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Método ScriptTask.Execute

  • Artigo

Executes the script contained in this instance of DTS Script Task.

Namespace:  Microsoft.SqlServer.Dts.Tasks.ScriptTask
Assembly:  Microsoft.SqlServer.ScriptTask (em Microsoft.SqlServer.ScriptTask.dll)

Sintaxe

'Declaração
Public Overrides Function Execute ( _
    connections As Connections, _
    variableDispenser As VariableDispenser, _
    events As IDTSComponentEvents, _
    log As IDTSLogging, _
    transaction As Object _
) As DTSExecResult
'Uso
Dim instance As ScriptTask 
Dim connections As Connections 
Dim variableDispenser As VariableDispenser 
Dim events As IDTSComponentEvents 
Dim log As IDTSLogging 
Dim transaction As Object 
Dim returnValue As DTSExecResult 

returnValue = instance.Execute(connections, _
    variableDispenser, events, log, transaction)

public override DTSExecResult Execute(
    Connections connections,
    VariableDispenser variableDispenser,
    IDTSComponentEvents events,
    IDTSLogging log,
    Object transaction
)

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

abstract Execute : 
        connections:Connections * 
        variableDispenser:VariableDispenser * 
        events:IDTSComponentEvents * 
        log:IDTSLogging * 
        transaction:Object -> DTSExecResult  
override Execute : 
        connections:Connections * 
        variableDispenser:VariableDispenser * 
        events:IDTSComponentEvents * 
        log:IDTSLogging * 
        transaction:Object -> DTSExecResult

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

Parâmetros

  • transaction
    Tipo: System.Object
    The transaction object that the container is a part of. The runtime provides the transaction for the container, based on the TransactionOption property. This value can be nulluma referência nula (Nothing no Visual Basic).

Valor de retorno

Tipo: Microsoft.SqlServer.Dts.Runtime.DTSExecResult
A value from the DTSExecResult enumeration.

Comentários

The Execute method is inherited by task hosts and other objects from the Executable abstract class, through the DtsContainer class, and enables the inheriting objects to be run by the run-time engine. The Execute method inherited by the individual objects is not ordinarily used in code, and you should call the Execute method if you have to run tasks or containers in the package. However, the Execute method is available on individual objects if you find a unique circumstance where it is required.

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 calls the Execute method for each task and object in the package.

Pass nulluma referência nula (Nothing no Visual Basic) 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.

Exemplos

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

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 execution.
            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 execution.
            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

Consulte também

Referência

ScriptTask Classe

Namespace Microsoft.SqlServer.Dts.Tasks.ScriptTask