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一、ER图
二、ER图转表格
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三、sql server代码
USE [mqj2017270399]
GO
/****** Object: Table [dbo].[收银员] Script Date: 10/30/2018 20:08:43 ******/
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
SET ANSI_PADDING ON
GO
CREATE TABLE [dbo].[收银员](
[id] [varchar](20) NULL,
[name] [varchar](50) NULL,
[password] [varchar](50) NULL,
[phone] [varchar](25) NULL
) ON [PRIMARY]
GO
SET ANSI_PADDING OFF
GO
/****** Object: Table [dbo].[商品] Script Date: 10/30/2018 20:08:43 ******/
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
SET ANSI_PADDING ON
GO
CREATE TABLE [dbo].[商品](
[id] [varchar](20) NULL,
[name] [varchar](50) NULL
) ON [PRIMARY]
GO
SET ANSI_PADDING OFF
GO
/****** Object: Table [dbo].[库管员] Script Date: 10/30/2018 20:08:43 ******/
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
SET ANSI_PADDING ON
GO
CREATE TABLE [dbo].[库管员](
[id] [varchar](20) NULL,
[name] [varchar](50) NULL,
[password] [varchar](50) NULL,
[phone] [varchar](25) NULL
) ON [PRIMARY]
GO
SET ANSI_PADDING OFF
GO
/****** Object: Table [dbo].[供应商] Script Date: 10/30/2018 20:08:43 ******/
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
SET ANSI_PADDING ON
GO
CREATE TABLE [dbo].[供应商](
[name] [varchar](50) NULL,
[place] [varchar](100) NULL
) ON [PRIMARY]
GO
SET ANSI_PADDING OFF
GO
CREATE TABLE [dbo].[管理](
[time] [datetime] NULL,
[product info] varchar NULL,
[role] varchar NOT NULL,
[number] varchar NULL,
CONSTRAINT [PK_管理] PRIMARY KEY CLUSTERED
(
[role] 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
CREATE TABLE [dbo].[销售](
[time] [datetime] NULL,
[role] varchar NOT NULL,
[productinfo] varchar NULL,
CONSTRAINT [PK_销售] PRIMARY KEY CLUSTERED
(
[role] 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
