1.ER图
2.ER图转表格
USE [lj]
GO
/****** Object: Table [dbo].[收银员] Script Date: 11/04/2018 18:52:57 ******/
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
SET ANSI_PADDING ON
GO
CREATE TABLE [dbo].[收银员](
[工号] [int] NOT NULL,
[姓名] [varchar](20) NULL,
[密码] [varchar](20) NULL,
[电话] [varchar](20) NULL,
CONSTRAINT [PK_收银员] PRIMARY KEY CLUSTERED
(
[工号] ASC
)WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON) ON [PRIMARY]
) ON [PRIMARY]
GO
SET ANSI_PADDING OFF
GO
/****** Object: Table [dbo].[商品] Script Date: 11/04/2018 18:52:57 ******/
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
SET ANSI_PADDING ON
GO
CREATE TABLE [dbo].[商品](
[商品号] [varchar](20) NOT NULL,
[商品名称] [varchar](20) NULL,
[价格] [int] NULL,
CONSTRAINT [PK_商品表] PRIMARY KEY CLUSTERED
(
[商品号] ASC
)WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON) ON [PRIMARY]
) ON [PRIMARY]
GO
SET ANSI_PADDING OFF
GO
/****** Object: Table [dbo].[库管员] Script Date: 11/04/2018 18:52:57 ******/
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
SET ANSI_PADDING ON
GO
CREATE TABLE [dbo].[库管员](
[工号] [int] NOT NULL,
[姓名] [varchar](20) NULL,
[密码] [varchar](20) NULL,
[电话] [varchar](20) NULL,
CONSTRAINT [PK_库管员] PRIMARY KEY CLUSTERED
(
[工号] ASC
)WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON) ON [PRIMARY]
) ON [PRIMARY]
GO
SET ANSI_PADDING OFF
GO
/****** Object: Table [dbo].[供货商] Script Date: 11/04/2018 18:52:57 ******/
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
SET ANSI_PADDING ON
GO
CREATE TABLE [dbo].[供货商](
[代码] [int] NOT NULL,
[名称] [varchar](20) NULL,
[地点] [varchar](20) NULL,
[联系人] [varchar](20) NULL,
[电话] [varchar](20) NULL,
CONSTRAINT [PK_供货商] PRIMARY KEY CLUSTERED
(
[代码] ASC
)WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON) ON [PRIMARY]
) ON [PRIMARY]
GO
SET ANSI_PADDING OFF
GO