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Схемы программы Annotation Research Tool (образец приложения модели EDM)

  • Статья

Сущности, реализованные в этом приложении, используют модель Entity Data Model (EDM), объявляются и определяются на языке CSDL. Три сущности используются для хранения данных о веб-ссылках, дескрипторах ссылок и контактных лицах. Четвертая сущность необходима для хранения пар идентификаторов, соединяющих ссылки и контактные лица. Дополнительные сведения о сущностях и ассоциациях см. в разделе Спецификации модели EDM.

Каждое контактное лицо может быть связано со многими ссылками, а ассоциации между контактными лицами и ссылками должны быть реализованы как ассоциации типа «многие ко многим». Каждый дескриптор ссылки содержит данные только для одной веб-ссылки, но ссылка может быть связана со многими дескрипторами ссылки; ассоциация между ссылками и дескрипторами ссылок реализована по схеме «многие к одному».

Следующий сегмент схемы содержит декларацию для сущности Reference. Свойство Key задано как свойство ReferenceID. Существует три дополнительных свойства: DocumentType, DocumentText и Locator. Свойство Locator содержит URL-адрес, используемый для поиска веб-ссылки. Хотя свойства DocumentType и DocumentText не используются в коде приложения в данном примере, они приведены для дополнительных экспериментов с использованием функций полнотекстового поиска SQL Server. Дополнительные сведения о схемах см. в разделе Схемы (модель EDM).

Свойство навигации с именем RefDescriptors предоставляет быструю ссылку в коде приложения на экземпляры сущности ReferenceDescriptor, связанные с экземпляром типа Reference. Дополнительные сведения о свойствах навигации см. в разделе Свойства навигации (модель EDM).

  <EntityType Name="Reference">
    <Key>
      <PropertyRef Name="ReferenceID" />
    </Key>
    <Property Name="ReferenceID" Type="Guid" Nullable="false" />
    <Property Name="DocumentType" Type="String" MaxLength="8" />
    <Property Name="DocumentText" Type="String" MaxLength="4000" />
    <Property Name="Locator" Type="String" Nullable="false"
         MaxLength="500" />
    <NavigationProperty Name="RefDescriptors"
         Relationship="Self.ReferenceDescriptor_Reference"
         FromRole="Reference" ToRole="ReferenceDescriptor" />
  </EntityType>

Сущность ReferenceDescriptor объявлена и определена в следующем фрагменте схемы:

  <EntityType Name="ReferenceDescriptor">
    <Key>
      <PropertyRef Name="DescriptorID" />
    </Key>
    <Property Name="DescriptorID" Type="Guid" Nullable="false" />
    <Property Name="Annotation" Type="String" MaxLength="2000" />
    <Property Name="Keyword" Type="String" MaxLength="50" />
    <NavigationProperty Name="Reference"
          Relationship="Self.ReferenceDescriptor_Reference"
          FromRole="ReferenceDescriptor" ToRole="Reference" />
  </EntityType>

Эта сущность содержит свойство Annotation и свойство Keyword. Их можно использовать для категоризации и описания веб-страницы Reference. Любое свойство может иметь значение NULL, но одно из них должно быть назначено. Проверить это можно с помощью пользовательского интерфейса приложения.

Свойство навигации сущности Reference использует ассоциацию Association, определенную в следующем фрагменте схемы:

  <Association Name="ReferenceDescriptor_Reference">
    <End Role="Reference" Type="ResearchCollaborationDataModel.Reference" Multiplicity="1" />
    <End Role="ReferenceDescriptor"
       Type="ResearchCollaborationDataModel.ReferenceDescriptor"
       Multiplicity="*" />
  </Association>

Теги <End>, используемые в этой ассоциации, указывают сущности Reference и ReferenceDescriptor в связи «один ко многим». Каждая сущность Reference может быть описана любым числом дескрипторов. После построения модели объектов свойство навигации работает подобно коллекции экземпляров RefDescriptor. Свойство навигации строится как сущность ObjectQuery в программируемой модели данных.

Определения End и Role в этой ассоциации являются синонимами.

Реализация ассоциации «многие ко многим»

Поскольку любое число References может быть связано с любым числом Contacts, ассоциация между этими сущностями должна быть реализована как ассоциация «многие ко многим». Для ассоциации «многие ко многим» требуются таблица ссылок в реализации хранилища и декларация сущности как в концептуальной схеме, так и в метаданных хранилища для представления таблицы ссылок. Затем объявляются ассоциации между сущностью ссылки и сущностями Contact и Reference.

Следующая декларация сущности на языке CSDL использует таблицу ссылок в базе данных. Аналогичная декларация на языке SSDL предоставляет метаданные для таблицы ссылок.

  <EntityType Name="ContactPersonReference">
    <Key>
      <PropertyRef Name="ContactPersonRefID" />
    </Key>
    <Property Name="ContactPersonRefID" Type="Guid" Nullable="false" />
      <NavigationProperty Name="RelatedReference"
          Relationship="Self.LinkTable_Reference"
          FromRole="ContactPersonReference" ToRole="Reference" />
      <NavigationProperty Name="RelatedContact"
          Relationship="Self.LinkTable_ContactPerson"
          FromRole="ContactPersonReference" ToRole="ContactPerson" />
  </EntityType>

Свойство Key идентификатора — единственное объявленное свойство в этой схеме. Свойства навигации представляют коллекции связанных экземпляров Reference и связанных экземпляров ContactPerson. В таблице данных есть столбцы, содержащие пары идентификаторов GUID ReferenceID и ContactPersonID.

Две ассоциации поддерживают связь «многие ко многим»: LinkTable_Reference и LinkTable_ContactPerson. Эти ассоциации определены в следующем синтаксисе:

  <AssociationSet Name="LinkTable_Reference"
      Association="ResearchCollaborationDataModel.LinkTable_Reference">
    <End Role="Reference" EntitySet="Reference" />
    <End Role="ContactPersonReference"
       EntitySet="ContactPersonReference" />
  </AssociationSet>

  <Association Name="LinkTable_ContactPerson">
    <End Role="ContactPerson" Type="ResearchCollaborationDataModel.ContactPerson" Multiplicity="1" />
    <End Role="ContactPersonReference"
       Type="ResearchCollaborationDataModel.ContactPersonReference"
       Multiplicity="*" />
  </Association>

Каждая из этих ассоциаций определена как «одна ко многим», но свойства навигации для сущности ссылки соединяют коллекции пар Reference/ContactPerson.

Полные схемы и спецификация сопоставления

Следующие разделы содержат схемы и спецификацию сопоставления, используемые в этом примере.

Концептуальная схема (язык CSDL)

Сущности и ассоциации, используемые приложением, определены на языке CSDL. Модель объектов построена на основе этой схемы.

<?xml version="1.0" encoding="utf-8"?>
   <Schema Namespace="ResearchCollaborationDataModel" Alias="Self"
        xmlns="https://schemas.microsoft.com/ado/2006/04/edm">

  <EntityType Name="Reference">
    <Key>
      <PropertyRef Name="ReferenceID" />
    </Key>
    <Property Name="ReferenceID" Type="Guid" Nullable="false" />
    <Property Name="DocumentType" Type="String" />
    <Property Name="DocumentText" Type="String" />
    <Property Name="Locator" Type="String" Nullable="false" />
    <NavigationProperty Name="RefDescriptors"
 Relationship="Self.ReferenceDescriptor_Reference" FromRole="Reference"
 ToRole="ReferenceDescriptor" />
  </EntityType>

  <EntityType Name="ReferenceDescriptor">
    <Key>
      <PropertyRef Name="DescriptorID" />
    </Key>
    <Property Name="DescriptorID" Type="Guid" Nullable="false" />
    <Property Name="Annotation" Type="String" />
    <Property Name="Keyword" Type="String" />
    <NavigationProperty Name="Reference"
        Relationship="Self.ReferenceDescriptor_Reference"
        FromRole="ReferenceDescriptor" ToRole="Reference" />
  </EntityType>

  <EntityType Name="ContactPerson">
    <Key>
      <PropertyRef Name="ContactPersonID" />
    </Key>
    <Property Name="ContactPersonID" Type="Guid" Nullable="false" />
    <Property Name="LastName" Type="String" Nullable="false" />
    <Property Name="FirstName" Type="String" Nullable="false" />
    <Property Name="Title" Type="String" />
    <Property Name="Email" Type="String" Nullable="false" />
  </EntityType>

  <EntityType Name="ContactPersonReference">
    <Key>
      <PropertyRef Name="ContactPersonRefID" />
    </Key>
    <Property Name="ContactPersonRefID" Type="Guid" Nullable="false" />
      <NavigationProperty Name="RelatedReference" Relationship="Self.LinkTable_Reference"
            FromRole="ContactPersonReference" ToRole="Reference" />
      <NavigationProperty Name="RelatedContact" Relationship="Self.LinkTable_ContactPerson"
        FromRole="ContactPersonReference" ToRole="ContactPerson" />
  </EntityType>

  <Association Name="ReferenceDescriptor_Reference">
    <End Role="Reference" Type="ResearchCollaborationDataModel.Reference" Multiplicity="1" />
    <End Role="ReferenceDescriptor" Type="ResearchCollaborationDataModel.ReferenceDescriptor" Multiplicity="*" />
  </Association>

  <Association Name="LinkTable_ContactPerson">
    <End Role="ContactPerson" Type="ResearchCollaborationDataModel.ContactPerson" Multiplicity="1" />
    <End Role="ContactPersonReference" Type="ResearchCollaborationDataModel.ContactPersonReference" Multiplicity="*" />
  </Association>

  <Association Name="LinkTable_Reference">
    <End Role="Reference" Type="ResearchCollaborationDataModel.Reference" Multiplicity="1" />
    <End Role="ContactPersonReference"
 Type="ResearchCollaborationDataModel.ContactPersonReference"
 Multiplicity="*" />
  </Association>

  <EntityContainer Name="ResearchCollaborationData">
      
    <EntitySet Name="ContactPerson"
 EntityType="ResearchCollaborationDataModel.ContactPerson" />
    <EntitySet Name="ContactPersonReference"
 EntityType="ResearchCollaborationDataModel.ContactPersonReference" />
    <EntitySet Name="Reference" EntityType="ResearchCollaborationDataModel.Reference" />
    <EntitySet Name="ReferenceDescriptor"
 EntityType="ResearchCollaborationDataModel.ReferenceDescriptor" />
    
    <AssociationSet Name="LinkTable_ContactPerson"
 Association="ResearchCollaborationDataModel.LinkTable_ContactPerson">
      <End Role="ContactPerson" EntitySet="ContactPerson" />
      <End Role="ContactPersonReference"
           EntitySet="ContactPersonReference" />
    </AssociationSet>
    
    <AssociationSet Name="LinkTable_Reference"
 Association="ResearchCollaborationDataModel.LinkTable_Reference">
      <End Role="Reference" EntitySet="Reference" />
      <End Role="ContactPersonReference"
            EntitySet="ContactPersonReference" />
    </AssociationSet>
    
    <AssociationSet Name="ReferenceDescriptor_Reference"
 Association="ResearchCollaborationDataModel.ReferenceDescriptor_Reference">
      <End Role="Reference" EntitySet="Reference" />
      <End Role="ReferenceDescriptor" EntitySet="ReferenceDescriptor" />
    </AssociationSet>

  </EntityContainer>

</Schema>

Схема метаданных хранилища (язык SSDL)

Метаданные структур хранилища, используемые приложениями модели EDM, определяются с помощью языка SSDL.

<?xml version="1.0" encoding="utf-8"?>
  <Schema Namespace="ResearchCollaborationDataTarget" Alias="Self"
      Provider="System.Data.SqlClient"
      ProviderManifestToken="2005"
      xmlns="https://schemas.microsoft.com/ado/2006/04/edm/ssdl">

  <EntityType Name="ContactPerson">
    <Key>
      <PropertyRef Name="ContactPersonID" />
    </Key>
    <Property Name="ContactPersonID" Type="uniqueidentifier"
         Nullable="false" />
    <Property Name="LastName" Type="nvarchar" Nullable="false"
         MaxLength="50" />
    <Property Name="FirstName" Type="nvarchar" Nullable="false"
         MaxLength="50" />
    <Property Name="Title" Type="nvarchar" MaxLength="50" />
    <Property Name="Email" Type="nvarchar" Nullable="false"
         MaxLength="50" />
  </EntityType>

  <EntityType Name="ContactPersonReference">
    <Key>
      <PropertyRef Name="ContactPersonRefID" />
    </Key>
    <Property Name="ContactPersonID" Type="uniqueidentifier"
          Nullable="false" />
    <Property Name="ReferenceID" Type="uniqueidentifier"
          Nullable="false" />
    <Property Name="ContactPersonRefID" Type="uniqueidentifier"
          Nullable="false" />
  </EntityType>

  <EntityType Name="Reference">
    <Key>
      <PropertyRef Name="ReferenceID" />
    </Key>
    <Property Name="ReferenceID" Type="uniqueidentifier"
         Nullable="false" />
    <Property Name="DocumentType" Type="nvarchar" MaxLength="8" />
    <Property Name="DocumentText" Type="nvarchar" MaxLength="4000" />
    <Property Name="Locator" Type="nvarchar" Nullable="false"
         MaxLength="500" />
  </EntityType>

  <EntityType Name="ReferenceDescriptor">
    <Key>
      <PropertyRef Name="DescriptorID" />
    </Key>
    <Property Name="DescriptorID" Type="uniqueidentifier"
           Nullable="false" />
    <Property Name="ReferenceID" Type="uniqueidentifier"
           Nullable="false" />
    <Property Name="Annotation" Type="nvarchar" MaxLength="2000" />
    <Property Name="Keyword" Type="nvarchar" MaxLength="50" />
  </EntityType>

  <Association Name="LinkTable_ContactPerson">
    <End Role="ContactPerson"
          Type="ResearchCollaborationDataTarget.ContactPerson" Multiplicity="1"/>
    <End Role="ContactPersonReference"
       Type="ResearchCollaborationDataTarget.ContactPersonReference"
       Multiplicity="*" />
    <ReferentialConstraint>
      <Principal Role="ContactPerson">
        <PropertyRef Name="ContactPersonID" />
      </Principal>
      <Dependent Role="ContactPersonReference">
        <PropertyRef Name="ContactPersonID" />
      </Dependent>
    </ReferentialConstraint>
  </Association>

  <Association Name="LinkTable_Reference">
    <End Role="Reference"
         Type="ResearchCollaborationDataTarget.Reference"
         Multiplicity="1" />
    <End Role="ContactPersonReference"
       Type="ResearchCollaborationDataTarget.ContactPersonReference"
       Multiplicity="*" />
    <ReferentialConstraint>
      <Principal Role="Reference">
        <PropertyRef Name="ReferenceID" />
      </Principal>
      <Dependent Role="ContactPersonReference">
        <PropertyRef Name="ReferenceID" />
      </Dependent>
    </ReferentialConstraint>
  </Association>

  <Association Name="ReferenceDescriptor_Reference">
    <End Role="Reference"
   Type="ResearchCollaborationDataTarget.Reference" Multiplicity="1" />
    <End Role="ReferenceDescriptor"
           Type="ResearchCollaborationDataTarget.ReferenceDescriptor"
           Multiplicity="*" />
    <ReferentialConstraint>
      <Principal Role="Reference">
        <PropertyRef Name="ReferenceID" />
      </Principal>
      <Dependent Role="ReferenceDescriptor">
        <PropertyRef Name="ReferenceID" />
      </Dependent>
    </ReferentialConstraint>
  </Association>

  <EntityContainer Name="dbo">
    <EntitySet Name="ContactPerson"
       EntityType="ResearchCollaborationDataTarget.ContactPerson" />
    <EntitySet Name="ContactPersonReference"
 EntityType="ResearchCollaborationDataTarget.ContactPersonReference"/>
    <EntitySet Name="Reference"
       EntityType="ResearchCollaborationDataTarget.Reference" />
    <EntitySet Name="ReferenceDescriptor"
   EntityType="ResearchCollaborationDataTarget.ReferenceDescriptor"/>

    <AssociationSet Name="LinkTable_ContactPerson"
  Association="ResearchCollaborationDataTarget.LinkTable_ContactPerson">
      <End Role="ContactPerson" EntitySet="ContactPerson" />
      <End Role="ContactPersonReference"
          EntitySet="ContactPersonReference" />
    </AssociationSet>
    <AssociationSet Name="LinkTable_Reference"
    Association="ResearchCollaborationDataTarget.LinkTable_Reference">
      <End Role="Reference" EntitySet="Reference" />
      <End Role="ContactPersonReference"
          EntitySet="ContactPersonReference" />
    </AssociationSet>

    <AssociationSet Name="ReferenceDescriptor_Reference"
 Association="ResearchCollaborationDataTarget.ReferenceDescriptor_Reference">
      <End Role="Reference" EntitySet="Reference" />
      <End Role="ReferenceDescriptor" EntitySet="ReferenceDescriptor" />
    </AssociationSet>
  </EntityContainer>

</Schema>

Спецификация сопоставления (язык MSL)

Сущности и ассоциации, определенные на языке CSDL, сопоставляются с метаданными хранилища, описанными на языке SSDL, с помощью языка MSL.

<?xml version="1.0" encoding="utf-8"?>
<Mapping Space="C-S"
    xmlns:edm="urn:schemas-microsoft-com:windows:storage:mapping:CS"
    xmlns="urn:schemas-microsoft-com:windows:storage:mapping:CS">

  <edm:EntityContainerMapping
           CdmEntityContainer="ResearchCollaborationData"
           StorageEntityContainer="dbo">
    <edm:EntitySetMapping Name="ContactPerson">
      <edm:EntityTypeMapping
         TypeName="ResearchCollaborationDataModel.ContactPerson">
        <edm:MappingFragment StoreEntitySet="ContactPerson">
          <edm:ScalarProperty Name="ContactPersonID"
               ColumnName="ContactPersonID" />
          <edm:ScalarProperty Name="LastName" ColumnName="LastName"/>
          <edm:ScalarProperty Name="FirstName" 
               ColumnName="FirstName" />
          <edm:ScalarProperty Name="Title" ColumnName="Title" />
          <edm:ScalarProperty Name="Email" ColumnName="Email" />
        </edm:MappingFragment>
      </edm:EntityTypeMapping>
    </edm:EntitySetMapping>
    <edm:EntitySetMapping Name="ContactPersonReference">
      <edm:EntityTypeMapping
    TypeName="ResearchCollaborationDataModel.ContactPersonReference">
        <edm:MappingFragment StoreEntitySet="ContactPersonReference">
          <edm:ScalarProperty Name="ContactPersonRefID"
              ColumnName="ContactPersonRefID" />
        </edm:MappingFragment>
      </edm:EntityTypeMapping>
    </edm:EntitySetMapping>
    <edm:EntitySetMapping Name="Reference">
      <edm:EntityTypeMapping
            TypeName="ResearchCollaborationDataModel.Reference">
        <edm:MappingFragment StoreEntitySet="Reference">
          <edm:ScalarProperty Name="ReferenceID"
               ColumnName="ReferenceID" />
          <edm:ScalarProperty Name="DocumentType"
               ColumnName="DocumentType" />
          <edm:ScalarProperty Name="DocumentText"
               ColumnName="DocumentText" />
          <edm:ScalarProperty Name="Locator" 
               ColumnName="Locator" />
        </edm:MappingFragment>
      </edm:EntityTypeMapping>
    </edm:EntitySetMapping>
    <edm:EntitySetMapping Name="ReferenceDescriptor">
      <edm:EntityTypeMapping
       TypeName="ResearchCollaborationDataModel.ReferenceDescriptor">
        <edm:MappingFragment StoreEntitySet="ReferenceDescriptor">
          <edm:ScalarProperty Name="DescriptorID"
               ColumnName="DescriptorID" />
          <edm:ScalarProperty Name="Annotation" 
               ColumnName="Annotation" />
          <edm:ScalarProperty Name="Keyword" ColumnName="Keyword" />
        </edm:MappingFragment>
      </edm:EntityTypeMapping>
    </edm:EntitySetMapping>
    <edm:AssociationSetMapping Name="LinkTable_ContactPerson"
      TypeName="ResearchCollaborationDataModel.LinkTable_ContactPerson"
        StoreEntitySet="ContactPersonReference">
      <edm:EndProperty Name="ContactPerson">
        <edm:ScalarProperty Name="ContactPersonID"
              ColumnName="ContactPersonID" />
      </edm:EndProperty>
      <edm:EndProperty Name="ContactPersonReference">
        <edm:ScalarProperty Name="ContactPersonRefID"
             ColumnName="ContactPersonRefID" />
      </edm:EndProperty>
      <edm:Condition ColumnName="ContactPersonID" IsNull="false" />
    </edm:AssociationSetMapping>
    <edm:AssociationSetMapping Name="LinkTable_Reference"
         TypeName="ResearchCollaborationDataModel.LinkTable_Reference"
         StoreEntitySet="ContactPersonReference">
      <edm:EndProperty Name="Reference">
        <edm:ScalarProperty Name="ReferenceID" 
              ColumnName="ReferenceID" />
      </edm:EndProperty>
      <edm:EndProperty Name="ContactPersonReference">
        <edm:ScalarProperty Name="ContactPersonRefID"
             ColumnName="ContactPersonRefID" />
      </edm:EndProperty>
      <edm:Condition ColumnName="ReferenceID" IsNull="false" />
    </edm:AssociationSetMapping>
    <edm:AssociationSetMapping Name="ReferenceDescriptor_Reference"
  TypeName="ResearchCollaborationDataModel.ReferenceDescriptor_Reference"
  StoreEntitySet="ReferenceDescriptor">
      <edm:EndProperty Name="Reference">
        <edm:ScalarProperty Name="ReferenceID" 
            ColumnName="ReferenceID" />
      </edm:EndProperty>
      <edm:EndProperty Name="ReferenceDescriptor">
        <edm:ScalarProperty Name="DescriptorID"
            ColumnName="DescriptorID" />
      </edm:EndProperty>
      <edm:Condition ColumnName="ReferenceID" IsNull="false" />
    </edm:AssociationSetMapping>
  </edm:EntityContainerMapping>
</Mapping>

Следующий сценарий можно использовать для создания базы данных, используемой в этом примере. Для создания базы данных ResearchCollaborationData и схемы при помощи среды SQL Server Management Studio выполните следующие действия.

  1. В меню «Файл» укажите пункт «Создать» и выберите пункт «Запрос к ядру СУБД».

  2. В диалоговом окне «Подключиться к компоненту Database Engine» введите значение localhost или имя экземпляра SQL Server, после чего нажмите кнопку «Соединить».

  3. Вставьте следующий сценарий Transact-SQL в окно запроса и нажмите кнопку «Выполнить».

SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO

USE [master];
GO

IF EXISTS (SELECT * FROM sys.databases 
WHERE name = 'ResearchCollaborationData')
DROP DATABASE ResearchCollaborationData;
GO

-- Create the database.
CREATE DATABASE ResearchCollaborationData;
GO

USE ResearchCollaborationData;
GO

IF NOT EXISTS (SELECT * FROM sys.objects 
WHERE object_id = OBJECT_ID(N'[dbo].[ContactPerson]') 
AND type in (N'U'))
BEGIN
CREATE TABLE [dbo].[ContactPerson](
[ContactPersonID] [uniqueidentifier] NOT NULL,
[LastName] [nvarchar](50) NOT NULL,
[FirstName] [nvarchar](50) NOT NULL,
[Title] [nvarchar](50) NULL,
[Email] [nvarchar](50) NOT NULL,
 CONSTRAINT [PK_ContactPerson] PRIMARY KEY CLUSTERED 
(
[ContactPersonID] ASC
)WITH (PAD_INDEX  = OFF, IGNORE_DUP_KEY = OFF) ON [PRIMARY]
) ON [PRIMARY]
END
GO
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
IF NOT EXISTS (SELECT * FROM sys.objects 
WHERE object_id = OBJECT_ID(N'[dbo].[Reference]') 
AND type in (N'U'))
BEGIN
CREATE TABLE [dbo].[Reference](
[ReferenceID] [uniqueidentifier] NOT NULL,
[DocumentType] [nvarchar](8) NULL,
[DocumentText] [nvarchar](max) NULL,
[Locator] [nvarchar](500) NOT NULL,
 CONSTRAINT [PK_Reference] PRIMARY KEY CLUSTERED 
(
[ReferenceID] ASC
)WITH (PAD_INDEX  = OFF, IGNORE_DUP_KEY = OFF) ON [PRIMARY]
) ON [PRIMARY]
END
GO
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
IF NOT EXISTS (SELECT * FROM sys.objects 
WHERE object_id = OBJECT_ID(N'[dbo].[ContactPersonReference]') 
AND type in (N'U'))
BEGIN
CREATE TABLE [dbo].[ContactPersonReference](
[ContactPersonID] [uniqueidentifier] NOT NULL,
[ReferenceID] [uniqueidentifier] NOT NULL,
[ContactPersonRefID] [uniqueidentifier] NOT NULL,
 CONSTRAINT [PK_ContactPersonReference] PRIMARY KEY CLUSTERED 
(
[ContactPersonRefID] ASC
)WITH (PAD_INDEX  = OFF, IGNORE_DUP_KEY = OFF) ON [PRIMARY]
) ON [PRIMARY]
END
GO
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
IF NOT EXISTS (SELECT * FROM sys.objects 
WHERE object_id = OBJECT_ID(N'[dbo].[ReferenceDescriptor]') 
AND type in (N'U'))
BEGIN
CREATE TABLE [dbo].[ReferenceDescriptor](
[DescriptorID] [uniqueidentifier] NOT NULL,
[ReferenceID] [uniqueidentifier] NOT NULL,
[Annotation] [nvarchar](2000) NULL,
[Keyword] [nvarchar](50) NULL,
 CONSTRAINT [PK_ReferenceDescriptor] PRIMARY KEY CLUSTERED 
(
[DescriptorID] ASC
)WITH (PAD_INDEX  = OFF, IGNORE_DUP_KEY = OFF) ON [PRIMARY]
) ON [PRIMARY]
END
GO
IF NOT EXISTS (SELECT * FROM sys.foreign_keys 
WHERE object_id = OBJECT_ID(N'[dbo].[LinkTable_ContactPerson]') AND parent_object_id = 
OBJECT_ID(N'[dbo].[ContactPersonReference]'))
ALTER TABLE [dbo].[ContactPersonReference]  
WITH CHECK ADD  CONSTRAINT [LinkTable_ContactPerson] FOREIGN KEY([ContactPersonID])
REFERENCES [dbo].[ContactPerson] ([ContactPersonID])
GO
ALTER TABLE [dbo].[ContactPersonReference] CHECK CONSTRAINT [LinkTable_ContactPerson]
GO
IF NOT EXISTS (SELECT * FROM sys.foreign_keys 
WHERE object_id = OBJECT_ID(N'[dbo].[LinkTable_Reference]') AND parent_object_id = 
OBJECT_ID(N'[dbo].[ContactPersonReference]'))
ALTER TABLE [dbo].[ContactPersonReference]  
WITH CHECK ADD  CONSTRAINT [LinkTable_Reference] FOREIGN KEY([ReferenceID])
REFERENCES [dbo].[Reference] ([ReferenceID])
GO
ALTER TABLE [dbo].[ContactPersonReference] CHECK CONSTRAINT [LinkTable_Reference]
GO
IF NOT EXISTS (SELECT * FROM sys.foreign_keys 
WHERE object_id = OBJECT_ID(N'[dbo].[ReferenceDescriptor_Reference]') 
AND parent_object_id = OBJECT_ID(N'[dbo].[ReferenceDescriptor]'))
ALTER TABLE [dbo].[ReferenceDescriptor]  
WITH CHECK ADD  CONSTRAINT [ReferenceDescriptor_Reference] FOREIGN KEY([ReferenceID])
REFERENCES [dbo].[Reference] ([ReferenceID])
GO
ALTER TABLE [dbo].[ReferenceDescriptor] CHECK CONSTRAINT [ReferenceDescriptor_Reference]
GO

USE ResearchCollaborationData
GO

INSERT INTO dbo.Reference(ReferenceId, DocumentType, DocumentText, Locator)
VALUES ('12b18fe1-be82-486c-b248-00183aad2c88', '', '', 'https://msdn2.microsoft.com/en-us/data/aa937722.aspx')
INSERT INTO dbo.Reference(ReferenceId, DocumentType, DocumentText, Locator)
VALUES ('34bf3c5f-202a-45fe-af42-0a1d9bf489e2', '', '', 'https://msdn2.microsoft.com/en-us/library/190bkk9s.aspx')
INSERT INTO dbo.Reference(ReferenceId, DocumentType, DocumentText, Locator)
VALUES ('cfc4a592-296d-4b6f-b8fe-0e7a42b4a29a', '', '', 'https://blogs.msdn.com/adonet/archive/2007/01/30/entity-data-model-part-1.aspx')
INSERT INTO dbo.Reference(ReferenceId, DocumentType, DocumentText, Locator)
VALUES ('aad24f4c-c461-4d62-8723-6b52574311d1', '', '', 'https://www.microsoft.com/windows/directx/productinfo/overview/default.mspx')
INSERT INTO dbo.Reference(ReferenceId, DocumentType, DocumentText, Locator)
VALUES ('7d4a1c27-3046-4866-974f-81b1e4642719', '', '', 'https://msdn2.microsoft.com/en-us/library/ms269115.aspx')
INSERT INTO dbo.Reference(ReferenceId, DocumentType, DocumentText, Locator)
VALUES ('7b217f44-3ed0-492f-aaf6-8c064e3e8c75', '', '', 'https://www.microsoft.com/casestudies/casestudy.aspx?casestudyid=49271')
INSERT INTO dbo.Reference(ReferenceId, DocumentType, DocumentText, Locator)
VALUES ('dbd5d613-990b-4280-b739-8d1ad4476a5f', '', '', 'https://www.microsoft.com/windows/directx/default.mspx')
INSERT INTO dbo.Reference(ReferenceId, DocumentType, DocumentText, Locator)
VALUES ('4f267ad7-c1e8-469c-aff7-9a766952c40c', '', '', 'https://www.microsoft.com/windowsvista/features/foreveryone/networking.mspx')
INSERT INTO dbo.Reference(ReferenceId, DocumentType, DocumentText, Locator)
VALUES ('1ca96c96-cd2a-48b2-998f-a3fd0b98234e', '', '', 'https://msdn2.microsoft.com/en-us/vstudio/aa700831.aspx')
INSERT INTO dbo.Reference(ReferenceId, DocumentType, DocumentText, Locator)
VALUES ('f22e9a75-727c-4829-80dd-bbfdaaad49dc', '', '', 'https://www.microsoft.com/windows/embedded/about.mspx')
INSERT INTO dbo.Reference(ReferenceId, DocumentType, DocumentText, Locator)
VALUES ('3d5da450-28eb-4741-80a7-c748f72522a9', '', '', 'https://www.microsoft.com/windows/windowsmedia/default.mspx')
INSERT INTO dbo.Reference(ReferenceId, DocumentType, DocumentText, Locator)
VALUES ('6edd9142-ce7f-440d-9769-cde1ccbdf317', '', '', 'https://www.microsoft.com/windows/embedded/default.mspx')
INSERT INTO dbo.Reference(ReferenceId, DocumentType, DocumentText, Locator)
VALUES ('79bb7135-1516-43cb-9054-da83b9ecda29', '', '', 'http://members.microsoft.com/CustomerEvidence/search/EvidenceDetails.aspx?EvidenceID=13673&LanguageID=1')
INSERT INTO dbo.Reference(ReferenceId, DocumentType, DocumentText, Locator)
VALUES ('c387fdcc-cea9-45ce-90b8-e4ac1bd4cc28', '', '', 'https://msdn.microsoft.com/vstudio/')
INSERT INTO dbo.Reference(ReferenceId, DocumentType, DocumentText, Locator)
VALUES ('b4271f82-4ac5-4955-868e-f24d1b0f5bb1', '', '', 'https://www.microsoft.com/casestudies/casestudy.aspx?casestudyid=49271')
INSERT INTO dbo.Reference(ReferenceId, DocumentType, DocumentText, Locator)
VALUES ('6e862d8d-88e4-4d86-8119-ffc53db0a17a', '', '', 'https://blogs.msdn.com/adonet/archive/2006/09/27/ADONET_vNext_EDM_Designer.aspx')


INSERT INTO dbo.ReferenceDescriptor(DescriptorID, Annotation, Keyword, ReferenceID)
VALUES ('93790357-1fb2-4314-a26a-0187ad5ccb6f', 'The power of multimedia in Windows, DirectX gives you the best possible experience with graphics, sound, music, and 3-D animation.', 'DirectX', 'dbd5d613-990b-4280-b739-8d1ad4476a5f')
INSERT INTO dbo.ReferenceDescriptor(DescriptorID, Annotation, Keyword, ReferenceID)
VALUES ('b796b125-dc94-4a7a-86a2-10f3ac6ad0b3', 'Windows embedded', 'embedded', 'f22e9a75-727c-4829-80dd-bbfdaaad49dc')
INSERT INTO dbo.ReferenceDescriptor(DescriptorID, Annotation, Keyword, ReferenceID)
VALUES ('c13b2689-cb3a-4a2c-a4ca-14a1c8a02f71', 'Windows media', 'Windows Media', '3d5da450-28eb-4741-80a7-c748f72522a9')
INSERT INTO dbo.ReferenceDescriptor(DescriptorID, Annotation, Keyword, ReferenceID)
VALUES ('d4c4f616-cfb3-4799-889d-15cca8f7709f', 'Results:
ADO.NET
The designer in this CTP is an early prototype and only supports designing the “Conceptual” layer. The designer can also generate an Entity Data Model with 1:1 mappings from an existing database that you can use right away in your application while also graphically visualizing the “Conceptual” layer. Please take a look at the walkthroughs in the Overview document included with the Entity Data Model Designer prototype for more details.
https://blogs.msdn.com/adonet/archive/2006/09/27/ADONET_vNext_EDM_Designer.aspx

ADO.NET 2.0

https://msdn2.microsoft.com/en-us/data/aa937722.aspx

EDM
Generate an Entity Data Model with 1:1 mappings from an existing database that you can use right away in your application while also graphically visualizing the “Conceptual” layer. To aid brainstorming and to better understand typical developer scenarios, the ADO.NET team created an internal prototype of a designer to let developers model the ADO.NET vNext “Conceptual” layer.
https://blogs.msdn.com/adonet/archive/2006/09/27/ADONET_vNext_EDM_Designer.aspx

Entity Data Model 101
Most developers are familiar with the Object/Relational Mapping (ORM) problem: databases use the abstraction of rows in tables, but application programs use the abstraction of classes and objects. Existing ORM frameworks tend to address this mismatch by allowing programming classes to be annotated in order to relate them to the database. 
The intent with ADO.NET is more ambitious: We view the ORM problem as just one of a number of services we want to build on the database. Other services include reporting, synchronization, backup, and so on. In order to cover all of these services, we have designed a data model that is similar to the object-oriented idiom that programmers use, while remaining independent of any particular programming language or programming platform. This data model is the Entity Data Model (EDM).

https://blogs.msdn.com/adonet/archive/2007/01/30/entity-data-model-part-1.aspx
', 'Visual Studio pre-release product, '1ca96c96-cd2a-48b2-998f-a3fd0b98234e')
INSERT INTO dbo.ReferenceDescriptor(DescriptorID, Annotation, Keyword, ReferenceID)
VALUES ('e01d0af6-cc8c-4ccd-b1dd-17d2fac19878', 'The designer in this CTP is an early prototype and only supports designing the “Conceptual” layer. The designer can also generate an Entity Data Model with 1:1 mappings from an existing database that you can use right away in your application while also graphically visualizing the “Conceptual” layer. Please take a look at the walkthroughs in the Overview document included with the Entity Data Model Designer prototype for more details.', 'ADO.NET', '6e862d8d-88e4-4d86-8119-ffc53db0a17a')
INSERT INTO dbo.ReferenceDescriptor(DescriptorID, Annotation, Keyword, ReferenceID)
VALUES ('255291b6-6377-4b26-9cbd-3dd58d921ef0', 'ADO.NET', 'ADO.NET 2.0', '12b18fe1-be82-486c-b248-00183aad2c88')
INSERT INTO dbo.ReferenceDescriptor(DescriptorID, Annotation, Keyword, ReferenceID)
VALUES ('42598bdb-849a-4af9-96ee-61b8ecbc6931', 'Generate an Entity Data Model with 1:1 mappings from an existing database that you can use right away in your application while also graphically visualizing the “Conceptual” layer. To aid brainstorming and to better understand typical developer scenarios, the ADO.NET team created an internal prototype of a designer to let developers model the ADO.NET vNext “Conceptual” layer.', 'EDM', '6e862d8d-88e4-4d86-8119-ffc53db0a17a')
INSERT INTO dbo.ReferenceDescriptor(DescriptorID, Annotation, Keyword, ReferenceID)
VALUES ('4dd38a1f-6aad-412c-880b-72b83b686040', 'Hilton Hotels needed to develop a forecasting system to improve its business analysis process by establishing more accurate pricing and financial planning. It first created its OnQ Forecast Management System built using Microsoft® SQL Server™ 2000 to help forecast guestroom business. To extend the existing application, Hilton Hotels built a solution based on the Microsoft .NET Framework version 2.0 using the Microsoft Visual Studio® 2005 development system. Major solution components include: Microsoft SQL Server 2005 running on the Microsoft Windows Server™ 2003 operating system, both part of Microsoft Windows Server System™ integrated server software; and SQL Server 2005 Analysis Services, Reporting Services, and Integration Services. ', 'SQL Server', '79bb7135-1516-43cb-9054-da83b9ecda29')
INSERT INTO dbo.ReferenceDescriptor(DescriptorID, Annotation, Keyword, ReferenceID)
VALUES ('34a25e0e-1ed8-4d25-bc94-7c0da669c10a', 'Visual Studio is the development tool for creating drivers, applications and services across the Windows Embedded family of operating systems. Join the Visual Studio Community to get assistance with your coding projects.', 'embedded', '6edd9142-ce7f-440d-9769-cde1ccbdf317')
INSERT INTO dbo.ReferenceDescriptor(DescriptorID, Annotation, Keyword, ReferenceID)
VALUES ('cba41151-26f0-4d87-ab3a-9dab2f42b328', 'Most developers are familiar with the Object/Relational Mapping (ORM) problem: databases use the abstraction of rows in tables, but application programs use the abstraction of classes and objects. Existing ORM frameworks tend to address this mismatch by allowing programming classes to be annotated in order to relate them to the database. 
The intent with ADO.NET is more ambitious: We view the ORM problem as just one of a number of services we want to build on the database. Other services include reporting, synchronization, backup, and so on. In order to cover all of these services, we have designed a data model that is similar to the object-oriented idiom that programmers use, while remaining independent of any particular programming language or programming platform. This data model is the Entity Data Model (EDM).
', 'Entity Data Model 101', 'cfc4a592-296d-4b6f-b8fe-0e7a42b4a29a')
INSERT INTO dbo.ReferenceDescriptor(DescriptorID, Annotation, Keyword, ReferenceID)
VALUES ('5b7c783c-41a4-435a-8e18-b10851af1163', 'Microsoft DirectX is an advanced suite of multimedia application programming interfaces (APIs) built into Microsoft Windows; operating systems. DirectX provides a standard development platform for Windows-based PCs by enabling software developers to access specialized hardware features without having to write hardware-specific code.', 'DirectX', 'aad24f4c-c461-4d62-8723-6b52574311d1')
INSERT INTO dbo.ReferenceDescriptor(DescriptorID, Annotation, Keyword, ReferenceID)
VALUES ('485489f8-b5f8-4866-ad77-d8390c01a872', 'NASDAQ, which became the world’s first electronic stock market in 1971, and remains the largest U.S. electronic stock market, is constantly looking for more-efficient ways to serve its members. As the organization prepared to retire its aging Tandem mainframes, it deployed Microsoft® SQL Server™ 2005 on two 4-node Dell PowerEdge 6850 clusters to support its Market Data Dissemination System (MDDS). Every trade that is processed in the NASDAQ marketplace goes through the MDDS system, with SQL Server 2005 handling some 5,000 transactions per second at market open. SQL Server 2005 simultaneously handles about 100,000 queries a day, using SQL Server 2005 Snapshot Isolation to support real-time queries against the data without slowing the database. NASDAQ is enjoying a lower total cost of ownership compared to the Tandem Enscribe system that the SQL Server 2005 deployment has replaced.', 'SQL Server', '7b217f44-3ed0-492f-aaf6-8c064e3e8c75')
INSERT INTO dbo.ReferenceDescriptor(DescriptorID, Annotation, Keyword, ReferenceID)
VALUES ('c92409cd-4fa9-45e1-ba03-ff4b2386aa37', 'Pre-Release product 2 includes most of the products found in the Visual Studio product line. As with all prerelease software, we encourage you only to install these on a secondary machine, or in a virtual machine, as they are not supported by Microsoft Services support teams. As the goal of these previews is to gather feedback from the developer community, please use Microsoft Connect <http://connect.microsoft.com/visualstudio/> to report any issues, or to suggest improvements. MSDN Subscribers can also download these files from MSDN Subscriber Downloads <https://msdn2.microsoft.com/subscriptions/default.aspx>.', 'Visual Studio pre-release', '1ca96c96-cd2a-48b2-998f-a3fd0b98234e')


INSERT INTO dbo.ContactPerson(ContactPersonID, Email, FirstName, LastName, Title)
VALUES ('4887ae30-9820-408b-b4d7-061b7f1493b1', 'dankbac@adatum.com', 'Dan K', 'Bacon Jr.', 'Developer')
INSERT INTO dbo.ContactPerson(ContactPersonID, Email, FirstName, LastName, Title)
VALUES ('f8ff60e3-2b61-46d8-ac51-6a949f535127', 'kkelly@adatum.com', 'Kevin', 'Kelly', 'PM')
INSERT INTO dbo.ContactPerson(ContactPersonID, Email, FirstName, LastName, Title)
VALUES ('9a9d9c1c-0d70-4518-a279-937e272e6126', 'ravitart@adatum.com', 'Ravital', 'Artman', 'PUM')
INSERT INTO dbo.ContactPerson(ContactPersonID, Email, FirstName, LastName, Title)
VALUES ('1e08378d-51cb-4ca9-b39e-bd0679c85658', 'etienjac@adatum.com', 'Etienne P.', 'Jacques', 'Game Developer')
INSERT INTO dbo.ContactPerson(ContactPersonID, Email, FirstName, LastName, Title)
VALUES ('c6e87603-23ff-425f-9979-c0be2bd7f1c9', 'hodixon@adatum.com', 'Holly', 'Dixon', 'Programming Writer')
INSERT INTO dbo.ContactPerson(ContactPersonID, Email, FirstName, LastName, Title)
VALUES ('099380da-2ab8-4d45-a023-d137c885e6c9', 'bscholl@adatum.com', 'Boris', 'Scholl', 'Network Administrator')
INSERT INTO dbo.ContactPerson(ContactPersonID, Email, FirstName, LastName, Title)
VALUES ('bcc99ee4-b177-4183-82cd-d2977b21375e', 'jessicaarn@adatum.com', 'Jessica', 'Arnold', 'PM')


INSERT INTO dbo.ContactPersonReference(ContactPersonRefID, ContactPersonID, ReferenceID)
VALUES ('56872a7b-4df1-45c9-b32c-1f4cf70161a5', 'bcc99ee4-b177-4183-82cd-d2977b21375e', '3d5da450-28eb-4741-80a7-c748f72522a9')
INSERT INTO dbo.ContactPersonReference(ContactPersonRefID, ContactPersonID, ReferenceID)
VALUES ('70a2a910-8445-4583-9efa-32625f24b447', '4887ae30-9820-408b-b4d7-061b7f1493b1', '34bf3c5f-202a-45fe-af42-0a1d9bf489e2')
INSERT INTO dbo.ContactPersonReference(ContactPersonRefID, ContactPersonID, ReferenceID)
VALUES ('7bdf4546-baee-4d0e-8c75-403f363d30d9', 'c6e87603-23ff-425f-9979-c0be2bd7f1c9', '6e862d8d-88e4-4d86-8119-ffc53db0a17a')
INSERT INTO dbo.ContactPersonReference(ContactPersonRefID, ContactPersonID, ReferenceID)
VALUES ('c6b9bbd8-1c95-4e64-bef1-50ac841b6e66', '1e08378d-51cb-4ca9-b39e-bd0679c85658', 'aad24f4c-c461-4d62-8723-6b52574311d1')
INSERT INTO dbo.ContactPersonReference(ContactPersonRefID, ContactPersonID, ReferenceID)
VALUES ('b7af3437-9d6c-4e80-ba2a-5aad08f33bc9', '9a9d9c1c-0d70-4518-a279-937e272e6126', '3d5da450-28eb-4741-80a7-c748f72522a9')
INSERT INTO dbo.ContactPersonReference(ContactPersonRefID, ContactPersonID, ReferenceID)
VALUES ('a5901fb1-17ec-4151-9f66-689385f2cde2', 'f8ff60e3-2b61-46d8-ac51-6a949f535127', 'b4271f82-4ac5-4955-868e-f24d1b0f5bb1')
INSERT INTO dbo.ContactPersonReference(ContactPersonRefID, ContactPersonID, ReferenceID)
VALUES ('c7447067-46fc-46ae-9484-6bedbbb1bdce', 'bcc99ee4-b177-4183-82cd-d2977b21375e', '6e862d8d-88e4-4d86-8119-ffc53db0a17a')
INSERT INTO dbo.ContactPersonReference(ContactPersonRefID, ContactPersonID, ReferenceID)
VALUES ('21ec9fb4-eedb-469e-95b7-799ecea5a336', '099380da-2ab8-4d45-a023-d137c885e6c9', '4f267ad7-c1e8-469c-aff7-9a766952c40c')
INSERT INTO dbo.ContactPersonReference(ContactPersonRefID, ContactPersonID, ReferenceID)
VALUES ('9bf1b016-137a-4d64-83b8-a24dd43b0a7c', 'c6e87603-23ff-425f-9979-c0be2bd7f1c9', 'dbd5d613-990b-4280-b739-8d1ad4476a5f')
INSERT INTO dbo.ContactPersonReference(ContactPersonRefID, ContactPersonID, ReferenceID)
VALUES ('40c6579e-2e78-4442-877f-b88ff8d2146d', '4887ae30-9820-408b-b4d7-061b7f1493b1', '7d4a1c27-3046-4866-974f-81b1e4642719')
INSERT INTO dbo.ContactPersonReference(ContactPersonRefID, ContactPersonID, ReferenceID)
VALUES ('0d3591d5-ebcf-4f18-84a8-f2e6f464ffb5', '4887ae30-9820-408b-b4d7-061b7f1493b1', 'c387fdcc-cea9-45ce-90b8-e4ac1bd4cc28')
INSERT INTO dbo.ContactPersonReference(ContactPersonRefID, ContactPersonID, ReferenceID)
VALUES ('f27879b2-c2b7-4f2c-b0eb-f4aafe388345', '9a9d9c1c-0d70-4518-a279-937e272e6126', 'f22e9a75-727c-4829-80dd-bbfdaaad49dc')
INSERT INTO dbo.ContactPersonReference(ContactPersonRefID, ContactPersonID, ReferenceID)
VALUES ('c85f4e11-2060-4ab4-98e2-fc8ff33ecea0', '9a9d9c1c-0d70-4518-a279-937e272e6126', '6edd9142-ce7f-440d-9769-cde1ccbdf317')

См. также

Основные понятия

Средство Annotation and Research Collaboration Tool (образец приложения модели EDM)
Код приложения средства для заметок и исследований (образец приложения модели EDM)
Элемент Association (модель EDM)
Тип сущности (модель EDM)

Другие ресурсы

Спецификации модели EDM
Спецификация схем и сопоставлений (платформа Entity Framework)