【文件属性】：
文件名称：简单的sql语句
文件大小：324B
文件格式：TXT
更新时间：2018-09-29 05:38:42
sql
create table CUSTOMERS
(
ID bigint not null,
NAME varchar(50),
primary key (ID)
);
create table ORDERS
(
ID bigint not null,
ORDER_NUMBER varchar(15),
CUSTOMER_ID bigint not null,
primary key (ID)
);
create table categories(
ID biging not null,
NAME varchar(15),
CATEGORY_ID bigint,
primary key (ID)
);