foreign_key.result
上传用户:romrleung
上传日期:2022-05-23
资源大小:18897k
文件大小:1k
- drop table if exists t1;
- create table t1 (
- a int not null references t2,
- b int not null references t2 (c),
- primary key (a,b),
- foreign key (a) references t3 match full,
- foreign key (a) references t3 match partial,
- foreign key (a,b) references t3 (c,d) on delete no action
- on update no action,
- foreign key (a,b) references t3 (c,d) on update cascade,
- foreign key (a,b) references t3 (c,d) on delete set default,
- foreign key (a,b) references t3 (c,d) on update set null);
- create index a on t1 (a);
- create unique index b on t1 (a,b);
- drop table t1;