使用导出和导入命令保留数据。
第2部分：在破坏性变更之后保留数据。
只保留数据，不保留格式和任何特性。
Only the data is preserved, without formatting or any properties.
生成的命令包括保留数据以防破坏性表更改的命令。
The generated commands include commands to preserve data in case of a destructive table change.
Runtime(一直保留数据，可以通过反射来访问)。
Runtime (where data is retained always and accessible through reflection).
使用CDATA的另一个重要的原因是保留数据的实际格式。
Another important reason to use CDATA is to preserve the exact formating of data.
没有人保留数据。
最基本的方法是使用历史保留数据对活跃的顾客做出以下预测。
The basic approach to tagging customers is to utilize historical retention data to make predictions about active customers regarding.
在其他情况下，需要移动数据以便在部署时保留数据。
In other cases, data motion is required to preserve data at deployment time.
也就是将这些活跃的顾客和历史保留数据中有相似特质的顾客相匹配。
The idea is to match up active customers with customers from historic retention data who share similar attributes.
实际上存在两种保留数据的单独方法，具体取决于您的SQL知识水平。
Actually there are two separate ways to keep your data, depending on your level of SQL knowledge.
XML的另一个优点是，它在数据传输过程中可以保留数据的结构。
Another advantage of XML is that it retains the data's structure in transit.
使用此属性通过使用URL查询字符串在各次请求之间保留数据。
Use this property to persist data between requests through the use of the URL query string.
日志中保留数据的多个副本可以带来一些有趣的优点，后面将详细谈到这些优点。
Having multiple copies of data in the log introduces some interesting benefits, which will be covered in more detail below.
还保留数据块结尾的尾部字节并将这些尾部字节用在下一次解码操作中。
Also preserves trailing bytes at the end of data blocks and USES the trailing bytes in the next decoding operation.
注意：样本数据仅供参考，本公司保留数据变动的权力，并接受特殊订货。
Notice: the sample data provides the reference only, the power that square reservation data of factory change, be alongside of to be subjected to special orde.
许多编程语言都有这样的技术，即通过保留数据从而减少所需的系统资源使应用的效率更高。
Many languages have techniques to make applications more efficient by retaining data and thereby reducing needed system resources.
当它被保存在日志文件时，整个服务器无法烧，并只要保持该磁盘，也将保留数据。
When it's saved in the log file, the whole server could burn down, and as long as you keep the disk, you also keep the data.
如果部署脚本或更新脚本中包含这些类型的更改，则可能要手动修改该脚本以保留数据。
If the deployment or update script contains these types of changes, you might want to modify it manually to preserve the data.
因为MongoDB使用BSON而不是JSON或CSV，从这些格式中导入数据时很难保留数据类型。
Because MongoDB USES BSON and not JSON or CSV, it is difficult to preserve data types when importing data from these formats.
Wufoo高亮显示错误，并把用户做错了什么解释清楚，网页刷新时还会保留数据，这些让修改变得很容易。
Wufoo highlights errors, explains exactly what the user did wrong and preserves the data across refreshes, which makes corrections easy.
对工程数据的处理结果分析表明，该方法的数据处理精度可以达到工程要求，并且能够较好地保留数据的几何特征。
A sample is demonstrated and shows that the method is fitted for engineering and can keep the intrinsic geometry of original surfaces.
资源描述框架(Resource Description Framework,RDF)是描述对象同时保留数据含义的理想方法。
The Resource Description Framework (RDF) is a perfect way to describe objects while maintaining the meaning of that data.
这样的数据不再保留在计算机的主存储器中。
This information is no longer retained within the computer's main memory.
数据保留命令和维护命令是穿插出现的。
The data preservation commands and the maintenance commands are interleaved.
此部分为非初始化数据保留。
通常的经验表明，组织会从自身决策角度出发，或者是根据数据的业务价值来保留旧的数据。
Usual practices indicate that organizations used to retain old data out of their own discretion or due to data's business value.
这可以限制需要保留的数据的大小。
由于需要保留会话数据，因此系统内存不足时，无法丢弃任何数据。
Session data needs to be kept, so the system cannot discard any data when running low on memory.
由于需要保留会话数据，因此系统内存不足时，无法丢弃任何数据。
Session data needs to be kept, so the system cannot discard any data when running low on memory.
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