asp.net - windows service for data insertion -


i have created windows service data-insertion.time interval 1 min.after 1 min, data insert table.data inserted table @ multiple time.i don't want that,only 1 time.how that?may need check in database wether entry there or nor if not add.

you can use query before inserting data. 

if exists(select * dbo.yourtable name = @name)  return

-- here, after check, insert might want create unique index on name column make sure no 2 rows same value exist:

create unique nonclustered index uix_name on dbo.yourtable(name)

hope you.


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