This means that when someone asks for an order, the JPA engine will fetch all the line items that are associated with the order as well.

这意味着，当有人请求订单时，JPA引擎还将获取与该订单相关的所有行项目。

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By the way, a near transpose of the command line allows you to fetch and extract an archive created on the remote computer to your local computer. Here is that solution, run from the local machine.

顺便提一下，对该命令行中内容的顺序稍作颠倒，您就可以从远程计算机中获取创建的存档并解压到本地计算机。

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Depending on your line of business, your logic might do many things as database changes come through the export, before you send or fetch data to or from the database via the import.

根据您的业务部门不同，在数据库更改经过导入时，并在通过导入将数据发送到数据库或从数据库获取数据之前，逻辑可能要执行许多操作。

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