This is the best option if you want to import the whole file, without needing to open it, to find out if that file contains only the logical or only the physical data model.
如果想导入整个文件，那么这是最好的选项，这样就不必打开该文件来查看它是只包含逻辑数据模型还是只包含物理数据模型。
This is the best option if you want to import the whole file, without needing to open it, to find out if that file contains only the logical or only the physical data model.
如果想导入整个文件，那么这是最好的选项，这样就不必打开该文件来查看它是只包含逻辑数据模型还是只包含物理数据模型。
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