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。
Data skew has great effects on the performance of parallel database systems.
数据倾斜对并行数据库系统性能的影响极大。
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。
Recovery from node failures is a critical issue in distributed and parallel database systems.
分布式并行执行子系统负责具体的数据库操作。
This paper considers SQL Group-By and aggregation based on merge-sort in parallel database systems.
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。
The data storage and distribution based on PC clusters is one of critical problems in parallel database.
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。
This is a good general introduction to parallel database systems and the issues involved in their design.
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 paper presents a plan for the architecture of a parallel database machine based on the special hardware, SADM.
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。
The parallel database system consists of many servers provides a excellent platform fore-commerce and e-government.
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 load balancing techniques in parallel database systems include static load balancing and dynamic load balancing.
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 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。
Index replication is an important approach that provides parallel and improves usability of distributed parallel database.
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。
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.
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。
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。
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.
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。
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.
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。
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 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。
If you have several job databases, you need to do the same analysis for each CSLD job database and sum up the parallel threads.
如果有多个任务数据库，那么需要对每个CSLD任务数据库进行相同的分析，然后总计出并行线程数。
RUNSTATS does not run in parallel in a partitioned database, but information is determined for one partition, and then extrapolated to determine a suitable estimate for all partitions.
RUNSTATS不是在分区的数据库中并行运行的，但对一个分区确定信息，然后对所有分区推断出合适的估计值。
DPF enables data to be added more quickly because each database partition can process the work in parallel.
通过DPF可以更快速地添加数据，因为每个数据库分区可以并行工作。
Also, the response time of complex analytical queries can be reduced by spreading the data across multiple database partitions, such that all partitions work on their assigned data in parallel.
此外，通过跨多个数据库分区分散数据以使多个分区可并行处理分配到其上的数据，也能减少复杂的分析查询的响应时间。
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。
Data retrieval and update requests are decomposed automatically into sub-requests, which are then executed in parallel among the applicable database partitions.
数据检索和更新请求被自动分解成一些子请求，然后这些子请求在相应的数据库分区中并行地执行。
The database server can internally process the information in parallel, providing much better throughput.
数据库服务器可以在内部并行地处理信息，以提供大得多的吞吐量。
In case of any change in database structure or remote APIs, the old and new version of the application may not be compatible and in that case cannot be ran in parallel.
数据库结构或远程API要是有任何变化，应用的新旧版本就可能不兼容了，这种情况下新旧版本也不能同时运行。
A good way to verify the parallel setup is to look at the CSLD job database.
验证并行设置的一个好方法是看CSLD任务数据库。
First, the Netezza database management system (DBMS), a highly optimized engine for the massively parallel Netezza environment, does not use indexes.
首先，Netezza数据库管理系统(DBMS)，一个面向大规模并行netezza环境的高度优化的引擎，不会使用索引。
Easily migrate data to a partitioned database or warehouse using the splitter function to unload into pre-split files ready for parallel loading.
使用splitter功能将数据卸载到预分区文件来为并行加载做准备，轻松地将数据迁移到分区数据库或数据仓库。
Easily migrate data to a partitioned database or warehouse using the splitter function to unload into pre-split files ready for parallel loading.
使用splitter功能将数据卸载到预分区文件来为并行加载做准备，轻松地将数据迁移到分区数据库或数据仓库。
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