项目
04/01/2012

实现全文搜索

全文搜索对于每个 SQL Server 实例都可用且在 SMO 中由 FullTextService 对象来表示。FullTextService 对象位于 Server 对象下。它用于管理 Microsoft 全文搜索服务的配置选项。FullTextCatalogCollection 对象属于 Database 对象，并且它是表示为数据库定义的全文目录的 FullTextCatalog 对象的集合。与普通索引不同，只能为每个表定义一个全文索引。此索引由 Table 对象中的 FullTextIndexColumn 对象表示。

若要创建全文搜索服务，必须为数据库定义一个全文目录，并为数据库的其中一个表定义一个全文搜索索引。

首先，通过调用 FullTextCatalog 构造函数并指定目录名称，为数据库创建全文目录。其次，通过调用该构造函数并指定要为其创建全文索引的表，创建全文索引。接着，通过使用 FullTextIndexColumn 对象并提供表中列的名称，可以为全文索引添加索引列。然后，为已创建的目录设置 CatalogName 属性。最后，调用 Create 方法并为 SQL Server 实例创建全文索引。

示例

若要使用所提供的任何代码示例，您必须选择创建应用程序所需的编程环境、编程模板和编程语言。有关详细信息，请参阅如何在 Visual Studio .NET 中创建 Visual Basic SMO 项目或如何在 Visual Studio .NET 中创建 Visual C# SMO 项目。

在 Visual Basic 中创建全文搜索服务

此代码示例为 AdventureWorks2008R2 示例数据库中的 ProductCategory 表创建全文搜索目录。然后，它会为 ProductCategory 表中的 Name 列创建全文搜索索引。全文搜索索引要求已为该列定义唯一索引。

' compile with: 
' /r:Microsoft.SqlServer.SqlEnum.dll 
' /r:Microsoft.SqlServer.Smo.dll 
' /r:Microsoft.SqlServer.ConnectionInfo.dll 
' /r:Microsoft.SqlServer.Management.Sdk.Sfc.dll

Imports Microsoft.SqlServer.Management.Smo
Imports Microsoft.SqlServer.Management.Sdk.Sfc
Imports Microsoft.SqlServer.Management.Common

Public Class A
   Public Shared Sub Main()
      ' Connect to the local, default instance of SQL Server.
      Dim srv As Server = Nothing
      srv = New Server()

      ' Reference the AdventureWorks database.
      Dim db As Database = Nothing
      db = srv.Databases("AdventureWorks")

      ' Reference the ProductCategory table.
      Dim tb As Table = Nothing
      tb = db.Tables("ProductCategory", "Production")

      ' Define a FullTextCatalog object variable by specifying the parent database and name arguments in the constructor.
      Dim ftc As FullTextCatalog = Nothing
      ftc = New FullTextCatalog(db, "Test_Catalog")
      ftc.IsDefault = True

      ' Create the Full-Text Search catalog on the instance of SQL Server.
      ftc.Create()

      ' Define a FullTextIndex object varaible by supplying the parent table argument in the constructor.
      Dim fti As FullTextIndex = Nothing
      fti = New FullTextIndex(tb)

      ' Define a FullTextIndexColumn object variable by supplying the parent index and column name arguements in the constructor.
      Dim ftic As FullTextIndexColumn = Nothing
      ftic = New FullTextIndexColumn(fti, "Name")

      ' Add the indexed column to the index.
      fti.IndexedColumns.Add(ftic)
      fti.ChangeTracking = ChangeTracking.Automatic

      ' Specify the unique index on the table that is required by the Full Text Search index.
      fti.UniqueIndexName = "AK_ProductCategory_Name"

      ' Specify the catalog associated with the index.
      fti.CatalogName = "Test_Catalog"

      ' Create the Full Text Search index on the instance of SQL Server.
      fti.Create()
   End Sub
End Class

在 Visual C# 中创建全文搜索服务

// compile with: 
// /r:Microsoft.SqlServer.SqlEnum.dll 
// /r:Microsoft.SqlServer.Smo.dll 
// /r:Microsoft.SqlServer.ConnectionInfo.dll 
// /r:Microsoft.SqlServer.Management.Sdk.Sfc.dll 

using Microsoft.SqlServer.Management.Smo;
using Microsoft.SqlServer.Management.Sdk.Sfc;
using Microsoft.SqlServer.Management.Common;

public class A {
   public static void Main() {
      // Connect to the local, default instance of SQL Server.
      Server srv = default(Server);
      srv = new Server();

      // Reference the AdventureWorks database.
      Database db = default(Database);
      db = srv.Databases ["AdventureWorks"];

      // Reference the ProductCategory table.
      Table tb = default(Table);
      tb = db.Tables["ProductCategory", "Production"];

      // Define a FullTextCatalog object variable by specifying the parent database and name arguments in the constructor.
      FullTextCatalog ftc = default(FullTextCatalog);
      ftc = new FullTextCatalog(db, "Test_Catalog");
      ftc.IsDefault = true;

      // Create the Full-Text Search catalog on the instance of SQL Server.
      ftc.Create();

      // Define a FullTextIndex object varaible by supplying the parent table argument in the constructor.
      FullTextIndex fti = default(FullTextIndex);
      fti = new FullTextIndex(tb);

      // Define a FullTextIndexColumn object variable by supplying the parent index and column name arguements in the constructor.
      FullTextIndexColumn ftic = default(FullTextIndexColumn);
      ftic = new FullTextIndexColumn(fti, "Name");

      // Add the indexed column to the index.
      fti.IndexedColumns.Add(ftic);
      fti.ChangeTracking = ChangeTracking.Automatic;

      // Specify the unique index on the table that is required by the Full Text Search index.
      fti.UniqueIndexName = "AK_ProductCategory_Name";

      // Specify the catalog associated with the index.
      fti.CatalogName = "Test_Catalog";

      // Create the Full Text Search index on the instance of SQL Server.
      fti.Create();
   }
}

在 PowerShell 中创建全文搜索服务

# Example of implementing a full text search on the default instance.
# Set the path context to the local, default instance of SQL Server and database tables

CD \sql\localhost\default\databases
$db = get-item AdventureWorks2008R2

CD AdventureWorks\tables

#Get a reference to the table
$tb = get-item Production.ProductCategory


# Define a FullTextCatalog object variable by specifying the parent database and name arguments in the constructor.

$ftc = New-Object -TypeName Microsoft.SqlServer.Management.SMO.FullTextCatalog -argumentlist $db, "Test_Catalog2"
$ftc.IsDefault = $true

# Create the Full Text Search catalog on the instance of SQL Server.
$ftc.Create()

# Define a FullTextIndex object variable by supplying the parent table argument in the constructor.
$fti = New-Object -TypeName Microsoft.SqlServer.Management.SMO.FullTextIndex -argumentlist $tb

#  Define a FullTextIndexColumn object variable by supplying the parent index 
#  and column name arguments in the constructor.

$ftic = New-Object -TypeName Microsoft.SqlServer.Management.SMO.FullTextIndexColumn -argumentlist $fti, "Name"

# Add the indexed column to the index.
$fti.IndexedColumns.Add($ftic)

# Set change tracking
$fti.ChangeTracking = [Microsoft.SqlServer.Management.SMO.ChangeTracking]::Automatic

# Specify the unique index on the table that is required by the Full Text Search index.
$fti.UniqueIndexName = "AK_ProductCategory_Name"

# Specify the catalog associated with the index.
$fti.CatalogName = "Test_Catalog2"

# Create the Full Text Search Index
$fti.Create()

通过

实现全文搜索

示例

在 Visual Basic 中创建全文搜索服务

在 Visual C# 中创建全文搜索服务

在 PowerShell 中创建全文搜索服务

其他资源