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IsDetachedPrimaryFile 方法

Verifies whether the specified file is a primary (.mdf) database file.

命名空间：  Microsoft.SqlServer.Management.Smo
程序集：  Microsoft.SqlServer.Smo（在 Microsoft.SqlServer.Smo.dll 中）

语法

声明
Public Function IsDetachedPrimaryFile ( _
    mdfName As String _
) As Boolean
用法
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

参数

返回值

类型：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.

示例

'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)