c# - Compare multi rows with a row in SQL Server 2008 -


i have asp.net c# project, study case, "a university website"

i have table called agenda , contain 9 columns

[agendaid]   uniqueidentifier [matirelid] [instructorid] [classid] [addeddate] [semester] [starttime] [endtime] [dayschedule]

and shows material available, instructor, in days, in time start , end, in class, in same semester.

what need: when add new row, should check if overlapping of existing row. if have overlapping , give me error.

ps: instructorid, matirelid , classid foreign keys other tables.

prefer make in stored procedure in sql server 2008.

kindly & best regards

assuming all columns have match duplicate - you'd use this:

create procedure dbo.insertnewrow      @agendaid      uniqueidentifier.,     @matirelid     int,   -- did not mention *types* columns have - adapt needed!     @instructorid  int,     @classid       int,     @addeddate     datetime,     @semester      int     @starttime     time(7),     @endtime       time(7),     @dayschedule   int begin    if exists (select * dbo.agenda                matirelid = @matirelid                 , instructorid = @instructorid                 , classid = @classid                 , semester = @semester                 , starttime = @starttime                 , endtime = @endtime                 , dayschedule = @dayschedule)         raiserror .......         return     insert dbo.agenda(agendaid, matirelid, instructorid, classid,                            addeddate, semester, starttime, endtime, dayschedule)    values(@agendaid, @matirelid, @instructorid, @classid,            @addeddate, @semester, @starttime, @endtime, @dayschedule) end

read the excellent msdn documentation learn how call raiserror cause error thrown stored procedure!


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