在WQL对服务器返回安装的驱动器

Question

我想创建一个简单的WQL查询，我只在服务器上安装返回驱动器。这些是不具有与它们相关联的驱动器号的驱动器。

我尝试以下sytnax，它不返回一个结果集：

SELECT * FROM Win32_Volume WHERE DriveLetter = ""

下面是在C＃的完整代码示例：

string ManagementPath = string.Format(@"\\{0}\root\CIMV2", txtServerName.Text);
ConnectionOptions DriveConnOptions = new ConnectionOptions();
ObjectQuery oq = new ObjectQuery(@"SELECT * FROM Win32_Volume WHERE DriveLetter = """"");
ManagementScope Scope = new ManagementScope(ManagementPath, DriveConnOptions);
ManagementObjectSearcher Searcher = new ManagementObjectSearcher(Scope, oq);
ManagementObjectCollection collection = Searcher.Get();
foreach (ManagementObject mo in collection)
{
    //do something...
}

Answer 1

我需要我的WQL语句更改为：

SELECT * FROM Win32_Volume WHERE DriveLetter IS NULL