create table Studentinf (
   num   number(20),
   Name  varchar2(20),
   sex    varchar2(20),
   nation    varchar2(20),
   classname    varchar2(20),
   bathdate varchar2(20),
   Address varchar2(20),
   primary key  (num)
);

insert into Studentinf values('2001186214','宇明','男','漢','計(jì)科1012','1982.10','興寧');
insert into Studentinf values('2001186213','linus','男','漢','計(jì)科1012','1982.10', '興寧');