SqlServer高级程序员必知必会关联基础查询-典型详情案例-订单表

   

--1 订单表
 create  table dingdan(
 ID int identity(1,1),
 order_money decimal(18,2) null, --订单金额
 status bit null, --状态设置
 DDID  int  null,--订单ID
 strdemo varchar(900),
 Hid int not null,-- 会员信息表主键ID的关联字段
 Tid int not null,--会员类型表主键ID的关联字段 . 没设置，自增，只能手动输入
 CreateID int  null,
 CreateTime DateTime  null,
 primary key(ID)
 );
 go

 select  * from dingdan; 
 --订单汇总 
 select count(*) from dingdan;

 insert into dingdan(order_money,status,Hid,Tid,strdemo)values(1111,0,1,1,'LH字符串demo');
 
 insert into dingdan(order_money,status,Hid,Tid,strdemo)values(2111,1,10,4,'字符串demo'); 
 insert into dingdan(order_money,status,Hid,Tid,strdemo)values(3111,0,11,5,'字符串demo'); 
 insert into dingdan(order_money,status,Hid,Tid,strdemo)values(5111,1,12,6,'字符串demo'); 
 insert into dingdan(order_money,status,Hid,Tid,strdemo)values(6111,0,13,7,'字符串');
  insert into dingdan(order_money,status,Hid,Tid,strdemo)val