UpdateStatistics 方法 (StatisticsTarget, StatisticsScanType, Int32)
Updates the statistics for the table or view with the option to specify the target, the type of scan performed, and the sample size.
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 _
)
用法
Dim instance As TableViewBase
Dim affectType As StatisticsTarget
Dim scanType As StatisticsScanType
Dim sampleValue As Integer
instance.UpdateStatistics(affectType, _
scanType, sampleValue)
public void UpdateStatistics(
StatisticsTarget affectType,
StatisticsScanType scanType,
int sampleValue
)
public:
void UpdateStatistics(
StatisticsTarget affectType,
StatisticsScanType scanType,
int sampleValue
)
member UpdateStatistics :
affectType:StatisticsTarget *
scanType:StatisticsScanType *
sampleValue:int -> unit
public function UpdateStatistics(
affectType : StatisticsTarget,
scanType : StatisticsScanType,
sampleValue : int
)
参数
- affectType
类型:Microsoft.SqlServer.Management.Smo. . :: . .StatisticsTarget
A StatisticsTarget object value that specifies the target of the statistics update, such as columns or indexes.
- scanType
类型:Microsoft.SqlServer.Management.Smo. . :: . .StatisticsScanType
A StatisticsScanType object value that specifies the way in which statistical information is gathered.
- sampleValue
类型:System. . :: . .Int32
An Int32 value that specifies the sample size. The units are dependent on the scan type.