subquery in from must have an alias怎么解决

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  • subquery in from must have an alias

    从中选择一个别名

    Any select list item that is not a simple column reference must have an alias.

    任何不是简单列引用的选择列表项都必须有别名.

    You must have an audio device in order to encode from device.

    要从设备编码,必须有一个音频设备.

    You must have an audio device in order to encode.

    您必须具有音频设备以进行编码.