一般数据库是最好不要带用三角星之类的符号,你如何要做实现那种效果的话,最好和视图查出数据转换成三角星之类的符号,我想你是在做类似论坛  的数据操作,我也做过,这是我以前项目中用过的
create view bbsUser_view as
select 昵称=Uname,星级=case
                    when Upoint<10 then ''
                    when Upoint between 10 and 101 then '★'
                    when Upoint between 102 and 501 then '★★'
                    when Upoint between 502 and 1001 then '★★★'
                    when Upoint between 1002 and 2001 then '★★★★'
                    when Upoint between 2002 and 5001 then '★★★★★'
                    else '★★★★★★'
               end
     ,积分=Upoint from bbsuser
go