Metodo SetNull
Assigns nullNothingnullptrunitriferimento Null (Nothing in Visual Basic). to a buffer column.
Spazio dei nomi Microsoft.SqlServer.Dts.Pipeline
Assembly: Microsoft.SqlServer.PipelineHost (in Microsoft.SqlServer.PipelineHost.dll)
Sintassi
'Dichiarazione
Public Sub SetNull ( _
columnIndex As Integer _
)
'Utilizzo
Dim instance As PipelineBuffer
Dim columnIndex As Integer
instance.SetNull(columnIndex)
public void SetNull(
int columnIndex
)
public:
void SetNull(
int columnIndex
)
member SetNull :
columnIndex:int -> unit
public function SetNull(
columnIndex : int
)
Parametri
- columnIndex
Tipo: System. . :: . .Int32
The index of the column in the buffer row.
Osservazioni
The SetNull method assigns null Nothing nullptr unit riferimento Null (Nothing in Visual Basic). to the buffer column specified by the columnIndex parameter.
This method works with the DT_NULL data type in Integration Services.
You can use the SetNull method to insert a null value into a column of any type except for the BLOB data types:
For a complete list of Integration Services data types and the corresponding Get and Set methods of the PipelineBuffer class to use with each type, see Utilizzo di tipi di dati nel flusso di dati.