Поделиться через

  • Статья

Метод Execute

Runs the task.

Пространство имен:  Microsoft.SqlServer.Dts.Tasks.TransferSqlServerObjectsTask
Сборка:  Microsoft.SqlServer.TransferSqlServerObjectsTask (в Microsoft.SqlServer.TransferSqlServerObjectsTask.dll)

Синтаксис

'Декларация
Public Overrides Function Execute ( _
    connections As Connections, _
    variableDispenser As VariableDispenser, _
    events As IDTSComponentEvents, _
    log As IDTSLogging, _
    transaction As Object _
) As DTSExecResult
'Применение
Dim instance As TransferSqlServerObjectsTask
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

Параметры

  • transaction
    Тип: System. . :: . .Object
    The transaction object that the container is a part of. This value can be nullNothingnullptrunitпустая ссылка (Nothing в Visual Basic).

Возвращаемое значение

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

Замечания

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 run-time 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 Execute method is mainly used when you inherit and override it during creation of a custom task. For more information about how to override the Execute method, see Создание кода пользовательской задачи.

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

If no problems are 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 Nothing nullptr unit пустая ссылка (Nothing в 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.