1 use book;
 2 
 3 create table t_order(
 4     `order_id` varchar(50) primary key,
 5     `create_time` datetime,
 6     `price` decimal(11,2),
 7     `status` int,
 8     `user_id` int,
 9     foreign key(`user_id`) references t_user(`id`)
10 );
11 
12 
13 create table t_order_item(
14     `id` int primary key auto_increment,
15     `name` varchar(100),
16     `count` int,
17     `price` decimal(11,2),
18     `total_price` decimal(11,2),
19     `order_id` varchar(50),
20      foreign key(`order_id`) references t_order(`order_id`)
21 );