Server.DetachDatabase Method (String, Boolean)

Articolo
12/15/2008

Detaches the specified database from the instance of Microsoft SQL Server with the option to update statistics before the database is detached.

Spazio dei nomi: Microsoft.SqlServer.Management.Smo
Assembly : Microsoft.SqlServer.Smo (in microsoft.sqlserver.smo.dll)

Sintassi

'Dichiarazione
Public Sub DetachDatabase ( _
    databaseName As String, _
    updateStatistics As Boolean _
)

public void DetachDatabase (
    string databaseName,
    bool updateStatistics
)

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

public void DetachDatabase (
    String databaseName, 
    boolean updateStatistics
)

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

Parametri

databaseName
A String value that specifies the name of the database to be detached.

updateStatistics
A Boolean value that specifies whether to update the statistics for the database before detaching it.

If True, statistics are updated.

If False, statistics are not updated.

Osservazioni

Testo aggiornato:

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.

Questo spazio dei nomi, classe o membro è supportato solo nella versione 2.0 di Microsoft .NET Framework.

Esempio

'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("AdventureWorks").Owner

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

'Display information about the detached database.
Dim d As DataTable
Datastr = "C:\Program Files\Microsoft SQL Server"
Datastr = datastr + "\MSSQL.1\MSSQL\Data\AdventureWorks_Data.mdf"
Logstr = "C:\Program Files\Microsoft SQL Server"
Logstr = datastr + "\MSSQL.1\MSSQL\Data\AdventureWorks_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("AdventureWorks", sc, owner, AttachOptions.None)

Thread Safety

Any public static (Shared in Microsoft Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.

Piattaforme

Piattaforme di sviluppo

Per un elenco delle piattaforme supportate, vedere Requisiti hardware e software per l'Installazione di SQL Server 2005.

Piattaforme di destinazione

Per un elenco delle piattaforme supportate, vedere Requisiti hardware e software per l'Installazione di SQL Server 2005.

Vedere anche

Riferimento

Server Class
Server Members
Microsoft.SqlServer.Management.Smo Namespace

Altre risorse

How to: Use an SMO Method with a Parameter in Visual Basic .NET
Scollegamento e collegamento di database
Calling Methods
Gestione dei server
Scollega database (pagina Generale)

Condividi tramite