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09/24/2010

UpdateStatistics 方法 (StatisticsScanType, Int32, Boolean)

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

命名空間： Microsoft.SqlServer.Management.Smo
組件： Microsoft.SqlServer.Smo (在 Microsoft.SqlServer.Smo.dll 中)

語法

'宣告
Public Sub UpdateStatistics ( _
    scanType As StatisticsScanType, _
    sampleValue As Integer, _
    recompute As Boolean _
)
'用途
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
)

參數

scanType
型別：Microsoft.SqlServer.Management.Smo. . :: . .StatisticsScanType
A StatisticsScanType object value that specifies the type operation to perform during the creation or update of a Statistic object.

sampleValue
型別：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
型別：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.