Share via

  • Article

Méthode PrefetchObjects (Type)

Prérécupère des objets de base de données d'un type spécifié.

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

Syntaxe

'Déclaration
Public Sub PrefetchObjects ( _
    objectType As Type _
)
'Utilisation
Dim instance As Database
Dim objectType As Type

instance.PrefetchObjects(objectType)

public void PrefetchObjects(
    Type objectType
)

public:
void PrefetchObjects(
    Type^ objectType
)

member PrefetchObjects : 
        objectType:Type -> unit 

public function PrefetchObjects(
    objectType : Type
)

Paramètres

Notes

This enables collections to be fully populated with objects by making one network trip to the instance of SQL Server. Prefetching is an optimization used when the whole collection of objects is required.

This method uses the default initialization of fields for prefetching database objects.

Exemples

VB

'Connect to the local, default instance of SQL Server.
Dim srv As Server
srv = New Server

'Reference the AdventureWorks2008R2 database.
Dim db As Database
db = srv.Databases("AdventureWorks2008R2")

'Assign the Table object type to a System.Type object variable.
Dim tb As Table
Dim typ As Type
tb = New Table
typ = tb.GetType

'Set scripting options.
Dim so As ScriptingOptions
so = New ScriptingOptions
so.AllowSystemObjects = True

'Prefetch all Table type objects, including system objects.
db.PrefetchObjects(typ, so)

PowerShell

$srv = new-Object Microsoft.SqlServer.Management.Smo.Server("(local)")
$db = New-Object Microsoft.SqlServer.Management.Smo.Database
$db = $srv.Databases.Item("AdventureWorks2008R2")

$tb = New-Object Microsoft.SqlServer.Management.Smo.Table
$typ = $tb.GetType()

$so = New-Object Microsoft.SqlServer.Management.Smo.ScriptingOptions
$so.AllowSystemObjects = $TRUE

$db.PrefetchObjects($typ, $so)

Write-Host $db.GetTransactionCount()