DetachDatabase Method (String, Boolean, Boolean)

Server.DetachDatabase Method (String, Boolean, Boolean)

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

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

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


Type: System.String
A String value that specifies the name of the database to be detached.
Type: System.Boolean
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.
Type: System.Boolean
A Boolean value that specifies whether to remove a full-text index file before detaching the database.
If True, the full-text index file is removed.
If False, the full-text index file is not removed.

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.

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
    For Each c In r.Table.Columns
        Console.WriteLine(c.ColumnName + " = " + r[c].ToString)

'Check whether the file is a detached primary file.

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


$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
$srv.AttachDatabase("AdventureWorks2008R2", $sc, $owner, [Microsoft.SqlServer.Management.Smo.AttachOptions]::None)

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