BulkInsertTask.KeepIdentity Property

Artikel
12/15/2008

Gets or sets a Boolean that specifies how identity value or values in the imported data file are used for the identity column

Namespace: Microsoft.SqlServer.Dts.Tasks.BulkInsertTask
Assembly : Microsoft.SqlServer.BulkInsertTask (in microsoft.sqlserver.bulkinserttask.dll)

Syntax

'Declaration
Public Property KeepIdentity As Boolean

public bool KeepIdentity { get; set; }

public:
virtual property bool KeepIdentity {
    bool get () sealed;
    void set (bool value) sealed;
}

/** @property */
public final boolean get_KeepIdentity ()

/** @property */
public final void set_KeepIdentity (boolean value)

public final function get KeepIdentity () : boolean

public final function set KeepIdentity (value : boolean)

Eigenschaftswert

true if identity value or values in the imported data file should be used for the identity column. true assigns the values that are specified in the source file to the identity column; false ignores the identity-column values that are specified in the source. The default value is true.

Hinweise

For more information, see Beibehalten von Identitätswerten beim Massenimport von Daten, or BULK INSERT (Transact-SQL).

Beispiel

The following example creates a BulkInsertTask, and then shows the default settings of the properties, including the KeepIdentity, by using the TaskHost. The example then sets two fields to demonstrate how to set field values.

using System;
using System.Collections.Generic;
using System.Text;
using Microsoft.SqlServer.Dts.Runtime;
using Microsoft.SqlServer.Dts.Tasks.BulkInsertTask;

namespace Microsoft.SqlServer.SSIS.Samples
{
    class Program
    {
        static void Main(string[] args)
        {
            Package pkg = new Package();
            Executable exec1 = pkg.Executables.Add("STOCK:BulkInsertTask");
            TaskHost th = exec1 as TaskHost;

            // List the default values of the Bulk Insert task
            // by using the Properties collection of the TaskHost.
            Console.WriteLine("BatchSize             {0}", th.Properties["BatchSize"].GetValue(th));
            Console.WriteLine("CheckConstraints      {0}", th.Properties["CheckConstraints"].GetValue(th));
            Console.WriteLine("CodePage              {0}", th.Properties["CodePage"].GetValue(th));
            Console.WriteLine("DataFileType          {0}", th.Properties["DataFileType"].GetValue(th));
            Console.WriteLine("DebugMode             {0}", th.Properties["DebugMode"].GetValue(th));
            Console.WriteLine("DestinationConnection {0}", th.Properties["DestinationConnection"].GetValue(th));
            Console.WriteLine("DestinationTableName  {0}", th.Properties["DestinationTableName"].GetValue(th));
            Console.WriteLine("FieldTerminator       {0}", th.Properties["FieldTerminator"].GetValue(th));
            Console.WriteLine("FireTriggers          {0}", th.Properties["FireTriggers"].GetValue(th));
            Console.WriteLine("FirstRow              {0}", th.Properties["FirstRow"].GetValue(th));
            Console.WriteLine("FormatFile            {0}", th.Properties["FormatFile"].GetValue(th));
            Console.WriteLine("KeepIdentity          {0}", th.Properties["KeepIdentity"].GetValue(th));
            Console.WriteLine("KeepNulls             {0}", th.Properties["KeepNulls"].GetValue(th));
            Console.WriteLine("LastRow               {0}", th.Properties["LastRow"].GetValue(th));
            Console.WriteLine("MaximumErrors         {0}", th.Properties["MaximumErrors"].GetValue(th));
            Console.WriteLine("RowTerminator         {0}", th.Properties["RowTerminator"].GetValue(th));
            Console.WriteLine("SortedData            {0}", th.Properties["SortedData"].GetValue(th));
            Console.WriteLine("SourceConnection      {0}", th.Properties["SourceConnection"].GetValue(th));
            Console.WriteLine("SqlStatement          {0}", th.Properties["SqlStatement"].GetValue(th));
            Console.WriteLine("SuspendRequired       {0}", th.Properties["SuspendRequired"].GetValue(th));
            Console.WriteLine("TableLock             {0}", th.Properties["TableLock"].GetValue(th));
            Console.WriteLine("UseFormatFile         {0}", th.Properties["UseFormatFile"].GetValue(th));

            Console.WriteLine("--------------------------");
            // Show how to set a property by using the TaskHost Properties.
            th.Properties["CheckConstraints"].SetValue(th, true);
            th.Properties["DataFileType"].SetValue(th, DTSBulkInsert_DataFileType.DTSBulkInsert_DataFileType_Native);
            Console.WriteLine("New value of CheckConstraints and DataFileType:  {0}, {1}", th.Properties["CheckConstraints"].GetValue(th), th.Properties["DataFileType"].GetValue(th));
        }
    }
}

Imports System
Imports System.Collections.Generic
Imports System.Text
Imports Microsoft.SqlServer.Dts.Runtime
Imports Microsoft.SqlServer.Dts.Tasks.BulkInsertTask
 
Namespace Microsoft.SqlServer.SSIS.Samples
    Class Program
        Shared  Sub Main(ByVal args() As String)
            Dim pkg As Package =  New Package() 
            Dim exec1 As Executable =  pkg.Executables.Add("STOCK:BulkInsertTask") 
            Dim th As TaskHost =  exec1 as TaskHost 
 
            ' List the default values of the Bulk Insert task
            ' by using the Properties collection of the TaskHost.
            Console.WriteLine("BatchSize             {0}", th.Properties("BatchSize").GetValue(th))
            Console.WriteLine("CheckConstraints      {0}", th.Properties("CheckConstraints").GetValue(th))
            Console.WriteLine("CodePage              {0}", th.Properties("CodePage").GetValue(th))
            Console.WriteLine("DataFileType          {0}", th.Properties("DataFileType").GetValue(th))
            Console.WriteLine("DebugMode             {0}", th.Properties("DebugMode").GetValue(th))
            Console.WriteLine("DestinationConnection {0}", th.Properties("DestinationConnection").GetValue(th))
            Console.WriteLine("DestinationTableName  {0}", th.Properties("DestinationTableName").GetValue(th))
            Console.WriteLine("FieldTerminator       {0}", th.Properties("FieldTerminator").GetValue(th))
            Console.WriteLine("FireTriggers          {0}", th.Properties("FireTriggers").GetValue(th))
            Console.WriteLine("FirstRow              {0}", th.Properties("FirstRow").GetValue(th))
            Console.WriteLine("FormatFile            {0}", th.Properties("FormatFile").GetValue(th))
            Console.WriteLine("KeepIdentity          {0}", th.Properties("KeepIdentity").GetValue(th))
            Console.WriteLine("KeepNulls             {0}", th.Properties("KeepNulls").GetValue(th))
            Console.WriteLine("LastRow               {0}", th.Properties("LastRow").GetValue(th))
            Console.WriteLine("MaximumErrors         {0}", th.Properties("MaximumErrors").GetValue(th))
            Console.WriteLine("RowTerminator         {0}", th.Properties("RowTerminator").GetValue(th))
            Console.WriteLine("SortedData            {0}", th.Properties("SortedData").GetValue(th))
            Console.WriteLine("SourceConnection      {0}", th.Properties("SourceConnection").GetValue(th))
            Console.WriteLine("SqlStatement          {0}", th.Properties("SqlStatement").GetValue(th))
            Console.WriteLine("SuspendRequired       {0}", th.Properties("SuspendRequired").GetValue(th))
            Console.WriteLine("TableLock             {0}", th.Properties("TableLock").GetValue(th))
            Console.WriteLine("UseFormatFile         {0}", th.Properties("UseFormatFile").GetValue(th))
 
            Console.WriteLine("--------------------------")
            ' Show how to set a property by using the TaskHost Properties.
            th.Properties("CheckConstraints").SetValue(th, True)
            th.Properties("DataFileType").SetValue(th, DTSBulkInsert_DataFileType.DTSBulkInsert_DataFileType_Native)
            Console.WriteLine("New value of CheckConstraints and DataFileType:  {0}, {1}", th.Properties("CheckConstraints").GetValue(th), th.Properties("DataFileType").GetValue(th))
 
        End Sub
    End Class
End Namespace

Sample Output:

BatchSize 0

CheckConstraints False

CodePage RAW

DataFileType 0

DebugMode False

DestinationConnection

DestinationTableName

FieldTerminator Tab

FireTriggers False

FirstRow 1

FormatFile

KeepIdentity False

KeepNulls False

LastRow 0

MaximumErrors 0

RowTerminator {CR}{LF}

SortedData

SourceConnection

SqlStatement System.String[]

SuspendRequired False

TableLock False

UseFormatFile False

--------------------------

New value of CheckConstraints and DataFileType: True, 1

Threadsicherheit

Any public static (Shared in Microsoft Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.

Plattformen

Entwicklungsplattformen

Eine Liste der unterstützten Plattformen finden Sie unterHardware- und Softwareanforderungen für die Installation von SQL Server 2005.

Zielplattforme