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DMQueryTask.Execute Method

  • 아티클

Runs the task.

네임스페이스: Microsoft.SqlServer.Dts.Tasks.DMQueryTask
어셈블리: Microsoft.SqlServer.DMQueryTask (in microsoft.sqlserver.dmquerytask.dll)

구문

‘선언
Public Overrides Function Execute ( _
    connections As Connections, _
    variables As VariableDispenser, _
    events As IDTSComponentEvents, _
    log As IDTSLogging, _
    txn As Object _
) As DTSExecResult

public override DTSExecResult Execute (
    Connections connections,
    VariableDispenser variables,
    IDTSComponentEvents events,
    IDTSLogging log,
    Object txn
)

public:
virtual DTSExecResult Execute (
    Connections^ connections, 
    VariableDispenser^ variables, 
    IDTSComponentEvents^ events, 
    IDTSLogging^ log, 
    Object^ txn
) override

public DTSExecResult Execute (
    Connections connections, 
    VariableDispenser variables, 
    IDTSComponentEvents events, 
    IDTSLogging log, 
    Object txn
)

public override function Execute (
    connections : Connections, 
    variables : VariableDispenser, 
    events : IDTSComponentEvents, 
    log : IDTSLogging, 
    txn : Object
) : DTSExecResult

매개 변수

  • connections
    A collection of connections used by the task.
  • log
    An object that implements the IDTSLogging interface.
  • txn
    The transaction object that the container is a part of. This value can be null.

반환 값

A value from the DTSExecResult enumeration.

주의

The Execute method is inherited by task hosts and other objects from the Executable abstract class, through the DtsContainer class, and allows the inheriting objects to be run by the runtime engine. The Execute method inherited by the individual objects is not commonly used in code, and it is recommended that you call the Execute method if you need to run any of the tasks or containers in the package. However, the Execute method is available on individual objects should you find a unique circumstance where it is needed.

The main use of the Execute method is for it to be inherited and overridden when you create a custom task. For more information about how to override the Execute method, see Implementing the Execute Method in Custom Integration Services Tasks.

The Execute method calls the Validate method implicitly before the package runs. All tasks in the package are reviewed for appropriate settings during validation, and all objects in the package are reviewed, including the package, containers, and other components in the package.

If there are no problems encountered in the validation phase that would cause the package to fail, the package object proceeds to call the Execute method for each task and object in the package.

Pass null for the transaction parameter when the TransactionOption property is false. If the TransactionOption property is true, you can pass null in the transaction parameter to indicate that the container supports transactions but does not participate.

예

The following code example shows how to run a package containing a BulkInsertTask after some of the task properties are set. The Bulk Insert task is an example for this code sample; any task can be created in its place.

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 p = new Package();
            p.InteractiveMode = true;
            p.OfflineMode = true;
            Executable exec1 = pkg.Executables.Add("STOCK:BulkInsertTask");
            TaskHost th = exec1 as TaskHost;

            // Set the CheckConstraints and DataFileType properties.           
            th.Properties["CheckConstraints"].SetValue(th, true);
            th.Properties["DataFileType"].SetValue(th, DTSBulkInsert_DataFileType.DTSBulkInsert_DataFileType_Native);
           
            // Run the package that contains the task.
            pkg.Execute();

            // Review the results of the run.
            if (taskH.ExecutionResult == DTSExecResult.Failure || taskH.ExecutionStatus == DTSExecStatus.Abend)
                Console.WriteLine("Task failed or abended");
            else
                Console.WriteLine("Task ran successfully");
        }
    }
}

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 p As Package =  New Package() 
            p.InteractiveMode = True
            p.OfflineMode = True
            Dim exec1 As Executable =  pkg.Executables.Add("STOCK:BulkInsertTask") 
            Dim th As TaskHost =  exec1 as TaskHost 
 
            ' Set the CheckConstraints and DataFileType properties.           
            th.Properties("CheckConstraints").SetValue(th, True)
            th.Properties("DataFileType").SetValue(th, DTSBulkInsert_DataFileType.DTSBulkInsert_DataFileType_Native)
 
            ' Run the package that contains the task.
            pkg.Execute()
 
            ' Review the results of the run.
            If taskH.ExecutionResult = DTSExecResult.Failure Or taskH.ExecutionStatus = DTSExecStatus.Abend Then
                Console.WriteLine("Task failed or abended")
            Else 
                Console.WriteLine("Task ran successfully")
            End If
        End Sub
    End Class
End Namespace

스레드 보안

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.

플랫폼

개발 플랫폼

지원되는 플랫폼 목록은 SQL Server 2005 설치를 위한 하드웨어 및 소프트웨어 요구 사항을 참조하십시오.

대상 플랫폼

지원되는 플랫폼 목록은 SQL Server 2005 설치를 위한 하드웨어 및 소프트웨어 요구 사항을 참조하십시오.

참고 항목

참조

DMQueryTask Class
DMQueryTask Members
Microsoft.SqlServer.Dts.Tasks.DMQueryTask Namespace