Index.UpdateStatistics-Methode (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.
Namespace: Microsoft.SqlServer.Management.Smo
Assembly: Microsoft.SqlServer.Smo (in Microsoft.SqlServer.Smo.dll)
Syntax
'Declaration
Public Sub UpdateStatistics ( _
scanType As StatisticsScanType, _
sampleValue As Integer, _
recompute As Boolean _
)
'Usage
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
)
Parameter
- scanType
Typ: Microsoft.SqlServer.Management.Smo.StatisticsScanType
A StatisticsScanType that specifies the method used to update the statistics.
- sampleValue
Typ: System.Int32
An Int32 value that specifies the sample value.
- recompute
Typ: System.Boolean
A Boolean value that specifies whether to recomputed the index statistics or not.If True, the statistics are recomputed. Otherwise, False.
Hinweise
.gif "Hinweis") Hinweis |
|---|
Indexes based partly on the UserDefinedTableType object do not support statistics and running this method will generate an exception. |
Beispiele
Erstellen, Ändern und Löschen von Indizes
Siehe auch
Verweis
Microsoft.SqlServer.Management.Smo-Namespace