Metodo 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.
Spazio dei nomi Microsoft.SqlServer.Management.Smo
Assembly: Microsoft.SqlServer.Smo (in Microsoft.SqlServer.Smo.dll)
Sintassi
'Dichiarazione
Public Sub UpdateStatistics ( _
scanType As StatisticsScanType, _
sampleValue As Integer, _
recompute As Boolean _
)
'Utilizzo
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
)
Parametri
- scanType
Tipo: Microsoft.SqlServer.Management.Smo.StatisticsScanType
A StatisticsScanType that specifies the method used to update the statistics.
- sampleValue
Tipo: System.Int32
An Int32 value that specifies the sample value.
- recompute
Tipo: System.Boolean
A Boolean value that specifies whether to recomputed the index statistics or not.If True, the statistics are recomputed. Otherwise, False.
Osservazioni
[!NOTA]
Indexes based partly on the UserDefinedTableType object do not support statistics and running this method will generate an exception.
Esempi
Creazione, modifica e rimozione di indici
Vedere anche
Riferimento
Spazio dei nomi Microsoft.SqlServer.Management.Smo