IsDetachedPrimaryFile 方法
Verifies whether the specified file is a primary (.mdf) database file.
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
- mdfName
型別：System. . :: . .String
A String value that specifies the name of the data file.
傳回值
型別：System. . :: . .Boolean
A Boolean value that specifies whether the data file is a primary database file.
If True, the data file is a primary database file.
If False, the data file is not a primary database file.
範例
'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 + "\MSSQL10\MSSQL\Data\AdventureWorks_Data.mdf"
Logstr = "C:\Program Files\Microsoft SQL Server"
Logstr = datastr + "\MSSQL10\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)