Column.UpdateStatistics 方法 (StatisticsScanType, Int32, Boolean)

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

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 ( _
    scanType As StatisticsScanType, _
    sampleValue As Integer, _
    recompute As Boolean _
)
用法
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
)

参数

  • sampleValue
    类型: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
    类型: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.

注释

注意注意

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

示例

使用数据库对象

请参阅

参考

Column 类

UpdateStatistics 重载

Microsoft.SqlServer.Management.Smo 命名空间

其他资源

UPDATE STATISTICS (Transact-SQL)

统计信息