/15 09:45   05/27/15 04:00 pm


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