Programmers can work transparently with data from these various sources, relying on DB2 II's global query optimizer to select an efficient data access strategy for such work.
程序员可以透明地使用来自这些不同数据源的数据，并通过DB2II全局查询优化器来选择一个有效的数据访问策略。
Parsing of global query generates a query tree.
查询语句解析产生查询树。
Decomposition and optimization of global query is one of hard problems in heterogeneous database integration.
全局查询的分解与优化是异构数据库的集成中许多难题之一。
Query processing contains parsing of global query, binding of query variable, decomposition of query and rewriting of query.
查询处理包括全局查询语句解析、查询变量绑定、查询分解和查询重写。
This paper proposes a global query optimization algorithm based on a faster decomposition-based simulated annealing algorithm.
文章提出了一种基于快速分解模拟退火算法的全局查询优化算法。
The purpose of the thesis is to investigate the energy efficient local query and global query protocols for wireless sensor networks (WSN).
针对不同的查询要求，分析适合于无线传感器网络局部查询和全局查询的查询路由协议是论文的主要研究内容。
The purpose of the thesis is to investigate the energy efficient local query and global query protocols for wireless sensor networks (WSN).
针对不同的查询要求，分析适合于无线传感器网络局部查询和全局查询的查询路由协议是论文的主要研究内容。
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