Méthode 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.

Espace de noms :  Microsoft.SqlServer.Management.Smo
Assembly :  Microsoft.SqlServer.Smo (en Microsoft.SqlServer.Smo.dll)

Syntaxe

'Déclaration
Public Sub UpdateStatistics ( _
    scanType As StatisticsScanType, _
    sampleValue As Integer, _
    recompute As Boolean _
)
'Utilisation
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
)

Paramètres

• scanType
  Type : Microsoft.SqlServer.Management.Smo.StatisticsScanType
  A StatisticsScanType that specifies the method used to update the statistics.

• sampleValue
  Type : System.Int32
  An Int32 value that specifies the sample value.

• recompute
  Type : System.Boolean
  A Boolean value that specifies whether to recomputed the index statistics or not.If True, the statistics are recomputed. Otherwise, False.

Notes

[!REMARQUE]

Indexes based partly on the UserDefinedTableType object do not support statistics and running this method will generate an exception.

Exemples

Création, modification et suppression d'index

Voir aussi

Référence

Index Classe

Surcharge UpdateStatistics

Espace de noms Microsoft.SqlServer.Management.Smo

Autres ressources

Index

UPDATE STATISTICS (Transact-SQL)