Speicherschema für AdventureWorks Sales (EDM)

Im Entitätsdatenmodell (EDM) werden Speichermetadaten in der Datenspeicherschema-Definitionssprache (Store Schema Definition Language, SSDL) definiert. In diesem Beispiel stellt das SSDL-Schema die Tabellen und Schlüssel von Daten in der AdventureWorks-Beispieldatenbank dar.

SSDL-Schema

Das folgende Beispiel enthält die Metadaten für fünf Tabellen in der AdventureWorks-Datenbank. Für die Definition der Strukturen des Speichermodells wird XML-Syntax verwendet. Entitätenmengen stellen Tabellen dar. Entitätstypen stellen Zeilen dar. Eigenschaften stellen Spalten in Zeilen dar. Zuordnungen stellen Fremdschlüsselbeziehungen dar. Zuordnungssätze definieren logisch den Gültigkeitsbereich von Zuordnungen.

Dieses Schema wird beim Mapping des im vorherigen Thema Konzeptionelles Schema für AdventureWorks Sales (EDM) erstellten Modells zum Speicher verwendet.

Im folgenden Beispiel wird das vollständige SSDL-Schema dargestellt.

<?xml version="1.0" encoding="utf-8"?>
<Schema Namespace="AdvWrksSalesModel.Store" Alias="Self"
    Provider="System.Data.SqlClient"
    ProviderManifestToken="2005"
    xmlns="https://schemas.microsoft.com/ado/2006/04/edm/ssdl">
  <EntityContainer Name="Person">
    <EntitySet Name="Address" EntityType="AdvWrksSalesModel.Store.Address" />
    <EntitySet Name="Contact" EntityType="AdvWrksSalesModel.Store.Contact" />
    <EntitySet Name="Product" EntityType="AdvWrksSalesModel.Store.Product" Schema="Production" />
    <EntitySet Name="SalesOrderDetail" EntityType="AdvWrksSalesModel.Store.SalesOrderDetail" Schema="Sales" />
    <EntitySet Name="SalesOrderHeader" EntityType="AdvWrksSalesModel.Store.SalesOrderHeader" Schema="Sales" />
    <AssociationSet Name="FK_SalesOrderDetail_SalesOrderHeader_SalesOrderID" Association="AdvWrksSalesModel.Store.FK_SalesOrderDetail_SalesOrderHeader_SalesOrderID">
      <End Role="SalesOrderHeader" EntitySet="SalesOrderHeader" />
      <End Role="SalesOrderDetail" EntitySet="SalesOrderDetail" />
    </AssociationSet>
    <AssociationSet Name="FK_SalesOrderHeader_Address_BillToAddressID" Association="AdvWrksSalesModel.Store.FK_SalesOrderHeader_Address_BillToAddressID">
      <End Role="Address" EntitySet="Address" />
      <End Role="SalesOrderHeader" EntitySet="SalesOrderHeader" />
    </AssociationSet>
    <AssociationSet Name="FK_SalesOrderHeader_Address_ShipToAddressID" Association="AdvWrksSalesModel.Store.FK_SalesOrderHeader_Address_ShipToAddressID">
      <End Role="Address" EntitySet="Address" />
      <End Role="SalesOrderHeader" EntitySet="SalesOrderHeader" />
    </AssociationSet>
    <AssociationSet Name="FK_SalesOrderHeader_Contact_ContactID" Association="AdvWrksSalesModel.Store.FK_SalesOrderHeader_Contact_ContactID">
      <End Role="Contact" EntitySet="Contact" />
      <End Role="SalesOrderHeader" EntitySet="SalesOrderHeader" />
    </AssociationSet>
  </EntityContainer>
  <EntityType Name="Address">
    <Key>
      <PropertyRef Name="AddressID" />
    </Key>
    <Property Name="AddressID" Type="int" Nullable="false" StoreGeneratedPattern="Identity" />
    <Property Name="AddressLine1" Type="nvarchar" Nullable="false" MaxLength="60" />
    <Property Name="AddressLine2" Type="nvarchar" MaxLength="60" />
    <Property Name="City" Type="nvarchar" Nullable="false" MaxLength="30" />
    <Property Name="StateProvinceID" Type="int" Nullable="false" />
    <Property Name="PostalCode" Type="nvarchar" Nullable="false" MaxLength="15" />
    <Property Name="rowguid" Type="uniqueidentifier" Nullable="false" />
    <Property Name="ModifiedDate" Type="datetime" Nullable="false" />
  </EntityType>
  <EntityType Name="Contact">
    <Key>
      <PropertyRef Name="ContactID" />
    </Key>
    <Property Name="ContactID" Type="int" Nullable="false" StoreGeneratedPattern="Identity" />
    <Property Name="NameStyle" Type="bit" Nullable="false" />
    <Property Name="Title" Type="nvarchar" MaxLength="8" />
    <Property Name="FirstName" Type="nvarchar" Nullable="false" MaxLength="50" />
    <Property Name="MiddleName" Type="nvarchar" MaxLength="50" />
    <Property Name="LastName" Type="nvarchar" Nullable="false" MaxLength="50" />
    <Property Name="Suffix" Type="nvarchar" MaxLength="10" />
    <Property Name="EmailAddress" Type="nvarchar" MaxLength="50" />
    <Property Name="EmailPromotion" Type="int" Nullable="false" />
    <Property Name="Phone" Type="nvarchar" MaxLength="25" />
    <Property Name="PasswordHash" Type="varchar" Nullable="false" MaxLength="128" />
    <Property Name="PasswordSalt" Type="varchar" Nullable="false" MaxLength="10" />
    <Property Name="AdditionalContactInfo" Type="xml" />
    <Property Name="rowguid" Type="uniqueidentifier" Nullable="false" />
    <Property Name="ModifiedDate" Type="datetime" Nullable="false" />
  </EntityType>
  <EntityType Name="Product">
    <Key>
      <PropertyRef Name="ProductID" />
    </Key>
    <Property Name="ProductID" Type="int" Nullable="false" StoreGeneratedPattern="Identity" />
    <Property Name="Name" Type="nvarchar" Nullable="false" MaxLength="50" />
    <Property Name="ProductNumber" Type="nvarchar" Nullable="false" MaxLength="25" />
    <Property Name="MakeFlag" Type="bit" Nullable="false" />
    <Property Name="FinishedGoodsFlag" Type="bit" Nullable="false" />
    <Property Name="Color" Type="nvarchar" MaxLength="15" />
    <Property Name="SafetyStockLevel" Type="smallint" Nullable="false" />
    <Property Name="ReorderPoint" Type="smallint" Nullable="false" />
    <Property Name="StandardCost" Type="money" Nullable="false" />
    <Property Name="ListPrice" Type="money" Nullable="false" />
    <Property Name="Size" Type="nvarchar" MaxLength="5" />
    <Property Name="SizeUnitMeasureCode" Type="nchar" MaxLength="3" />
    <Property Name="WeightUnitMeasureCode" Type="nchar" MaxLength="3" />
    <Property Name="Weight" Type="decimal" Precision="8" Scale="2" />
    <Property Name="DaysToManufacture" Type="int" Nullable="false" />
    <Property Name="ProductLine" Type="nchar" MaxLength="2" />
    <Property Name="Class" Type="nchar" MaxLength="2" />
    <Property Name="Style" Type="nchar" MaxLength="2" />
    <Property Name="ProductSubcategoryID" Type="int" />
    <Property Name="ProductModelID" Type="int" />
    <Property Name="SellStartDate" Type="datetime" Nullable="false" />
    <Property Name="SellEndDate" Type="datetime" />
    <Property Name="DiscontinuedDate" Type="datetime" />
    <Property Name="rowguid" Type="uniqueidentifier" Nullable="false" />
    <Property Name="ModifiedDate" Type="datetime" Nullable="false" />
  </EntityType>
  <EntityType Name="SalesOrderDetail">
    <Key>
      <PropertyRef Name="SalesOrderID" />
      <PropertyRef Name="SalesOrderDetailID" />
    </Key>
    <Property Name="SalesOrderID" Type="int" Nullable="false" />
    <Property Name="SalesOrderDetailID" Type="int" Nullable="false" StoreGeneratedPattern="Identity" />
    <Property Name="CarrierTrackingNumber" Type="nvarchar" MaxLength="25" />
    <Property Name="OrderQty" Type="smallint" Nullable="false" />
    <Property Name="ProductID" Type="int" Nullable="false" />
    <Property Name="SpecialOfferID" Type="int" Nullable="false" />
    <Property Name="UnitPrice" Type="money" Nullable="false" />
    <Property Name="UnitPriceDiscount" Type="money" Nullable="false" />
    <Property Name="LineTotal" Type="numeric" Nullable="false" Precision="38" Scale="6" StoreGeneratedPattern="Computed" />
    <Property Name="rowguid" Type="uniqueidentifier" Nullable="false" />
    <Property Name="ModifiedDate" Type="datetime" Nullable="false" />
  </EntityType>
  <EntityType Name="SalesOrderHeader">
    <Key>
      <PropertyRef Name="SalesOrderID" />
    </Key>
    <Property Name="SalesOrderID" Type="int" Nullable="false" StoreGeneratedPattern="Identity" />
    <Property Name="RevisionNumber" Type="tinyint" Nullable="false" />
    <Property Name="OrderDate" Type="datetime" Nullable="false" />
    <Property Name="DueDate" Type="datetime" Nullable="false" />
    <Property Name="ShipDate" Type="datetime" />
    <Property Name="Status" Type="tinyint" Nullable="false" />
    <Property Name="OnlineOrderFlag" Type="bit" Nullable="false" />
    <Property Name="SalesOrderNumber" Type="nvarchar" Nullable="false" MaxLength="25" StoreGeneratedPattern="Computed" />
    <Property Name="PurchaseOrderNumber" Type="nvarchar" MaxLength="25" />
    <Property Name="AccountNumber" Type="nvarchar" MaxLength="15" />
    <Property Name="CustomerID" Type="int" Nullable="false" />
    <Property Name="ContactID" Type="int" Nullable="false" />
    <Property Name="SalesPersonID" Type="int" />
    <Property Name="TerritoryID" Type="int" />
    <Property Name="BillToAddressID" Type="int" Nullable="false" />
    <Property Name="ShipToAddressID" Type="int" Nullable="false" />
    <Property Name="ShipMethodID" Type="int" Nullable="false" />
    <Property Name="CreditCardID" Type="int" />
    <Property Name="CreditCardApprovalCode" Type="varchar" MaxLength="15" />
    <Property Name="CurrencyRateID" Type="int" />
    <Property Name="SubTotal" Type="money" Nullable="false" />
    <Property Name="TaxAmt" Type="money" Nullable="false" />
    <Property Name="Freight" Type="money" Nullable="false" />
    <Property Name="TotalDue" Type="money" Nullable="false" StoreGeneratedPattern="Computed" />
    <Property Name="Comment" Type="nvarchar" MaxLength="128" />
    <Property Name="rowguid" Type="uniqueidentifier" Nullable="false" />
    <Property Name="ModifiedDate" Type="datetime" Nullable="false" />
  </EntityType>
  <Association Name="FK_SalesOrderDetail_SalesOrderHeader_SalesOrderID">
    <End Role="SalesOrderHeader" Type="AdvWrksSalesModel.Store.SalesOrderHeader" Multiplicity="1">
      <OnDelete Action="Cascade" />
    </End>
    <End Role="SalesOrderDetail" Type="AdvWrksSalesModel.Store.SalesOrderDetail" Multiplicity="*" />
    <ReferentialConstraint>
      <Principal Role="SalesOrderHeader">
        <PropertyRef Name="SalesOrderID" />
      </Principal>
      <Dependent Role="SalesOrderDetail">
        <PropertyRef Name="SalesOrderID" />
      </Dependent>
    </ReferentialConstraint>
  </Association>
  <Association Name="FK_SalesOrderHeader_Address_BillToAddressID">
    <End Role="Address" Type="AdvWrksSalesModel.Store.Address" Multiplicity="1" />
    <End Role="SalesOrderHeader" Type="AdvWrksSalesModel.Store.SalesOrderHeader" Multiplicity="*" />
    <ReferentialConstraint>
      <Principal Role="Address">
        <PropertyRef Name="AddressID" />
      </Principal>
      <Dependent Role="SalesOrderHeader">
        <PropertyRef Name="BillToAddressID" />
      </Dependent>
    </ReferentialConstraint>
  </Association>
  <Association Name="FK_SalesOrderHeader_Address_ShipToAddressID">
    <End Role="Address" Type="AdvWrksSalesModel.Store.Address" Multiplicity="1" />
    <End Role="SalesOrderHeader" Type="AdvWrksSalesModel.Store.SalesOrderHeader" Multiplicity="*" />
    <ReferentialConstraint>
      <Principal Role="Address">
        <PropertyRef Name="AddressID" />
      </Principal>
      <Dependent Role="SalesOrderHeader">
        <PropertyRef Name="ShipToAddressID" />
      </Dependent>
    </ReferentialConstraint>
  </Association>
  <Association Name="FK_SalesOrderHeader_Contact_ContactID">
    <End Role="Contact" Type="AdvWrksSalesModel.Store.Contact" Multiplicity="1" />
    <End Role="SalesOrderHeader" Type="AdvWrksSalesModel.Store.SalesOrderHeader" Multiplicity="*" />
    <ReferentialConstraint>
      <Principal Role="Contact">
        <PropertyRef Name="ContactID" />
      </Principal>
      <Dependent Role="SalesOrderHeader">
        <PropertyRef Name="ContactID" />
      </Dependent>
    </ReferentialConstraint>
  </Association>
</Schema>

Siehe auch

Konzepte

Konzeptionelles Schema für AdventureWorks Sales (EDM)
AdventureWorks Sales-Mappingschema (EDM)
AdventureWorks Sales-Verbindung (EDM)