Méthode TableViewBase.UpdateStatistics (StatisticsTarget, StatisticsScanType, Int32, Boolean)

Updates the statistics for the table or view with the option to specify the target, the type of scan performed, the sample size, and whether 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 ( _
    affectType As StatisticsTarget, _
    scanType As StatisticsScanType, _
    sampleValue As Integer, _
    recompute As Boolean _
)
'Utilisation
Dim instance As TableViewBase 
Dim affectType As StatisticsTarget 
Dim scanType As StatisticsScanType 
Dim sampleValue As Integer 
Dim recompute As Boolean

instance.UpdateStatistics(affectType, _
    scanType, sampleValue, recompute)

public void UpdateStatistics(
    StatisticsTarget affectType,
    StatisticsScanType scanType,
    int sampleValue,
    bool recompute
)

public:
void UpdateStatistics(
    StatisticsTarget affectType, 
    StatisticsScanType scanType, 
    int sampleValue, 
    bool recompute
)

member UpdateStatistics : 
        affectType:StatisticsTarget * 
        scanType:StatisticsScanType * 
        sampleValue:int * 
        recompute:bool -> unit

public function UpdateStatistics(
    affectType : StatisticsTarget, 
    scanType : StatisticsScanType, 
    sampleValue : int, 
    recompute : boolean
)

Paramètres

• affectType
  Type : Microsoft.SqlServer.Management.Smo.StatisticsTarget
  A StatisticsTarget object value that specifies the target of the statistics update, such as columns or indexes.

• scanType
  Type : Microsoft.SqlServer.Management.Smo.StatisticsScanType
  A StatisticsScanType object value that specifies the way in which statistical information is gathered.

• sampleValue
  Type : System.Int32
  An Int32 value that specifies the sample size. The units are dependent on the scan type.

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

Exemples

Utilisation des objets de base de données

Voir aussi

Référence

TableViewBase Classe

Surcharge UpdateStatistics

Espace de noms Microsoft.SqlServer.Management.Smo

Autres ressources

Tables

Vues

CREATE TABLE (Transact-SQL)

CREATE VIEW (Transact-SQL)

UPDATE STATISTICS (Transact-SQL)