EXist XML database: Download the eXist database, an open source database-management system that stores XML data according to the XML data model and features efficient, index-based XQuery processing.

eXist XML数据库：下载eXist数据库，一个开源数据库管理系统，它根据XML数据模型存储XML数据，并以高效、基于索引的XQuery处理著称。

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With eXist, you can store XML data according to the XML data model and get efficient, index-based XQuery processing.

借助 eXist，可以根据 XML 数据模型存储 XML 数据，并获得高效、基于索引的 XQuery 处理。

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We examine each row in turn, obtaining a model index for the first item in each row, and read the data stored for that item in the model.

我们按顺序逐行检查，获得每行第一个项的模型索引，然后读取存储在模型项里的数据。

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