Modelo School

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Este tema ofrece información sobre el modelo conceptual, el modelo de almacenamiento y la asignación para la base de datos de ejemplo School. Para crear la base de datos School, vea Crear la base de datos de ejemplo School.

El modelo School se utiliza en código de ejemplo de Entity Framework y en la documentación de las Herramientas de Entity Data Model. La información sobre el modelo conceptual, el modelo de almacenamiento y la asignación se expresa en el lenguaje de definición de esquemas conceptuales (CSDL), el lenguaje de definición de esquemas de almacenamiento (SSDL) y el lenguaje de especificación de asignaciones (MSL). Se recomienda crear el modelo de almacenamiento, el modelo conceptual y las asignaciones mediante el Entity Data Model Wizard o la herramienta de línea de comandos edmgen.exe.

Bb896300.note(es-es,VS.100).gifNota:
Para obtener información sobre cómo utilizar Entity Data Model Designer para extender el modelo School, vea ADO.NET Entity Data Model Designer Scenarios.

Definiciones de modelo y asignaciones

El siguiente código incluye el contenido conceptual, de almacenamiento y de asignación del modelo School.

<!-- SSDL content -->
<edmx:StorageModels>
  <Schema Namespace="SchoolModel.Store" Alias="Self" Provider="System.Data.SqlClient" 
          ProviderManifestToken="2005" 
          xmlns:store="https://schemas.microsoft.com/ado/2007/12/edm/EntityStoreSchemaGenerator" 
          xmlns="https://schemas.microsoft.com/ado/2009/02/edm/ssdl">
    <EntityContainer Name="SchoolModelStoreContainer">
      <EntitySet Name="Course" EntityType="SchoolModel.Store.Course" 
                 store:Type="Tables" Schema="dbo" />
      <EntitySet Name="CourseInstructor" EntityType="SchoolModel.Store.CourseInstructor" 
                 store:Type="Tables" Schema="dbo" />
      <EntitySet Name="Department" EntityType="SchoolModel.Store.Department" 
                 store:Type="Tables" Schema="dbo" />
      <EntitySet Name="OfficeAssignment" EntityType="SchoolModel.Store.OfficeAssignment" 
                 store:Type="Tables" Schema="dbo" />
      <EntitySet Name="OnlineCourse" EntityType="SchoolModel.Store.OnlineCourse" 
                 store:Type="Tables" Schema="dbo" />
      <EntitySet Name="OnsiteCourse" EntityType="SchoolModel.Store.OnsiteCourse" 
                 store:Type="Tables" Schema="dbo" />
      <EntitySet Name="Person" EntityType="SchoolModel.Store.Person" 
                 store:Type="Tables" Schema="dbo" />
      <EntitySet Name="StudentGrade" EntityType="SchoolModel.Store.StudentGrade" 
                 store:Type="Tables" Schema="dbo" />
      <AssociationSet Name="FK_Course_Department" 
                      Association="SchoolModel.Store.FK_Course_Department">
        <End Role="Department" EntitySet="Department" />
        <End Role="Course" EntitySet="Course" />
      </AssociationSet>
      <AssociationSet Name="FK_CourseInstructor_Course" 
                      Association="SchoolModel.Store.FK_CourseInstructor_Course">
        <End Role="Course" EntitySet="Course" />
        <End Role="CourseInstructor" EntitySet="CourseInstructor" />
      </AssociationSet>
      <AssociationSet Name="FK_CourseInstructor_Person" 
                      Association="SchoolModel.Store.FK_CourseInstructor_Person">
        <End Role="Person" EntitySet="Person" />
        <End Role="CourseInstructor" EntitySet="CourseInstructor" />
      </AssociationSet>
      <AssociationSet Name="FK_OfficeAssignment_Person" 
                      Association="SchoolModel.Store.FK_OfficeAssignment_Person">
        <End Role="Person" EntitySet="Person" />
        <End Role="OfficeAssignment" EntitySet="OfficeAssignment" />
      </AssociationSet>
      <AssociationSet Name="FK_OnlineCourse_Course" 
                      Association="SchoolModel.Store.FK_OnlineCourse_Course">
        <End Role="Course" EntitySet="Course" />
        <End Role="OnlineCourse" EntitySet="OnlineCourse" />
      </AssociationSet>
      <AssociationSet Name="FK_OnsiteCourse_Course" 
                      Association="SchoolModel.Store.FK_OnsiteCourse_Course">
        <End Role="Course" EntitySet="Course" />
        <End Role="OnsiteCourse" EntitySet="OnsiteCourse" />
      </AssociationSet>
      <AssociationSet Name="FK_StudentGrade_Course" 
                      Association="SchoolModel.Store.FK_StudentGrade_Course">
        <End Role="Course" EntitySet="Course" />
        <End Role="StudentGrade" EntitySet="StudentGrade" />
      </AssociationSet>
      <AssociationSet Name="FK_StudentGrade_Student" 
                      Association="SchoolModel.Store.FK_StudentGrade_Student">
        <End Role="Person" EntitySet="Person" />
        <End Role="StudentGrade" EntitySet="StudentGrade" />
      </AssociationSet>
    </EntityContainer>
    <EntityType Name="Course">
      <Key>
        <PropertyRef Name="CourseID" />
      </Key>
      <Property Name="CourseID" Type="int" Nullable="false" />
      <Property Name="Title" Type="nvarchar" Nullable="false" MaxLength="100" />
      <Property Name="Credits" Type="int" Nullable="false" />
      <Property Name="DepartmentID" Type="int" Nullable="false" />
    </EntityType>
    <EntityType Name="CourseInstructor">
      <Key>
        <PropertyRef Name="CourseID" />
        <PropertyRef Name="PersonID" />
      </Key>
      <Property Name="CourseID" Type="int" Nullable="false" />
      <Property Name="PersonID" Type="int" Nullable="false" />
    </EntityType>
    <EntityType Name="Department">
      <Key>
        <PropertyRef Name="DepartmentID" />
      </Key>
      <Property Name="DepartmentID" Type="int" Nullable="false" />
      <Property Name="Name" Type="nvarchar" Nullable="false" MaxLength="50" />
      <Property Name="Budget" Type="money" Nullable="false" />
      <Property Name="StartDate" Type="datetime" Nullable="false" />
      <Property Name="Administrator" Type="int" />
    </EntityType>
    <EntityType Name="OfficeAssignment">
      <Key>
        <PropertyRef Name="InstructorID" />
      </Key>
      <Property Name="InstructorID" Type="int" Nullable="false" />
      <Property Name="Location" Type="nvarchar" Nullable="false" MaxLength="50" />
      <Property Name="Timestamp" Type="timestamp" Nullable="false" 
                StoreGeneratedPattern="Computed" />
    </EntityType>
    <EntityType Name="OnlineCourse">
      <Key>
        <PropertyRef Name="CourseID" />
      </Key>
      <Property Name="CourseID" Type="int" Nullable="false" />
      <Property Name="URL" Type="nvarchar" Nullable="false" MaxLength="100" />
    </EntityType>
    <EntityType Name="OnsiteCourse">
      <Key>
        <PropertyRef Name="CourseID" />
      </Key>
      <Property Name="CourseID" Type="int" Nullable="false" />
      <Property Name="Location" Type="nvarchar" Nullable="false" MaxLength="50" />
      <Property Name="Days" Type="nvarchar" Nullable="false" MaxLength="50" />
      <Property Name="Time" Type="smalldatetime" Nullable="false" />
    </EntityType>
    <EntityType Name="Person">
      <Key>
        <PropertyRef Name="PersonID" />
      </Key>
      <Property Name="PersonID" Type="int" Nullable="false" 
                StoreGeneratedPattern="Identity" />
      <Property Name="LastName" Type="nvarchar" Nullable="false" MaxLength="50" />
      <Property Name="FirstName" Type="nvarchar" Nullable="false" MaxLength="50" />
      <Property Name="HireDate" Type="datetime" />
      <Property Name="EnrollmentDate" Type="datetime" />
    </EntityType>
    <EntityType Name="StudentGrade">
      <Key>
        <PropertyRef Name="EnrollmentID" />
      </Key>
      <Property Name="EnrollmentID" Type="int" Nullable="false" 
                StoreGeneratedPattern="Identity" />
      <Property Name="CourseID" Type="int" Nullable="false" />
      <Property Name="StudentID" Type="int" Nullable="false" />
      <Property Name="Grade" Type="decimal" Precision="3" Scale="2" />
    </EntityType>
    <Association Name="FK_Course_Department">
      <End Role="Department" Type="SchoolModel.Store.Department" Multiplicity="1" />
      <End Role="Course" Type="SchoolModel.Store.Course" Multiplicity="*" />
      <ReferentialConstraint>
        <Principal Role="Department">
          <PropertyRef Name="DepartmentID" />
        </Principal>
        <Dependent Role="Course">
          <PropertyRef Name="DepartmentID" />
        </Dependent>
      </ReferentialConstraint>
    </Association>
    <Association Name="FK_CourseInstructor_Course">
      <End Role="Course" Type="SchoolModel.Store.Course" Multiplicity="1" />
      <End Role="CourseInstructor" Type="SchoolModel.Store.CourseInstructor" Multiplicity="*" />
      <ReferentialConstraint>
        <Principal Role="Course">
          <PropertyRef Name="CourseID" />
        </Principal>
        <Dependent Role="CourseInstructor">
          <PropertyRef Name="CourseID" />
        </Dependent>
      </ReferentialConstraint>
    </Association>
    <Association Name="FK_CourseInstructor_Person">
      <End Role="Person" Type="SchoolModel.Store.Person" Multiplicity="1" />
      <End Role="CourseInstructor" Type="SchoolModel.Store.CourseInstructor" Multiplicity="*" />
      <ReferentialConstraint>
        <Principal Role="Person">
          <PropertyRef Name="PersonID" />
        </Principal>
        <Dependent Role="CourseInstructor">
          <PropertyRef Name="PersonID" />
        </Dependent>
      </ReferentialConstraint>
    </Association>
    <Association Name="FK_OfficeAssignment_Person">
      <End Role="Person" Type="SchoolModel.Store.Person" Multiplicity="1" />
      <End Role="OfficeAssignment" Type="SchoolModel.Store.OfficeAssignment" Multiplicity="0..1" />
      <ReferentialConstraint>
        <Principal Role="Person">
          <PropertyRef Name="PersonID" />
        </Principal>
        <Dependent Role="OfficeAssignment">
          <PropertyRef Name="InstructorID" />
        </Dependent>
      </ReferentialConstraint>
    </Association>
    <Association Name="FK_OnlineCourse_Course">
      <End Role="Course" Type="SchoolModel.Store.Course" Multiplicity="1" />
      <End Role="OnlineCourse" Type="SchoolModel.Store.OnlineCourse" Multiplicity="0..1" />
      <ReferentialConstraint>
        <Principal Role="Course">
          <PropertyRef Name="CourseID" />
        </Principal>
        <Dependent Role="OnlineCourse">
          <PropertyRef Name="CourseID" />
        </Dependent>
      </ReferentialConstraint>
    </Association>
    <Association Name="FK_OnsiteCourse_Course">
      <End Role="Course" Type="SchoolModel.Store.Course" Multiplicity="1" />
      <End Role="OnsiteCourse" Type="SchoolModel.Store.OnsiteCourse" Multiplicity="0..1" />
      <ReferentialConstraint>
        <Principal Role="Course">
          <PropertyRef Name="CourseID" />
        </Principal>
        <Dependent Role="OnsiteCourse">
          <PropertyRef Name="CourseID" />
        </Dependent>
      </ReferentialConstraint>
    </Association>
    <Association Name="FK_StudentGrade_Course">
      <End Role="Course" Type="SchoolModel.Store.Course" Multiplicity="1" />
      <End Role="StudentGrade" Type="SchoolModel.Store.StudentGrade" Multiplicity="*" />
      <ReferentialConstraint>
        <Principal Role="Course">
          <PropertyRef Name="CourseID" />
        </Principal>
        <Dependent Role="StudentGrade">
          <PropertyRef Name="CourseID" />
        </Dependent>
      </ReferentialConstraint>
    </Association>
    <Association Name="FK_StudentGrade_Student">
      <End Role="Person" Type="SchoolModel.Store.Person" Multiplicity="1" />
      <End Role="StudentGrade" Type="SchoolModel.Store.StudentGrade" Multiplicity="*" />
      <ReferentialConstraint>
        <Principal Role="Person">
          <PropertyRef Name="PersonID" />
        </Principal>
        <Dependent Role="StudentGrade">
          <PropertyRef Name="StudentID" />
        </Dependent>
      </ReferentialConstraint>
    </Association>
    <Function Name="DeleteOfficeAssignment" Aggregate="false" BuiltIn="false" 
              NiladicFunction="false" IsComposable="false" 
              ParameterTypeSemantics="AllowImplicitConversion" Schema="dbo">
      <Parameter Name="InstructorID" Type="int" Mode="In" />
    </Function>
    <Function Name="DeletePerson" Aggregate="false" BuiltIn="false" 
              NiladicFunction="false" IsComposable="false" 
              ParameterTypeSemantics="AllowImplicitConversion" Schema="dbo">
      <Parameter Name="PersonID" Type="int" Mode="In" />
    </Function>
<Function Name="GetDepartmentName" Aggregate="false" BuiltIn="false" 
              NiladicFunction="false" IsComposable="false" 
              ParameterTypeSemantics="AllowImplicitConversion" Schema="dbo">
      <Parameter Name="ID" Type="int" Mode="In" />
      <Parameter Name="Name" Type="nvarchar" Mode="InOut" />
    </Function>
    <Function Name="GetStudentGrades" Aggregate="false" BuiltIn="false" 
              NiladicFunction="false" IsComposable="false" 
              ParameterTypeSemantics="AllowImplicitConversion" Schema="dbo">
      <Parameter Name="StudentID" Type="int" Mode="In" />
    </Function>
    <Function Name="InsertOfficeAssignment" Aggregate="false" BuiltIn="false" 
              NiladicFunction="false" IsComposable="false" 
              ParameterTypeSemantics="AllowImplicitConversion" Schema="dbo">
      <Parameter Name="InstructorID" Type="int" Mode="In" />
      <Parameter Name="Location" Type="nvarchar" Mode="In" />
    </Function>
    <Function Name="InsertPerson" Aggregate="false" BuiltIn="false" 
              NiladicFunction="false" IsComposable="false" 
              ParameterTypeSemantics="AllowImplicitConversion" Schema="dbo">
      <Parameter Name="LastName" Type="nvarchar" Mode="In" />
      <Parameter Name="FirstName" Type="nvarchar" Mode="In" />
      <Parameter Name="HireDate" Type="datetime" Mode="In" />
      <Parameter Name="EnrollmentDate" Type="datetime" Mode="In" />
    </Function>
    <Function Name="UpdateOfficeAssignment" Aggregate="false" BuiltIn="false" 
              NiladicFunction="false" IsComposable="false" 
              ParameterTypeSemantics="AllowImplicitConversion" Schema="dbo">
      <Parameter Name="InstructorID" Type="int" Mode="In" />
      <Parameter Name="Location" Type="nvarchar" Mode="In" />
      <Parameter Name="OrigTimestamp" Type="timestamp" Mode="In" />
    </Function>
    <Function Name="UpdatePerson" Aggregate="false" BuiltIn="false" 
              NiladicFunction="false" IsComposable="false" 
              ParameterTypeSemantics="AllowImplicitConversion" Schema="dbo">
      <Parameter Name="PersonID" Type="int" Mode="In" />
      <Parameter Name="LastName" Type="nvarchar" Mode="In" />
      <Parameter Name="FirstName" Type="nvarchar" Mode="In" />
      <Parameter Name="HireDate" Type="datetime" Mode="In" />
      <Parameter Name="EnrollmentDate" Type="datetime" Mode="In" />
    </Function>
  </Schema>
</edmx:StorageModels>
<!-- CSDL content -->
<edmx:ConceptualModels>
  <Schema Namespace="SchoolModel" Alias="Self" 
          xmlns:annotation="https://schemas.microsoft.com/ado/2009/02/edm/annotation" 
          xmlns="https://schemas.microsoft.com/ado/2008/09/edm">
    <EntityContainer Name="SchoolEntities">
      <EntitySet Name="Courses" EntityType="SchoolModel.Course" />
      <EntitySet Name="Departments" EntityType="SchoolModel.Department" />
      <EntitySet Name="OfficeAssignments" EntityType="SchoolModel.OfficeAssignment" />
      <EntitySet Name="OnlineCourses" EntityType="SchoolModel.OnlineCourse" />
      <EntitySet Name="OnsiteCourses" EntityType="SchoolModel.OnsiteCourse" />
      <EntitySet Name="People" EntityType="SchoolModel.Person" />
      <EntitySet Name="StudentGrades" EntityType="SchoolModel.StudentGrade" />
      <AssociationSet Name="FK_Course_Department" 
                      Association="SchoolModel.FK_Course_Department">
        <End Role="Department" EntitySet="Departments" />
        <End Role="Course" EntitySet="Courses" />
      </AssociationSet>
      <AssociationSet Name="FK_OnlineCourse_Course" 
                      Association="SchoolModel.FK_OnlineCourse_Course">
        <End Role="Course" EntitySet="Courses" />
        <End Role="OnlineCourse" EntitySet="OnlineCourses" />
      </AssociationSet>
      <AssociationSet Name="FK_OnsiteCourse_Course" 
                      Association="SchoolModel.FK_OnsiteCourse_Course">
        <End Role="Course" EntitySet="Courses" />
        <End Role="OnsiteCourse" EntitySet="OnsiteCourses" />
      </AssociationSet>
      <AssociationSet Name="FK_StudentGrade_Course" 
                      Association="SchoolModel.FK_StudentGrade_Course">
        <End Role="Course" EntitySet="Courses" />
        <End Role="StudentGrade" EntitySet="StudentGrades" />
      </AssociationSet>
      <AssociationSet Name="FK_OfficeAssignment_Person" 
                      Association="SchoolModel.FK_OfficeAssignment_Person">
        <End Role="Person" EntitySet="People" />
        <End Role="OfficeAssignment" EntitySet="OfficeAssignments" />
      </AssociationSet>
      <AssociationSet Name="FK_StudentGrade_Student" 
                      Association="SchoolModel.FK_StudentGrade_Student">
        <End Role="Person" EntitySet="People" />
        <End Role="StudentGrade" EntitySet="StudentGrades" />
      </AssociationSet>
      <AssociationSet Name="CourseInstructor" 
                      Association="SchoolModel.CourseInstructor">
        <End Role="Course" EntitySet="Courses" />
        <End Role="Person" EntitySet="People" />
      </AssociationSet>
    </EntityContainer>
    <EntityType Name="Course">
      <Key>
        <PropertyRef Name="CourseID" />
      </Key>
      <Property Name="CourseID" Type="Int32" Nullable="false" />
      <Property Name="Title" Type="String" Nullable="false" 
                MaxLength="100" Unicode="true" FixedLength="false" />
      <Property Name="Credits" Type="Int32" Nullable="false" />
      <Property Name="DepartmentID" Type="Int32" Nullable="false" />
      <NavigationProperty Name="Department" 
                          Relationship="SchoolModel.FK_Course_Department" 
                          FromRole="Course" ToRole="Department" />
      <NavigationProperty Name="OnlineCourse" 
                          Relationship="SchoolModel.FK_OnlineCourse_Course" 
                          FromRole="Course" ToRole="OnlineCourse" />
      <NavigationProperty Name="OnsiteCourse" 
                          Relationship="SchoolModel.FK_OnsiteCourse_Course" 
                          FromRole="Course" ToRole="OnsiteCourse" />
      <NavigationProperty Name="StudentGrades" 
                          Relationship="SchoolModel.FK_StudentGrade_Course" 
                          FromRole="Course" ToRole="StudentGrade" />
      <NavigationProperty Name="People" 
                          Relationship="SchoolModel.CourseInstructor" 
                          FromRole="Course" ToRole="Person" />
    </EntityType>
    <EntityType Name="Department">
      <Key>
        <PropertyRef Name="DepartmentID" />
      </Key>
      <Property Name="DepartmentID" Type="Int32" Nullable="false" />
      <Property Name="Name" Type="String" Nullable="false" MaxLength="50" 
                Unicode="true" FixedLength="false" />
      <Property Name="Budget" Type="Decimal" Nullable="false" Precision="19" Scale="4" />
      <Property Name="StartDate" Type="DateTime" Nullable="false" />
      <Property Name="Administrator" Type="Int32" />
      <NavigationProperty Name="Courses" 
                          Relationship="SchoolModel.FK_Course_Department" 
                          FromRole="Department" ToRole="Course" />
    </EntityType>
    <EntityType Name="OfficeAssignment">
      <Key>
        <PropertyRef Name="InstructorID" />
      </Key>
      <Property Name="InstructorID" Type="Int32" Nullable="false" />
      <Property Name="Location" Type="String" Nullable="false" MaxLength="50" 
                Unicode="true" FixedLength="false" />
      <Property Name="Timestamp" Type="Binary" Nullable="false" MaxLength="8" 
                FixedLength="true" annotation:StoreGeneratedPattern="Computed" />
      <NavigationProperty Name="Person" 
                          Relationship="SchoolModel.FK_OfficeAssignment_Person" 
                          FromRole="OfficeAssignment" ToRole="Person" />
    </EntityType>
    <EntityType Name="OnlineCourse">
      <Key>
        <PropertyRef Name="CourseID" />
      </Key>
      <Property Name="CourseID" Type="Int32" Nullable="false" />
      <Property Name="URL" Type="String" Nullable="false" MaxLength="100" 
                Unicode="true" FixedLength="false" />
      <NavigationProperty Name="Course" 
                          Relationship="SchoolModel.FK_OnlineCourse_Course" 
                          FromRole="OnlineCourse" ToRole="Course" />
    </EntityType>
    <EntityType Name="OnsiteCourse">
      <Key>
        <PropertyRef Name="CourseID" />
      </Key>
      <Property Name="CourseID" Type="Int32" Nullable="false" />
      <Property Name="Location" Type="String" Nullable="false" MaxLength="50" 
                Unicode="true" FixedLength="false" />
      <Property Name="Days" Type="String" Nullable="false" MaxLength="50" 
                Unicode="true" FixedLength="false" />
      <Property Name="Time" Type="DateTime" Nullable="false" />
      <NavigationProperty Name="Course" 
                          Relationship="SchoolModel.FK_OnsiteCourse_Course" 
                          FromRole="OnsiteCourse" ToRole="Course" />
    </EntityType>
    <EntityType Name="Person">
      <Key>
        <PropertyRef Name="PersonID" />
      </Key>
      <Property Name="PersonID" Type="Int32" Nullable="false" 
                annotation:StoreGeneratedPattern="Identity" />
      <Property Name="LastName" Type="String" Nullable="false" MaxLength="50" 
                Unicode="true" FixedLength="false" />
      <Property Name="FirstName" Type="String" Nullable="false" MaxLength="50" 
                Unicode="true" FixedLength="false" />
      <Property Name="HireDate" Type="DateTime" />
      <Property Name="EnrollmentDate" Type="DateTime" />
      <NavigationProperty Name="OfficeAssignment" 
                          Relationship="SchoolModel.FK_OfficeAssignment_Person" 
                          FromRole="Person" ToRole="OfficeAssignment" />
      <NavigationProperty Name="StudentGrades" 
                          Relationship="SchoolModel.FK_StudentGrade_Student" 
                          FromRole="Person" ToRole="StudentGrade" />
      <NavigationProperty Name="Courses" 
                          Relationship="SchoolModel.CourseInstructor" 
                          FromRole="Person" ToRole="Course" />
    </EntityType>
    <EntityType Name="StudentGrade">
      <Key>
        <PropertyRef Name="EnrollmentID" />
      </Key>
      <Property Name="EnrollmentID" Type="Int32" Nullable="false" 
                annotation:StoreGeneratedPattern="Identity" />
      <Property Name="CourseID" Type="Int32" Nullable="false" />
      <Property Name="StudentID" Type="Int32" Nullable="false" />
      <Property Name="Grade" Type="Decimal" Precision="3" Scale="2" />
      <NavigationProperty Name="Course" 
                          Relationship="SchoolModel.FK_StudentGrade_Course" 
                          FromRole="StudentGrade" ToRole="Course" />
      <NavigationProperty Name="Person" 
                          Relationship="SchoolModel.FK_StudentGrade_Student" 
                          FromRole="StudentGrade" ToRole="Person" />
    </EntityType>
    <Association Name="FK_Course_Department">
      <End Role="Department" Type="SchoolModel.Department" Multiplicity="1" />
      <End Role="Course" Type="SchoolModel.Course" Multiplicity="*" />
      <ReferentialConstraint>
        <Principal Role="Department">
          <PropertyRef Name="DepartmentID" />
        </Principal>
        <Dependent Role="Course">
          <PropertyRef Name="DepartmentID" />
        </Dependent>
      </ReferentialConstraint>
    </Association>
    <Association Name="FK_OnlineCourse_Course">
      <End Role="Course" Type="SchoolModel.Course" Multiplicity="1" />
      <End Role="OnlineCourse" Type="SchoolModel.OnlineCourse" Multiplicity="0..1" />
      <ReferentialConstraint>
        <Principal Role="Course">
          <PropertyRef Name="CourseID" />
        </Principal>
        <Dependent Role="OnlineCourse">
          <PropertyRef Name="CourseID" />
        </Dependent>
      </ReferentialConstraint>
    </Association>
    <Association Name="FK_OnsiteCourse_Course">
      <End Role="Course" Type="SchoolModel.Course" Multiplicity="1" />
      <End Role="OnsiteCourse" Type="SchoolModel.OnsiteCourse" Multiplicity="0..1" />
      <ReferentialConstraint>
        <Principal Role="Course">
          <PropertyRef Name="CourseID" />
        </Principal>
        <Dependent Role="OnsiteCourse">
          <PropertyRef Name="CourseID" />
        </Dependent>
      </ReferentialConstraint>
    </Association>
    <Association Name="FK_StudentGrade_Course">
      <End Role="Course" Type="SchoolModel.Course" Multiplicity="1" />
      <End Role="StudentGrade" Type="SchoolModel.StudentGrade" Multiplicity="*" />
      <ReferentialConstraint>
        <Principal Role="Course">
          <PropertyRef Name="CourseID" />
        </Principal>
        <Dependent Role="StudentGrade">
          <PropertyRef Name="CourseID" />
        </Dependent>
      </ReferentialConstraint>
    </Association>
    <Association Name="FK_OfficeAssignment_Person">
      <End Role="Person" Type="SchoolModel.Person" Multiplicity="1" />
      <End Role="OfficeAssignment" Type="SchoolModel.OfficeAssignment" Multiplicity="0..1" />
      <ReferentialConstraint>
        <Principal Role="Person">
          <PropertyRef Name="PersonID" />
        </Principal>
        <Dependent Role="OfficeAssignment">
          <PropertyRef Name="InstructorID" />
        </Dependent>
      </ReferentialConstraint>
    </Association>
    <Association Name="FK_StudentGrade_Student">
      <End Role="Person" Type="SchoolModel.Person" Multiplicity="1" />
      <End Role="StudentGrade" Type="SchoolModel.StudentGrade" Multiplicity="*" />
      <ReferentialConstraint>
        <Principal Role="Person">
          <PropertyRef Name="PersonID" />
        </Principal>
        <Dependent Role="StudentGrade">
          <PropertyRef Name="StudentID" />
        </Dependent>
      </ReferentialConstraint>
    </Association>
    <Association Name="CourseInstructor">
      <End Role="Course" Type="SchoolModel.Course" Multiplicity="*" />
      <End Role="Person" Type="SchoolModel.Person" Multiplicity="*" />
    </Association>
  </Schema>
</edmx:ConceptualModels>
<!-- C-S mapping content -->
<edmx:Mappings>
  <Mapping Space="C-S" xmlns="https://schemas.microsoft.com/ado/2008/09/mapping/cs">
    <EntityContainerMapping StorageEntityContainer="SchoolModelStoreContainer" 
                            CdmEntityContainer="SchoolEntities">
      <EntitySetMapping Name="Courses">
        <EntityTypeMapping TypeName="SchoolModel.Course">
          <MappingFragment StoreEntitySet="Course">
            <ScalarProperty Name="CourseID" ColumnName="CourseID" />
            <ScalarProperty Name="Title" ColumnName="Title" />
            <ScalarProperty Name="Credits" ColumnName="Credits" />
            <ScalarProperty Name="DepartmentID" ColumnName="DepartmentID" />
          </MappingFragment>
        </EntityTypeMapping>
      </EntitySetMapping>
      <EntitySetMapping Name="Departments">
        <EntityTypeMapping TypeName="SchoolModel.Department">
          <MappingFragment StoreEntitySet="Department">
            <ScalarProperty Name="DepartmentID" ColumnName="DepartmentID" />
            <ScalarProperty Name="Name" ColumnName="Name" />
            <ScalarProperty Name="Budget" ColumnName="Budget" />
            <ScalarProperty Name="StartDate" ColumnName="StartDate" />
            <ScalarProperty Name="Administrator" ColumnName="Administrator" />
          </MappingFragment>
        </EntityTypeMapping>
      </EntitySetMapping>
      <EntitySetMapping Name="OfficeAssignments">
        <EntityTypeMapping TypeName="SchoolModel.OfficeAssignment">
          <MappingFragment StoreEntitySet="OfficeAssignment">
            <ScalarProperty Name="InstructorID" ColumnName="InstructorID" />
            <ScalarProperty Name="Location" ColumnName="Location" />
            <ScalarProperty Name="Timestamp" ColumnName="Timestamp" />
          </MappingFragment>
        </EntityTypeMapping>
      </EntitySetMapping>
      <EntitySetMapping Name="OnlineCourses">
        <EntityTypeMapping TypeName="SchoolModel.OnlineCourse">
          <MappingFragment StoreEntitySet="OnlineCourse">
            <ScalarProperty Name="CourseID" ColumnName="CourseID" />
            <ScalarProperty Name="URL" ColumnName="URL" />
          </MappingFragment>
        </EntityTypeMapping>
      </EntitySetMapping>
      <EntitySetMapping Name="OnsiteCourses">
        <EntityTypeMapping TypeName="SchoolModel.OnsiteCourse">
          <MappingFragment StoreEntitySet="OnsiteCourse">
            <ScalarProperty Name="CourseID" ColumnName="CourseID" />
            <ScalarProperty Name="Location" ColumnName="Location" />
            <ScalarProperty Name="Days" ColumnName="Days" />
            <ScalarProperty Name="Time" ColumnName="Time" />
          </MappingFragment>
        </EntityTypeMapping>
      </EntitySetMapping>
      <EntitySetMapping Name="People">
        <EntityTypeMapping TypeName="SchoolModel.Person">
          <MappingFragment StoreEntitySet="Person">
            <ScalarProperty Name="PersonID" ColumnName="PersonID" />
            <ScalarProperty Name="LastName" ColumnName="LastName" />
            <ScalarProperty Name="FirstName" ColumnName="FirstName" />
            <ScalarProperty Name="HireDate" ColumnName="HireDate" />
            <ScalarProperty Name="EnrollmentDate" ColumnName="EnrollmentDate" />
          </MappingFragment>
        </EntityTypeMapping>
      </EntitySetMapping>
      <EntitySetMapping Name="StudentGrades">
        <EntityTypeMapping TypeName="SchoolModel.StudentGrade">
          <MappingFragment StoreEntitySet="StudentGrade">
            <ScalarProperty Name="EnrollmentID" ColumnName="EnrollmentID" />
            <ScalarProperty Name="CourseID" ColumnName="CourseID" />
            <ScalarProperty Name="StudentID" ColumnName="StudentID" />
            <ScalarProperty Name="Grade" ColumnName="Grade" />
          </MappingFragment>
        </EntityTypeMapping>
      </EntitySetMapping>
      <AssociationSetMapping Name="CourseInstructor" 
                             TypeName="SchoolModel.CourseInstructor" 
                             StoreEntitySet="CourseInstructor">
        <EndProperty Name="Course">
          <ScalarProperty Name="CourseID" ColumnName="CourseID" />
        </EndProperty>
        <EndProperty Name="Person">
          <ScalarProperty Name="PersonID" ColumnName="PersonID" />
        </EndProperty>
      </AssociationSetMapping>
    </EntityContainerMapping>
  </Mapping>
</edmx:Mappings>

Cadena de conexión para el modelo School

A continuación se ofrece un ejemplo de una cadena de conexión para el modelo School almacenado en el archivo de configuración de la aplicación. Para obtener más información, vea Cadenas de conexión (Entity Framework).

<configuration>
  <connectionStrings>
    <add name="SchoolEntities" 
         connectionString="metadata=res://*/School.csdl|res://*/School.ssdl|res://*/School.msl;
         provider=System.Data.SqlClient;provider connection string='Data Source=localhost;
         Initial Catalog=School;Integrated Security=True;MultipleActiveResultSets=True'" 
         providerName="System.Data.EntityClient" />
  </connectionStrings>
</configuration>

Vea también

Conceptos

ADO.NET Entity Framework

Otros recursos

Introducción (Entity Framework)
ADO.NET Entity Data Model Tools
.edmx File Overview