IsDetachedPrimaryFile Method

發行項
12/15/2008

未來的 Microsoft SQL Server 發行版本將不再提供此功能。請避免在新的開發工作中使用此功能，並計劃修改目前使用此功能的應用程式。

The IsDetachedPrimaryFile method specifies whether a file is a detached primary database file.

語法

object
.IsDetachedPrimaryFile(
MDFName
)
as Boolean

Parts

object
Expression that evaluates to an object in the Applies To list.

MDFName
String that contains the name of the primary Microsoft SQL Server database or log file.

Prototype (C/C++)

HRESULT IsDetachedPrimaryFile(
SQLDMO_LPCSTR MDFName, 
LPBOOL pRetVal);

備註

Prior to calling IsDetachedPrimaryFile, an application should call the ListDetachedDBFiles property to retrieve a complete list of detached database files or ListDetachedLogFiles property to retrieve a complete list of detached log files. The application can then call IsDetachedPrimaryFile to determine which of the files is the primary file.

附註：
If an application calls IsDetachedPrimaryFile on an instance of SQL Server version 7.0, the constant, SQLDMO_E_SQL80ONLY, and the message "This property or method requires Microsoft SQL Server 2000 or later" are returned.