使用导出和导入命令保留数据。
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).
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.
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.
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.
如果您不将这些数据保留一个周末，那么将没有详细信息可供分析。
If you don't keep that data over the weekend, that detailed information is not available for analysis.
缓冲池应该大到足以在内存中保留所需的数据，以便减少硬盘驱动器的活动。
The buffer pool should be large enough to keep the required data in memory so that hard disk drive activity can be reduced.
可以说，由于现实中的RDBMS常常包含需要保留的数据，仅仅删除模式然后通过DDL语句重新构建模式不是正确的选择。
Suffice it to say that because a real-world RDBMS frequently contains data that needs to be preserved, just dropping the schema and rebuilding it from DDL statements is not an option.
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.
如果我们使用了错误的遮光板，这意味着我们要么丢弃了真实数据，这是不好的；或者我们保留了不良数据，则更糟。
If we're using the wrong mask, that means we're either throwing out real data, which is bad, or we're keeping bad data, which is worse.
这意味着您必须定义一个数据结构来保留感兴趣的数据、抛弃余下的。
This implies that you must define a data structure to keep the data of interest and discard the rest.
然而，尽管XFS为新数据保留了空间，但它却没有决定将什么文件系统块用于存储数据，至少现在还没决定。
However, while XFS reserves space for the new data, it doesn't decide what filesystem blocks will be used to store the data, at least not yet.
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.
当然，保留这类数据的一个缺点是占用磁盘空间，但在许多情况下，在需要时能够使用这些数据的优点远大于其磁盘空间成本。
The drawback of keeping this much data is, of course, disk space, but the benefit of having this data available when needed outweighs the cost in most cases.
这会在元数据库中保留运行的元数据与统计信息，并保持运行在规则历史记录中可见。
It will keep the metadata and statistics of the run in the metadata repository, and keep the run still visible in the history of the rule.
生成的逻辑数据模型保留术语表分类。
Resulting logical data model retains glossary classifications.
生成的逻辑数据模型保留术语表分类。
Resulting logical data model retains glossary classifications.
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