查询优化是并行数据库系统的核心技术。
Query optimization is the critical technique of parallel database systems.
数据倾斜对并行数据库系统性能的影响极大。
Data skew has great effects on the performance of parallel database systems.
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.
查询优化和处理是并行数据库管理系统的关键组成部分。
Query optimization and processing is a critical component of parallel database systems.
这是对并行数据库系统以及其设计问题的一个很好的综合介绍。
This is a good general introduction to parallel database systems and the issues involved in their design.
并行数据库负载平衡技术分为静态负载平衡和动态负载平衡两种。
The load balancing techniques in parallel database systems include static load balancing and dynamic load balancing.
基于机群系统的数据存储分布是并行数据库领域的一个重要问题。
The data storage and distribution based on PC clusters is one of critical problems in parallel database.
本文考虑在并行数据库系统中基于归并排序的分组操作和集函数计算。
This paper considers SQL Group-By and aggregation based on merge-sort in parallel database systems.
本文提出了一种基于专用硬件的并行数据库机体系结构SADM方案。
This paper presents a plan for the architecture of a parallel database machine based on the special hardware, SADM.
索引复制是分布并行数据库提供并行性和提高可用性的一个重要手段。
Index replication is an important approach that provides parallel and improves usability of distributed parallel database.
这些算法和相应的查询优化处理器已用于作者自行设计的并行数据库管理系统原型。
A complete set of a algorithms and techniques are proposed. the algorithms and techniques have been used in a prototype parallel database system designed by the author.
这些因素使多玩家在线游戏引擎可以利用并行数据库技术，比如对称多处理器，以及其他大内存系统。
These factors allow a multiplayer online game engine to take advantage of the power of parallel database technology, such as symmetric multiprocessors, and other large memory systems.
由多台服务器组成的并行数据库系统为当前大型电子商务和电子政务的应用提供了优秀的平台。
The parallel database system consists of many servers provides a excellent platform fore-commerce and e-government.
因此，该文将并行处理与数据库技术相结合，设计并实现了应用于大流量网络平台的并行数据库。
So, this paper combines the parallel technology with the database technology, and designs a parallel database used on the network platform with massive data flow.
本文分析了并行数据库中各结点的负载平衡问题，提出了一个高效且保持负载平衡的并行连接运算算法，并进行了模拟实验。
This paper analyses the problems of load balancing on every site in parallel databases, presenting a parallel join algorithm with high efficiency and load balancing and analogue experiments are made.
实践证明，这些技术和方法不仅能够快速有效地实现并行数据库管理系统，也能够有效地进行并行数据库查询的优化和处理。
It is shown by the prototype system that the proposed algorithms and techniques are very efficient and effective for query optimization and...
针对分布式并行数据库系统DPDBS中数据库副本数、数据库分布等信息的动态性，提出全局数据目录的动态管理和维护算法。
Aiming at the dynamic characteristic of the data directory in distributed and parallel database system (DPDBS), the dynamic arithmetic for whole data directory is put forward.
本文主要研究分布式并行数据库的一致性机制，数据库的一致性机制是保证分布式并行数据库系统能正常提供数据库服务的基础。
This thesis mainly research the consistency mechanism of distributed and parallel database, the consistency mechanism of database system can provide user normal database service.
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。
This paper discusses the understanding on the parallel database from the architecture of parallel database systems, parallel database query, aggregation, sorting, and data reliability.
Slice会在每片的并行线程中执行数据库操作。
Slice executes database operations in concurrent threads per slice.
Slice会在每片的并行线程中执行数据库操作。
Slice executes database operations in concurrent threads per slice.
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