Freigeben über

Modell "School"

  • Artikel

Dieses Thema enthält das konzeptionelle Modell, das Speichermodell und die Zuordnungsinformationen für die Beispieldatenbank "School". Informationen zum Erstellen der Datenbank "School" finden Sie unter Erstellen der Beispieldatenbank "School".

Das Modell "School" wird im Beispielcode zum Entity Framework und in der Dokumentation zu den Entity Data Model-Tools verwendet. Das konzeptionelle Modell, das Speichermodell und die Zuordnungsinformationen werden jeweils in konzeptioneller Schemadefinitionssprache (CSDL), Datenspeicherschema-Definitionssprache (SSDL) und MSL (Mapping-Spezifikationssprache) ausgedrückt. Zur Erstellung des konzeptionellen Modells, des Speichermodells und der Zuordnungen wird die Verwendung des Entity Data Model Wizard oder das Befehlszeilentool "EdmGen.exe" empfohlen.

Bb896300.note(de-de,VS.100).gifHinweis:
Informationen zur Erweiterung des Modells "School" mithilfe vom Entity Data Model-Designer finden Sie unter ADO.NET Entity Data Model Designer Scenarios.

Modell- und Zuordnungsdefinitionen

Der folgende Code enthält den konzeptionellen Inhalt, Speicherinhalt und Zuordnungsinhalt für das Modell "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>

Verbindungszeichenfolge für das Modell "School"

Im Folgenden finden Sie ein Beispiel einer Verbindungszeichenfolge für das Modell "School", die in der Konfigurationsdatei der Anwendung gespeichert ist. Weitere Informationen finden Sie unter Verbindungszeichenfolgen (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>

Siehe auch

Konzepte

ADO.NET Entity Framework

Weitere Ressourcen

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