You would do this if the application is responsible for using a unique name and if the application will append further records to the file.

如果应用程序负责使用唯一名称且应用程序会进一步向文件追加记录，您将使用此方法。

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As work progresses in a transaction, an application can append the undo information and reserve space for compensation records.

当工作在交易中进行时，应用程序可以附加复原资讯并保留补偿记录的空间。

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