Querying a local database can be a slow process, especially if you have many rows of data or you need to start running complex queries that join multiple tables.

查询本地数据库是一个比较慢的过程，特别是，如果您有多行数据或者您需要在多个表之间运行复杂的查询语句。

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Querying local XML data and nicknames with xquery.

用XQuery查询本地XML数据和昵称。

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The current draft spec from the working group includes definitions for a Database object for accessing and querying a local data store.

该草案当前版本包含了对访问数据库对象和查询本地数据存储的定义。

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