Méthode Column.UpdateStatistics (StatisticsScanType, Int32, Boolean)
Updates Statistic objects that monitor this column using a sampled scan.
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 Column
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 object value that specifies the type operation to perform during the creation or update of a Statistic object.
- sampleValue
Type : System.Int32
An Int32 value that specifies the number of rows or percentage of the total number of rows to use in a sampled scan. This parameter is required only when the scanType indicates a sampled scan.
- recompute
Type : System.Boolean
A Boolean value that specifies whether the statistics will be automatically recomputed or not.If True, the statistics are automatically recomputed. Otherwise, False.
Notes
[!REMARQUE]
Columns based on the UserDefinedTableType object cannot be modified and this method generates an exception.
Exemples
Utilisation des objets de base de données
Voir aussi
Référence
Espace de noms Microsoft.SqlServer.Management.Smo