Freigeben über

  • Artikel

DetachDatabase-Methode (String, Boolean, Boolean)

Trennt die angegebene Datenbank von der SQL Server-Instanz. Optional können vor dem Trennen der Datenbank Statistiken aktualisiert werden.

Namespace:  Microsoft.SqlServer.Management.Smo
Assembly:  Microsoft.SqlServer.Smo (in Microsoft.SqlServer.Smo.dll)

Syntax

'Declaration
Public Sub DetachDatabase ( _
    databaseName As String, _
    updateStatistics As Boolean, _
    removeFulltextIndexFile As Boolean _
)
'Usage
Dim instance As Server
Dim databaseName As String
Dim updateStatistics As Boolean
Dim removeFulltextIndexFile As Boolean

instance.DetachDatabase(databaseName, _
    updateStatistics, removeFulltextIndexFile)

public void DetachDatabase(
    string databaseName,
    bool updateStatistics,
    bool removeFulltextIndexFile
)

public:
void DetachDatabase(
    String^ databaseName, 
    bool updateStatistics, 
    bool removeFulltextIndexFile
)

member DetachDatabase : 
        databaseName:string * 
        updateStatistics:bool * 
        removeFulltextIndexFile:bool -> unit 

public function DetachDatabase(
    databaseName : String, 
    updateStatistics : boolean, 
    removeFulltextIndexFile : boolean
)

Parameter

  • updateStatistics
    Typ: System. . :: . .Boolean
    Ein Boolean-Wert, der angibt, ob die Statistiken für die Datenbank vor dem Trennen aktualisiert werden sollen.
    Wenn der Wert True ist, werden die Statistiken aktualisiert.
    Wenn der Wert False ist, werden die Statistiken nicht aktualisiert.
  • removeFulltextIndexFile
    Typ: System. . :: . .Boolean
    Ein Boolean-Wert, der angibt, ob eine Volltextindex-Datei vor dem Trennen der Datenbank entfernt werden soll.
    Wenn der Wert True ist, wird die Volltextindex-Datei entfernt.
    Wenn der Wert False ist, wird die Volltextindex-Datei nicht entfernt.

Hinweise

The data and transaction log files of a database can be detached and then reattached to the same or another instance of SQL Server. Detaching and attaching a database is useful if you want to change the database to a different instance of SQL Server on the same computer, or if you want to move the database.

Beispiele

Visual Basic

'Connect to the local, default instance of SQL Server.
Dim srv As Server
srv = New Server
Dim owner As String
Dim logstr as String
Dim datastr as String
owner = srv.Databases("AdventureWorks2008R2").Owner

'Detach the AdventureWorks2008R2 database.
srv.DetachDatabase("AdventureWorks2008R2", False, False)

'Display information about the detached database.
Dim d As DataTable
Datastr = "C:\Program Files\Microsoft SQL Server"
Datastr = datastr + "\MSSQL10_50\MSSQL\Data\AdventureWorks2008R2_Data.mdf"
Logstr = "C:\Program Files\Microsoft SQL Server"
Logstr = datastr + "\MSSQL10_50\MSSQL\Data\AdventureWorks2008R2_Log.ldf"
d = srv.DetachedDatabaseInfo(datastr)
Dim r As DataRow
Dim c As DataColumn
For Each r In d.Rows
    Console.WriteLine("==========================")
    For Each c In r.Table.Columns
        Console.WriteLine(c.ColumnName + " = " + r[c].ToString)
    Next
Next

'Check whether the file is a detached primary file.
Console.WriteLine(srv.IsDetachedPrimaryFile(datastr))

'Attach the database
Dim sc As StringCollection
sc = New StringCollection
sc.Add(datastr)
sc.Add(logstr)
srv.AttachDatabase("AdventureWorks2008R2", sc, owner, AttachOptions.None)

PowerShell

$srv = new-object Microsoft.SqlServer.Management.Smo.Server("(local)")
$db = New-Object Microsoft.SqlServer.Management.Smo.Database
$db = $srv.Databases.Item("AdventureWorks2008R2")
$owner = $db.Owner
$srv.DetachDatabase("AdventureWorks2008R2", $FALSE, $FALSE)
$datastr = "C:\Program Files\Microsoft SQL Server"
$datastr = $datastr + "\MSSQL10_50\MSSQL\Data\AdventureWorks2008R2_Data.mdf"
$logstr = "C:\Program Files\Microsoft SQL Server"
$logstr = $logstr + "\MSSQL10_50\MSSQL\Data\AdventureWorks2008R2_Log.ldf"
$d = $srv.DetachedDatabaseInfo($datastr)
foreach ($r in $d.Rows)
{
   Write-Host "=========================="
   Foreach ($c in $d.Columns)
   {
      Write-Host $c.ColumnName "=" $r[$c].ToString()
   }
}
Write-Host $srv.IsDetachedPrimaryFile($datastr)
$sc = new-object Systems.Collections.Specialized.StringCollection
$sc.Add($datastr)
$sc.Add($logstr)
$srv.AttachDatabase("AdventureWorks2008R2", $sc, $owner, [Microsoft.SqlServer.Management.Smo.AttachOptions]::None)