This paper discusses the understanding on the parallel database from the architecture of parallel database systems, parallel database query, aggregation, sorting, and data reliability.
本文从并行数据库系统的体系结构、并行数据库的查询，聚集，排序及数据可靠性等方面入手，阐述了对并行数据库的认识和看法。
When the DB2 optimizer forms a query access plan for a query, it divides the work among the database partitions which work in parallel.
当DB 2优化器为一个查询形成查询访问计划时，它将工作划分到多个数据库分区上，这些数据库分区是并行工作的。
If database query and Web service invocation could occur in parallel, the asynchronous case would behave better.
如果数据库查询和Web服务调用并行进行，异步用例表现更加良好。
Query optimization is the critical technique of parallel database systems.
查询优化是并行数据库系统的核心技术。
Owing to the achievements in parallel information retrieval research, it is possible to query quickly the large-capacity database in retrieval system and to cut short the response time.
并行信息检索研究领域的开辟，使快速查询检索系统中的大容量数据库和有效缩短检索响应时间成为可能。
Data declustering is the foundation of the parallel processing of database query, which has significant effect on query performance.
数据分布是数据库查询并行处理的基础，良好的数据分布方法对查询性能有着重要影响。
Query optimization and processing is a critical component of parallel database systems.
查询优化和处理是并行数据库管理系统的关键组成部分。
The multi-join query optimization is the critical problem of parallel query optimization in parallel database system.
多连接查询优化是并行数据库系统的核心问题。
The multi-join query optimization is the critical problem of parallel query optimization in parallel database system.
多连接查询优化是并行数据库系统的核心问题。
应用推荐