我们的公司是一家通信公司，其数据库被用来存储通信性能管理数据、事件订阅列表以及网络元素配置信息。
Our company is a communication company, and our database is used to store communication performance management data, event subscription lists, and network element configuration information.
学习如何利用数据库管理系统中的xml索引和查询过滤功能来确保强健的运行时性能。
Learn how to leverage XML indexing and query filtering capabilities in a database management system to ensure strong runtime performance.
我们希望通过清晰地定义大型数据库的特征，增强对如何管理性能的理解。
We hope that by more clearly defining the nature of large databases, we can improve our grasp on how to manage performance.
并发访问的有效管理(对目标的服务请求)由目标数据库服务器的性能特性决定。
Efficient management of concurrent access (of service requests to the target) is determined by the performance characteristic of the target database server.
我们来看看不同领域的一些工具，例如数据库创建和维护、网络、管理GUI、性能调优、数据移动和备份恢复工具。
We shall look at tools from different areas such as database creation and maintenance, network, administration GUI, performance tuning, data movement and backup-recovery tools.
有许多主题未在本文中进行介绍，但它们同样是交付良好数据仓库解决方案的基础，包括系统和数据库设计、管理、性能调优等。
There are many topics not covered here that are also fundamental in delivering a good data warehouse solution, including system and database design, administration, performance tuning, and others.
任务包括计划并管理数据库、调优性能与容量、创建和维护索引并优化查询、监测、以及管理备份与恢复。
Tasks include planning and administering the database, tuning for performance and capacity, creating and maintaining indexes and optimizing queries, monitoring, and managing backup and recovery.
通常，为了降低管理和保持一个较为简单的数据库设计的复杂性，稍微降低一点性能是值得的。
Often a slight degradation in performance is well worth the reduced complexity of administering and maintaining a simpler database design.
IBMi 6.1提供的新的DB 2数据库功能和管理工具，丰富了应用程序的功能性，提升了应用程序的性能。
Enhance application functionality and performance with new DB2 database functions and management tools provided with IBM I 6.1.
传统的关系数据库管理系统通过 “向上扩展“的方式通过更好的硬件设施来提升系统性能。
Meanwhile, relational database management systems (RDBMS) “scale up” by getting faster and faster hardware and adding memory.
PerformanceOptimizationFeaturePack：提供工作负载管理服务和一套用于调优db 2数据库性能的报告和工具。
Performance Optimization Feature Pack: Delivers workload management services and a suite of reports and tooling for the performance tuning of DB2 databases.
本文概述了用于数据库开发、管理和性能管理的Optim解决方案。
This article gives an overview of the InfoSphere Optim solutions for database development, administration, and performance management.
IBMInformixDynamicServer是一个完整且通用的关系数据库管理系统，具有出色的性能、高可伸缩性和低管理成本。
IBM Informix Dynamic Server is a complete and versatile relational database management system with excellent performance, high scalability, and low administration cost.
您的数据库管理员也应该分析数据库的各方面的性能。
Your database administrator should also review the performance of all aspects of the database.
如果没有这些统计信息，数据库管理器可能会做出对sql语句的性能产生不利影响的决定。
Without these statistics, the database manager could make a decision that would adversely affect the performance of an SQL statement.
并且它们只有在数据库管理员在系统具有性能问题时在系统上运行查询剖析器时才会出现。
And they only appear when the database administrator runs a query profiler on your system when it has performance problems.
这使得数据库系统管理员可以优化没有使用更新语句处的性能，或使用更新语句时也可以防止死锁。
This allows the database administrator to optimize the performance where the update syntax is not used, or to prevent deadlocks when it is used.
数据库管理器通过这些统计信息可以做出决策以提高SQL语句的性能。
With these statistics information database manager could make a decision that would increase the performance of an SQL statement.
在为每个用户分别提供一个数据库连接的情况下，消除管理开销和性能代价的惟一途径是将关系数据库工作从该计算机上转移开。
The only way to eliminate the administrative overhead and performance cost of giving each user a connection to the database is to move the relational database work off the computer.
通过利用这些特性，可以改善数据管理效果，同时提供最优数据库性能。
By taking advantage of these features, you can manage data more effectively, while delivering optimum database performance.
因此，数据库管理器需要从磁盘读取或写入磁盘的次数越少，性能就越好。
Therefore, the fewer times the database manager needs to read from or write to a disk, the better the performance.
每个实例还具有自己的配置文件，数据库管理器配置文件(DBMCFG)用于进行实例级的安全、性能变量和通信配置。
Each instance also has its own configuration file, the Database Manager configuration file (DBM CFG) for instance level security, performance variables, and communication configuration.
许多因素都可以影响数据库服务器的性能，例如硬件系统的设计、数据库对象的设计、数据存储器的管理、应用程序的设计等等。
Many factors can affect the performance of a database server, such as hardware system design, database object design, data storage management, application design, and so forth.
这将减少数据库管理器必须执行的锁定量从而提高读的性能。
This will reduce the amount of locking that the database manager has to perform and result in better read performance.
早期个人电脑上的数据库一直为性能问题所困扰，直到管理员学会了使用存储过程将多个数据库通信巩固为一体。
Early databases on the personal computer struggled with performance until administrators learned to use stored procedures to consolidate many database communications into one.
DB 2配置参数在决定性能方面起到非常重要的作用，它们可以影响数据库或数据库管理器的操作特性。
DB2 configuration parameters play an important role in performance, as they affect the operating characteristics of a database or database manager.
我们调优了几个数据库管理器和DOMINO数据库配置参数以实现最优性能，如表2所示。
We tuned several database manager and DOMINO database configuration parameters for optimal performance as listed in table 2.
例如，管理员可能将大型数据库与小型数据库结合使用，从而隐藏性能影响。
For example, an administrator might decide that having a large database mixed in with smaller ones can hide the performance impact.
还展示了大邮件文件是如何影响服务器性能的，并提供了减小数据库、收件箱大小以及全文索引开销的技巧，以及其他为用户、管理员和设计人员提供的方法。
We show how large mail files can affect server performance, and offer tips for reducing database and Inbox size, the cost of full-text indexes, and other ideas for users, administrators, and planners.
有时，只有数据库管理员有权创建SQL并对SQL的性能进行调优。
Sometimes only database administrators are authorized to create and fine tune SQL for performance.
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