定义了数据的哪些节是必须的或者是可选的，数据节的数量和数据元素的顺序。
Electronic data Interchange for Administration, Commerce and Transport (EDIFACT) defines which data segments are mandatory or optional, and the number and order of elements.
在许多这样的环境中，人们是从有好几兆字节的数据源着手。
In many of these contexts, one starts out with multi-megabyte data sources.
这是通过使用三个故障组得以实现的，我们将在数据复制一节详细对之进行介绍。
This is also made possible by the use of three failure groups, which are further explained under Data replication.
在许多这样的环境中，您要从数兆字节的数据源文件着手，因此若将它们增加几倍会引起不便，尤其对于传输用途。
In many of these contexts, you start with multi-megabyte data sources, so making them several times larger can be inconvenient, especially for transmission purposes.
下一节将更全面的介绍与数据采集和报告系统有关的应用程序架构。
The next section takes a broader view of application architecture related to data gathering and reporting systems.
如果是这种情况，那么您应该继续下一节理解生成的SOAP和数据类。
If this is the case, then you should proceed to the next section, Understanding generated SOAP and data classes.
上月初，上海分公司最终完成了基于EPON的CD MA1x和基于EPON的EVDO高速数据通信的割节，现场测试结果出色。
Early last month, the company finally completed the cutover of the CDMA 1x service and EVDO high-speed data service over EPON and achieved on-site service test results with flying colors.
本文下一节将讨论数据建模师在日常工作中可能用到的一些特性。
The next section of the article discusses the features that you will probably use in a daily basis as a data modeler.
解释如何使用XSS4J解密上一节加密的XML数据。
Explanation of how to use XSS4J to decrypt the XML data that you encrypted in the previous section.
这一技术有每秒4千字节的数据传送率，比以往任何产品都要快得多，而且价格适宜。
The tech delivers four-gigabit-per-second data rates, far faster than anything previously available at consumer prices.
这一节将重点介绍如何从单表中选择数据；本文中的最后一节将介绍表连接和如何从多个表中进行选择。
This section focuses on selecting data from a single table; the last section in this article covers table joins and selecting data from multiple tables.
在下一节中，您将学习如何创建数据库、文档和集合。
In the next section, you will learn how to create databases, documents, and collections.
最后一节讨论如何在数据库级应用过滤谓词，以提高查询性能和缩短响应时间。
The last section discussed how to apply filter predicates at the database level to improve query performance and response times.
每次事务修改的对象数量越少就意味着会有更多数据库提交，正如4.5节所述每次提交都会带来磁盘相关的开销。
A smaller number of changed objects per transaction mean more commits to your database, each of which incurs some disk-related overhead as mentioned in Section 4.5.
在前一节中，学习了如何创建XML数据模型和数据实例(默认实例)。
In the previous section, you learned how to create an XML data model and data instance (the default instance).
它可以透明地管理比内存大得多的数据和代码(兆兆字节级别)。
It can transparently manage a much larger amount (terabytes) of data and code than will fit in memory.
结合在集成本地XML存储数据一节介绍的场景，来看看图4所示的实体关系图，该图描述了一个在线书店的场景。
Based on the scenario introduced in the Integrating local XML store data section, consider the entity relationship diagram shown in Figure 4 that describes an online bookstore scenario.
在下面一节中您将学习设计和实现数据访问对象的技术。
In the sections that follow you'll learn techniques for designing and implementing data access objects.
我们将这个自定义数据视图添加到在上一节中创建的SQL数据组中。
This customized data view is added to the SQL data Group you created in the previous section.
然而，这段新代码假定起始地址是按照16字节对齐的，并且末尾也有足够的填充位，因此内存中下一个数据元素也是16字节对齐的。
However, this new code now assumes that the starting address is 16-byte aligned, and also that it has enough padding on the end that the next data element in memory is also 16-byte aligned.
这听起来有点像大海捞针，在一个单独运行的程序里有成千上万字节的数据，漫无目的的在数据海洋里乱找结果不会很理想。
This may sound a bit like a needle-in-a-haystack problem. There are in many cases millions of bytes of data in a single running program.
与此同时，手机公司的无限量数据套餐要价大约15美分每兆字节——这里的数据指网上冲浪，流媒体音乐，录像，或者发送电子邮件。
At the same time, cellphone companies charge roughly 15 cents a Megabyte in an unlimited data plan - data in this case meaning Web surfing, streaming music or video or sending E-mail.
在演示如何实现矩阵查看器之前，让我们先在下一节中看看数据源xml是如何生成的。
Before showing how we implemented the matrix viewer, let's explore in the next section how the data source, XML, was generated.
一定要用合法的xml字符替换数据，而不要用随机字节，因为即使一百字节的随机数据也一定是畸形的。
Be careful to replace data with legal XML characters rather than random bytes, because even a hundred bytes of random data is almost certain to be malformed.
它按照块(8字节长度)对数据加密，而且还支持长度为40位、64位和128位的密钥。
It encrypts the data by blocks (8-bytes long), and supports key lengths of 40 bits, 64 bits, and 128 bits.
前一节所描述的数据库设计决策的益处。
The benefit of the database design decisions described in the previous sections.
通过保持数据对齐并针对16字节边界进行填充，向量操作就可以毫不费力地执行了。
By keeping the data aligned and padded to 16-byte boundaries, vector operations can be performed effortlessly.
下面说明如何做到：假定您想从文件开头算起第1000字节处开始读取一块789字节的数据。
Here is how it is done: suppose that you want to read a chunk of 789 bytes starting from byte 1000 counted from the beginning of that file.
邮件模板示例以及CSLD 8.3配置数据库在下载一节中提供，可以作为您自己进行定制的起点。
The sample mail template, together with the CSLD 8.3 configuration database, is attached in the download section and can be used as a starting point for your individual customization.
这个数量由数据库配置参数（在下一节中讨论）控制。
This number is controlled by a database configuration parameter (discussed in the next section).
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