Метод Index.UpdateStatistics (StatisticsScanType, Int32, Boolean)
Updates statistics for the referenced index with the specified statistics scan type and specified sample size and with the option to recompute the statistics.
Пространство имен: Microsoft.SqlServer.Management.Smo
Сборка: Microsoft.SqlServer.Smo (в Microsoft.SqlServer.Smo.dll)
Синтаксис
'Декларация
Public Sub UpdateStatistics ( _
scanType As StatisticsScanType, _
sampleValue As Integer, _
recompute As Boolean _
)
'Применение
Dim instance As Index
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
)
Параметры
- scanType
Тип: Microsoft.SqlServer.Management.Smo.StatisticsScanType
A StatisticsScanType that specifies the method used to update the statistics.
- sampleValue
Тип: System.Int32
An Int32 value that specifies the sample value.
- recompute
Тип: System.Boolean
A Boolean value that specifies whether to recomputed the index statistics or not.If True, the statistics are recomputed. Otherwise, False.
Замечания
.gif "Примечание") Примечание |
|---|
Indexes based partly on the UserDefinedTableType object do not support statistics and running this method will generate an exception. |
Примеры
Создание, изменение и удаление индексов
См. также
Справочник
Пространство имен Microsoft.SqlServer.Management.Smo