IsDetachedPrimaryFile Method

后续版本的 Microsoft SQL Server 将删除该功能。 请避免在新的开发工作中使用该功能,并着手修改当前还在使用该功能的应用程序。

TheIsDetachedPrimaryFile method specifies whether a file is a detached primary database file.

语法

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);

注释

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.

注意注意

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.

Applies To: