查询分解 meaning in English
decomposition of queries
decomposition of query
query decomposition
Examples
- Semantic analyse of data request , query decomposition and conversion rules are introduced in detail
详细介绍了数据交换引擎中数据请求的语义分析、查询分解、构建转换规则等功能模块的作用及工作原理。 - Query processing is one of the key techniques in information integration . the dissertation introduces query decomposing , query optimization , query scheduler , sub - query combination
在查询处理的基本体系结构基础之上,本文重点介绍了查询分解、查询优化、查询调度以及子查询合并。 - This paper introduces the research of data integration based on xml , which is applied on civil aircraft . it focuses on heterogeneous schema integration and query decomposing in this area , then develops a prototype
本文以民用飞机多数据源集成为背景,进行基于xml异构数据源集成研究,重点解决异构数据源模式集成、查询分解转换等问题并且开发了原型系统。 - 2 . the xpath query based on global schema is decomposed into many queries based on local schema , and xpath will be mapped into sql and then results from data sources will be transformed into xml . 3
2 .将基于全局模式的xpath查询分解为针对个局部数据源的查询,同时介绍了将xpath查询转换为关系数据库所能执行的sql查询,并且描述如何将查询结果转化为xml格式。 - The path - based approaches break down a query into a set of paths , and join the original joint nodes , but this type of methods usually produce large middle result , therefore seriously reduce query efficiency
基于路径匹配的方法通常将一个查询分解为一组路径,然后连接原来分支连接处的节点,然而该类型的结构连接方法通常导致庞大的中间结果,从而将严重影响查询处理效率。