摘要:
create table school( id number primary key , schoolName varchar2(20) not null , address varchar2(50) );create table teacher( id number primary key , teacherName varchar2(20) not null , sex varchar(2) , schoolId number , constraint fk_t_s_id foreign key(schoolId) references school(id)); 阅读全文
posted @ 2012-03-02 17:36
HisCoder
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