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  • Articolo

Metodo UpdateStatistics (StatisticsScanType, Int32, Boolean)

Updates Statistic objects that monitor this column using a sampled scan.

Spazio dei nomi:  Microsoft.SqlServer.Management.Smo
Assembly:  Microsoft.SqlServer.Smo (in Microsoft.SqlServer.Smo.dll)

Sintassi

'Dichiarazione
Public Sub UpdateStatistics ( _
    scanType As StatisticsScanType, _
    sampleValue As Integer, _
    recompute As Boolean _
)
'Utilizzo
Dim instance As Column
Dim scanType As StatisticsScanType
Dim sampleValue As Integer
Dim recompute As Boolean

instance.UpdateStatistics(scanType, sampleValue, _
    recompute)

public void UpdateStatistics(
    StatisticsScanType scanType,
    int sampleValue,
    bool recompute
)

public:
void UpdateStatistics(
    StatisticsScanType scanType, 
    int sampleValue, 
    bool recompute
)

member UpdateStatistics : 
        scanType:StatisticsScanType * 
        sampleValue:int * 
        recompute:bool -> unit 

public function UpdateStatistics(
    scanType : StatisticsScanType, 
    sampleValue : int, 
    recompute : boolean
)

Parametri

  • sampleValue
    Tipo: System. . :: . .Int32
    An Int32 value that specifies the number of rows or percentage of the total number of rows to use in a sampled scan. This parameter is required only when the scanType indicates a sampled scan.
  • recompute
    Tipo: System. . :: . .Boolean
    A Boolean value that specifies whether the statistics will be automatically recomputed or not.
    If True, the statistics are automatically recomputed. Otherwise, False.

Osservazioni

[!NOTA]

Columns based on the UserDefinedTableType object cannot be modified and this method generates an exception.