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UpdateStatistics 方法 (StatisticsTarget, StatisticsScanType, Int32, Boolean)

Updates the statistics for the table or view with the option to specify the target, the type of scan performed, the sample size, and whether to recompute the statistics.

命名空间：  Microsoft.SqlServer.Management.Smo
程序集：  Microsoft.SqlServer.Smo（在 Microsoft.SqlServer.Smo.dll 中）

语法

声明
Public Sub UpdateStatistics ( _
    affectType As StatisticsTarget, _
    scanType As StatisticsScanType, _
    sampleValue As Integer, _
    recompute As Boolean _
)
用法
Dim instance As TableViewBase
Dim affectType As StatisticsTarget
Dim scanType As StatisticsScanType
Dim sampleValue As Integer
Dim recompute As Boolean

instance.UpdateStatistics(affectType, _
    scanType, sampleValue, recompute)

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

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

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

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

参数

  • sampleValue
    类型：System. . :: . .Int32
    An Int32 value that specifies the sample size. The units are dependent on the scan type.
  • recompute
    类型：System. . :: . .Boolean
    A Boolean value that specifies whether to recompute the statistics.
    If True, the statistics are recomputed.
    If False, the statistics are not recomputed.