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摘要： create table student(sno int indetity(1,1) primary key,sname nvachar(10),[money] nvachar(10),departno int)create table sxx(departno int primary key,departname nvachar(10))create table sc(sno int,cname nvarchar(10),score nvarchar(10)primary key(sno,cname) //设置联合主键)alter student1 add constraint fk_stu 阅读全文