Bulk uploading of content from any text based file.

可以大批量上传任何基于文本的文件的内容。

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For this, you need to keep a log; bulk load and import programs often log to a file, but inside the database you need to use a table.

为此，需要维护一个日志；批量装载和导入程序常常将日志写入一个文件，但是在数据库中需要使用一个表。

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Simple properties of items can be primitive data types, such as integers and strings, or a special data type called content, which is used to store bulk data such as the bytes of a file.

简单的项属性可以是基元数据类型，例如整数或字符串，或者是称为内容的特殊数据类型，这种数据类型用于存储诸如文件字节等批量数据。

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