oracle 创建表外键约束

table usertable( id int primary key, username varchar(32) not null, birthday date, sex char(1), address varchar(256) );

create table orders(
       id int primary key,
       user_id int not null,
       numberid varchar(32) not null,
       createtime date,
       note varchar(100),
       constraint fk_orders foreign key (user_id) references usertable(id)
);

oracle 创建表外键约束

标签：date time user ble logs for constrain birt 约束

oracle 创建表 外键约束

oracle 创建表外键约束