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。
Some relational database management systems do not allow the registration of multiple databases per instance.
数据库管理系统在事务范围之内提供锁定机制。
Database management systems provide for locking within the scope of a transaction.
由于这些原因，理解数据库管理系统中备份和恢复功能的工作原理，并实施经过精心规划的备份策略，就显得至关重要了。
For these reasons, it is critical that you understand how backup and recovery features function for your database management system, and that you have a well-planned backup strategy implemented.
事务是以文本、列（或同时使用两者）的形式表现的来自真实世界的实体，将由数据库管理系统处理。
Transactions are real world entities that can be expressed in the form of text, numbers, or both, to be processed by a database management system.
该结果集对象是一个复杂对象，它通常位于数据库管理系统的存储器中，并且只能通过与之交互的函数辨认。
A result set object is a complicated beast, as it usually resides within the memory of the database management system and can only be deciphered by functions that interact with it.
使用表的字符大对象（CLOB）或二进制大对象（BLOB）列在关系数据库管理系统（DBMS）中按原样存储XML数据。
Using character or binary large object (CLOB or BLOB) columns of tables to store the XML data intact in a relational database management system (DBMS).
然后，这些结构可以在关系数据库管理系统中实现。
These structures are then implemented in a relational database management system.
数据保存服务：这些服务执行传统地归属于数据库管理系统的数据活动，例如创建、读取、更新和删除。
Data persistence services: These services perform data activities that are traditionally relegated to the database management system, such as create, read, update and delete.
一旦你理解了SQL，你会更好地领会一个关系型数据库管理系统的局限性。
Once you understand SQL, you’ll have a much better grasp on the limitations of an RDBMS.
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.
关系数据库管理系统(DBMS)中的表或视图。
Tables or views in a relational database management system (RDBMS).
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。
The capacity of relational database management systems (RDBMS) to process great volumes of data is unquestionable.
依赖于数据库管理系统和JDBC驱动器的实现，该操作会根据应用程序服务器的时区将时间戳数据写到数据库中。
Depending on the database system and the implementation of the JDBC driver, this usually results in timestamp data written in the time zone of the application server.
该定义听起来像是数据库管理系统中的一个事务性机理，如果它没有正常运行的话该步骤可以返回。
This definition sounds like that of a transactional mechanism in a database management system, in which a step can be rolled back if it is not performed correctly.
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。
Again, just like relational database management systems (RDBMS), objects and RDF are similar in some ways and different in others.
如果无法连接到数据库管理系统，那么在执行php脚本时，您将会收到一个消息，指出连接失败及失败的原因。
If a connection cannot be made to the database management system, you receive a message indicating that the connection failed and the reason it failed when the PHP script is executed.
另外，还应该拥有使用HTML和/或XML 进行开发，以及使用SQL和数据库管理系统通信的经验。
You should also have some experience of developing with HTML and/or XML, and of communicating with a database management system using SQL.
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。
Traditional relational database management systems sometimes use locking to manage concurrency, preventing clients from accessing data while another client is updating that data.
它需要技术和设备，例如硬件、操作系统、数据库管理系统、网络连接、多媒体。
It entails both technology and facilities such as hardware, operating system, database management systems, networking, multimedia, database management systems and multimedia.
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。
IBM DB2 is a relational database management system that runs on a wide range of devices and operating systems.
日益地，应用程序越来越需要处理这些消息以及存储在原生xml数据库管理系统中的永久业务工件。
Increasingly, applications need to process these messages as well as persistent business artifacts stored in a native XML database management system.
它与关系数据库管理系统(RDBMS)有什么不同呢？
How is it different from Relational Database Management Systems (RDBMSs)?
出于本文目的，数据库管理系统与应用服务器并置。
For the purposes of this article, the database management system is collocated with the application server.
任何数据库管理系统都必须拥有确保数据一致性和可恢复性的机制。
Any database management system must have mechanisms for securing data consistency and recoverability.
多数商业数据库管理系统已经以某种形式支持XML持久性。
Most commercial database management systems already support XML persistence in some form.
这个因素与DB2的技术优势结合起来，将确保DB 2成为领先的数据库管理系统。
Along with DB2's technical excellence, this ensures DB2's position as a leading database management system.
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。
In broad themes, database management systems (DBMSs) have historically been of three types: hierarchical, relational, and object-oriented.
对于关系数据库管理系统，一个服务器通常代表一个远程数据库。
For a relational database management system, a server usually represents a remote database.
IBMTSOM是依靠底层的数据库管理系统来实现诸如相关性分析、配置、历史搜索和生成报表等功能。
IBM TSOM depends on the underlying database management system for functions like correlation, configuration, historical searches, and report generation.
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。
Commercial relational database management systems (DBMSs) address those issues but fall short in other areas.
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