create table #SrList(SrNo char(20),dt datetime )
alter table #SrList add constraint chk_dt check(dt>='1999-1-1' and dt<='2008-8-8')
insert into #SrList values('qq','2007-7-7')
insert into #SrList values('qq','2009-7-7')
select * from #SrList
drop table #SrList