Question

Sql 数据库原理作业有不会的吗？

欢迎咨询解决，计算机编程语言类都可以

Answer 1

同学要好好学习哦!
CREATE TABLE [dbo].[书店表] (
[书店编号] [nvarchar] (6) COLLATE Chinese_PRC_CI_AS NOT NULL ,
[店名] [nvarchar] (30) COLLATE Chinese_PRC_CI_AS NOT NULL ,
[电话] [char] (8) COLLATE Chinese_PRC_CI_AS NULL ,
[地址] [char] (40) COLLATE Chinese_PRC_CI_AS NULL ,
[邮政编码] [char] (6) COLLATE Chinese_PRC_CI_AS NULL
) ON [PRIMARY]
GO
CREATE TABLE [dbo].[图书表] (
[书号] [nvarchar] (6) COLLATE Chinese_PRC_CI_AS NOT NULL ,
[书名] [nvarchar] (30) COLLATE Chinese_PRC_CI_AS NOT NULL ,
[第一作者] [char] (10) COLLATE Chinese_PRC_CI_AS NOT NULL ,
[出版日期] [smalldatetime] NULL ,
[价格] [numeric](4, 1) NULL
) ON [PRIMARY]
GO
CREATE TABLE [dbo].[图书销售表] (
[书号] [nvarchar] (6) COLLATE Chinese_PRC_CI_AS NOT NULL ,
[书店编号] [nvarchar] (6) COLLATE Chinese_PRC_CI_AS NOT NULL ,
[销售日期] [smalldatetime] NOT NULL ,
[销售数量] [smallint] NULL
) ON [PRIMARY]
GO
ALTER TABLE [dbo].[书店表] WITH NOCHECK ADD
CONSTRAINT [PK_书店表] PRIMARY KEY CLUSTERED
(
[书店编号]
) ON [PRIMARY]
GO
ALTER TABLE [dbo].[图书表] WITH NOCHECK ADD
CONSTRAINT [PK_图书表] PRIMARY KEY CLUSTERED
(
[书号]
) ON [PRIMARY]
GO
ALTER TABLE [dbo].[图书销售表] WITH NOCHECK ADD
CONSTRAINT [PK_图书销售表] PRIMARY KEY CLUSTERED
(
[书号],
[书店编号],
[销售日期]
) ON [PRIMARY]
GO