创建实体数据模型（EF基础系列5）

时间：2015-09-12 16:01:14 阅读：193 评论：0 收藏：0 [点我收藏+]

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现在我要来为上面一节末尾给出的数据库（SchoolDB）创建实体数据模型；

SchoolDB数据库的脚本我已经写好了，如下：

USE master
GO 
IF EXISTS(SELECT * FROM sys.sysdatabases WHERE name=‘SchoolDB‘)
DROP DATABASE SchoolDB;
GO 
CREATE DATABASE SchoolDB
GO 
USE SchoolDB;
GO 

--创建Standard表
IF EXISTS (SELECT * FROM sysobjects WHERE name=‘Standard‘)
DROP TABLE [Standard];
GO 

CREATE TABLE  [Standard]
(
StandardID INT PRIMARY KEY ,
StandardName NVARCHAR(50),
[Description] NVARCHAR(250)
);
 
GO 

--创建Student表
IF EXISTS (SELECT * FROM sysobjects WHERE name=‘Student‘)
DROP TABLE Student;
GO 
CREATE TABLE  Student
(
StudentID INT PRIMARY KEY,
StudentName NVARCHAR(100) NOT NULL,
StandardID INT  REFERENCES [Standard](StandardID),
[RowVersion] NVARCHAR(50)

);

GO 
--创建StudentAddress表
IF EXISTS (SELECT * FROM sysobjects WHERE name=‘StudentAddress‘)
DROP TABLE StudentAddress;
GO 
CREATE TABLE  StudentAddress
(
StudentID INT PRIMARY KEY,
Address1 NVARCHAR(100) ,
Address2 NVARCHAR(100), 
City NVARCHAR(100),
[State] NVARCHAR(100)
);

GO 
--创建Teacher表
IF EXISTS (SELECT * FROM sysobjects WHERE name=‘Teacher‘)
DROP TABLE Teacher;
GO 
CREATE TABLE  Teacher
(
TeacherID INT PRIMARY KEY ,
TeacherName NVARCHAR(50),
StandardID INT  REFERENCES [Standard](StandardID),
TeacherType NVARCHAR (100)

);
GO 

--创建Course表
IF EXISTS (SELECT * FROM sysobjects WHERE name=‘Course‘)
DROP TABLE Course;
GO 
CREATE TABLE  Course
(
CourseID INT PRIMARY KEY ,
CourseName NVARCHAR(50),
Location NVARCHAR(500),
TeacherID INT REFERENCES dbo.Teacher(TeacherID)

);

GO 

--创建StudentCourse表
IF EXISTS (SELECT * FROM sysobjects WHERE name=‘StudentCourse‘)
DROP TABLE StudentCourse;
GO 
CREATE TABLE  StudentCourse
(
StudentID INT ,
CourseID INT ,
CONSTRAINT StudentID_CourseID PRIMARY KEY(StudentID,CourseID)
);

GO