alter table xsa_xsjbqk
add
constraint pk_1 primary key (id)
alter table xsa_xsgkcj
add
constraint fk_1 foreign key (xid) references xsa_xsjbqk (id) on delete cascade on update cascade
(商品编号 varchar(20) not null PRIMARY KEY CLUSTERED REFERENCES 主表 (编号) ON DELETE CASCADE ON UPDATE CASCADE ,
商品名称 varchar(20) ,
select * from xsa_xsjbqk
select * from xsa_xsgkcj
insert