Powershell WMI ROOT\MicrosoftExchangev2 和 WQL 用法
（PS 版本 1）
PS C:\> $query = 'Select * From Exchange_PublicFolder WHERE Path LIKE "/Foo%"'
PS C:\> $query
Select * From Exchange_PublicFolder WHERE Path LIKE "/Foo%"
PS C:\> gwmi -namespace ROOT\MicrosoftExchangev2 -query $query
Get-WmiObject : Provider is not capable of the attempted operation
At line:1 char:5
+ gwmi <<<< -namespace ROOT\MicrosoftExchangev2 -query $query
无论我是否尝试先将查询分配给变量，都没有什么区别。 WQL 关键字 WHERE 是否可能存在问题？ 我可以在没有它的情况下运行查询：
PS C:\> (gwmi -namespace ROOT\MicrosoftExchangev2 -query "Select * From Exchange_PublicFolder").count
711
稍后在管道中进行过滤并不是什么大问题，但我试图找出我在这里做错了什么:)
(PS Version 1)
PS C:\> $query = 'Select * From Exchange_PublicFolder WHERE Path LIKE "/Foo%"'
PS C:\> $query
Select * From Exchange_PublicFolder WHERE Path LIKE "/Foo%"
PS C:\> gwmi -namespace ROOT\MicrosoftExchangev2 -query $query
Get-WmiObject : Provider is not capable of the attempted operation
At line:1 char:5
+ gwmi <<<< -namespace ROOT\MicrosoftExchangev2 -query $query
It makes no difference if I try to assign the query to a variable first or not. Is there might be a problem with the WQL keyword WHERE? I can run a query without it just fine:
PS C:\> (gwmi -namespace ROOT\MicrosoftExchangev2 -query "Select * From Exchange_PublicFolder").count
711
It wouldn't be a huge deal to filter later in the pipeline, but I'm trying to figure out what I'm doing wrong here :)
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评论（1）
我不认为您做错了什么，只是提供程序无法处理您的查询（如错误所述）。 似乎不支持对任何属性使用 LIKE，您可以使用“=”，但这不是您正在寻找的:(。
IMO，在这种情况下，使用Where-Object 是可行的方法。
I don't think you're doing something wrong, it's just that the provider is not capable of processing your query (as the error states). It seems that using LIKE against any property is not supported, you can use "=" but it's not what you're looking for :(.
IMO, using Where-Object is the way to go in this case.