score.txt

来自「oracle操作基础基础基础基础基础基础基础基础基础基础基础基础」· 文本 代码 · 共 7 行

create table score(
   sno varchar2(5) references student(sno)  on delete cascade,
   cno varchar2(4) references course(con) on delete cascade,
   score number(5,2),
   primary key(sno,cno)
)
/