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IsDetachedPrimaryFile 方法

驗證指定的檔案是否為主要 (.mdf) 資料庫檔案。

命名空間：  Microsoft.SqlServer.Management.Smo
組件：  Microsoft.SqlServer.Smo (在 Microsoft.SqlServer.Smo.dll 中)

語法

'宣告
Public Function IsDetachedPrimaryFile ( _
    mdfName As String _
) As Boolean
'用途
Dim instance As Server
Dim mdfName As String
Dim returnValue As Boolean

returnValue = instance.IsDetachedPrimaryFile(mdfName)

public bool IsDetachedPrimaryFile(
    string mdfName
)

public:
bool IsDetachedPrimaryFile(
    String^ mdfName
)

member IsDetachedPrimaryFile : 
        mdfName:string -> bool 

public function IsDetachedPrimaryFile(
    mdfName : String
) : boolean

參數

傳回值

型別：System. . :: . .Boolean
Boolean 值，指定資料檔案是否為主資料庫檔案。
如果為 True，則表示資料檔案為主資料庫檔案。
如果為 False，則表示資料檔案並非主資料庫檔案。

範例

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)