Question

我将向您展示如何在EF core中使用视图。我们有老师和系课程。

教师班

public class Teacher
{

    public int TeacherId { get; set; }
    public string FullName  { get; set; }
    public int DepartmentId { get; set; }
    public  Department Department { get; set; }
}

部门课程

 public class Department
{
    public int DepartmentId { get; set; }
    public string DepartmentName { get; set; }
    public  List<Teacher> Teachers=>new List<Teacher>();
}

现在我们必须在Sql服务器中创建一个视图

SelectNameAndDpartment视图

    Create VIEW SelectNameAndDpartment AS SELECT FullName, DepartmentName FROM Departments as d INNER JOIN Teachers as t ON d.DepartmentId = t.DepartmentId GO

然后我们要创建另一个类并在相关类中获取属性

  public  class TeacherService
{

    public string FullName { get; set; }
    public string DepartmentName { get; set; }
}

现在，我们在 Dbcontext 类

中使用 dbQuery 属性

但是，属性名称必须与SQL Server中的视图名称相同，并且列名称与类属性相同

        public DbQuery<TeacherService> SelectNameAndDepartment { get; set; }

现在您可以使用它并检索数据。

在Entity Framework Core 2.2中在Tsql中使用视图

0 个答案: