Support for additional relational database systems may be added in future releases.
将来的版本中可能添加对其他关系数据库系统的支持。
This allows pipelined execution, in the typical manner adopted by relational database systems.
这允许按关系数据库系统采用的典型方式进行流水线执行。
Finally we point out that there are many other important applications of analytical graph in relational database systems.
最后，我们指出分析图在关系数据库系统中的许多其它重要应用。
One of the many mechanisms used by relational database systems to insure those all-important qualities is transactional logging.
关系数据库系统为确保那些非常重要的特性所使用的众多机制之一是事务性日志记录。
This has created the requirement of exchanging business data in XML among applications based on relational database systems.
这就产生了基于关系数据库系统的、以xml格式交换业务数据的需求。
In this paper, we describe an algorithm, for query processing with semantic optimization in distributed relational database systems.
本文描述一个分布式关系数据库系统中具有语义优化的查询处理算法。
Temporal database systems extend traditional relational database systems. One important such extension is to support time-varying aggregation.
时态数据库扩展了传统的关系数据库，其中一个重要的扩展就是对于时态聚集查询的支持。
Several large companies have built their systems using relational database systems, online transactional systems, as well as back-end analytics applications.
不少大公司都使用关系数据库建设了自己的信息系统，如在线交易系统以及后端分析应用程序。
This article assumes that you have a basic knowledge of relational database systems (RDBMS) and have previously implemented applications using either DB2 or another RDBMS.
本文假设您了解关系数据库系统(RDBMS)的基本原理，并且用DB 2或其他RDBMS实现过应用程序。
Since most people are familiar with commercial relational database systems, it is easy to understand what a data warehouse is by comparing these two kinds of systems.
由于大多数人都熟悉商品关系数据库系统，将数据仓库与之比较，就容易理解什么是数据仓库。
Relational database systems have been around for a few decades and have been hugely successful in solving data storage, serving, and processing problems over the years.
关系数据库系统已经存在了几十年，在解决数据存储、服务和处理问题上都取得了巨大的成功。
Although resource adapters used in the example do not respond to changes in J2EE transactional isolation level Settings, some EISs built around relational database systems may be affected.
虽然示例中使用的资源适配器不响应J2EE事务性隔离级别设置的变化，但是某些围绕关系数据库系统构建的EIS确实可能会受到影响。
Overall, these restrictions limit the flexibility of relational database systems and, thus, the ability of users of such systems to implement complex, interactive models within the database itself.
总之，种种约束限制了关系数据库系统的灵活性，并因此限制了系统用户在数据库内部实现复杂、交互式模型的能力。
Some relational database management systems do not allow the registration of multiple databases per instance.
有些关系数据库管理系统不允许每个实例注册多个数据库。
Many database systems allow you to store XML data as CLOBs or "shred" the data into relational tables.
许多数据库系统允许将XML数据存储为clob格式，或将数据“分解”到关系表中。
Applications such as publishing systems that care about these details need to look beyond the relational database for their information storage needs.
关心这些细节的应用程序如出版系统，需要寻求关系数据库之外的方法来存储需要的信息。
The relational database file systems can be handled in this manner.
关系数据库文件系统可以按这种方法进行处理。
In early transactional systems, such as the support in relational databases, transactions affected only data in the database itself, and the transaction's scope was restricted to that database server.
在早期的事务系统(如关系数据库中的支持)中，事务只影响数据库本身的数据，且事务的范围被局限于该数据库服务器。
The capacity of relational database management systems (RDBMS) to process great volumes of data is unquestionable.
关系数据库管理系统(RDBMS)处理大量数据的能力是毫无疑问的。
Once performed, you can simply go to a relational database performance benchmark site and find systems in the ballpark range.
得到结果之后，只需访问一个关系数据库性能基准站点，查找能够满足需要的系统。
Again, just like relational database management systems (RDBMS), objects and RDF are similar in some ways and different in others.
另外，像关系数据库管理系统（RDBMS）一样，对象和RDF在一些方面相似而在其他方面不同。
Traditional relational database management systems sometimes use locking to manage concurrency, preventing clients from accessing data while another client is updating that data.
传统的关系数据库管理系统有时使用锁来管理并发性，从而防止其他客户机访问某个客户机正在更新的数据。
Sources and targets include relational database management systems, ERP systems, mainframe legacy systems, XML, and proprietary data formats.
源和目标包括关系数据库管理系统、ERP系统、大型机遗留系统、XML和专用数据格式。
IBM DB2 is a relational database management system that runs on a wide range of devices and operating systems.
IBMDB 2是一个关系数据库管理系统，它能够运行在许多设备和操作系统上。
In broad themes, database management systems (DBMSs) have historically been of three types: hierarchical, relational, and object-oriented.
从广义角度来说，数据库管理系统(DBMS)在历史上划分成三种类型：层次、关系和面向对象。
Commercial relational database management systems (DBMSs) address those issues but fall short in other areas.
商业关系数据库管理系统(DBMS)解决了这些问题，但是在其他方面有所欠缺。
Meanwhile, relational database management systems (RDBMS) “scale up” by getting faster and faster hardware and adding memory.
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。
Relational database management systems (RDBMS) are good at storing and retrieving structured data.
关系数据库管理系统（Relational database management systems，RDBMS）适合于存储和检索结构化数据。
IBM's DB2 database provides not only relational database storage, but also XML-related tools such as the DB2 XML Extender which provides a bridge between XML and relational systems.
IBM的DB 2数据库不仅支持关系数据库存储，还提供与XML有关的工具，比如可作为XML与关系系统之间桥梁的DB 2 XMLExtender。
Some relational database management systems (RDBMSs), such as Sybase, do not support table expressions in the FROM clause.
有些关系数据库管理系统(RDBMS)，例如sybase，不支持在from子句中使用表表达式。
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