XML query evaluation: Execution plans and new operators.
XML查询计算：执行计划和新操作符。
Once the data is stored in the database as XML, the data can be queried very efficiently, as the XML is not parsed at runtime for query evaluation.
在数据库中以xml格式存储数据之后，可以非常高效地查询该数据，因为在运行时无需执行XML解析来实现查询计算。
XSIEQ(XML stream query with immediate evaluation), a kind of XML stream query system, can evaluate predicates immediately and output in time.
介绍了一种立即计算谓词并即时输出的XML流数据查询系统XSIEQ。
The change detection for XML document can be very useful to data storage of XML DW, pattern abstracting of document and incremental query evaluation.
XML文档的变化检测可以广泛应用于构建XML数据仓库中的数据存储、文档模式提取以及增量查询等方面。
XSIEQ(XML Stream Query with Immediate Evaluation) can evaluate predicates immediately and output in time.
XSIEQ是一种立即计算谓词并即时输出的XML流查询系统。
In order to speed up the query evaluation, we established the structured mapping for the XML data stored in RDB, and therefore, the frequency of join operations in SQL statement can be decreased.
为了加快查询的执行，我们对存放在关系库中的XML数据建立结构化映射，以减少SQL语句中连接操作的数目。
In order to speed up the query evaluation, we established the structured mapping for the XML data stored in RDB, and therefore, the frequency of join operations in SQL statement can be decreased.
为了加快查询的执行，我们对存放在关系库中的XML数据建立结构化映射，以减少SQL语句中连接操作的数目。
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