在对数据进行的所有的操作中，这是最简单的一种操作。
Of all the manipulations you've performed on the data, this one is by far the simplest.
与直接的提取和加载操作不同，转换是最复杂的部分。因为在此过程中需要对数据进行理解、转换、聚集和计算。
Unlike straightforward extract and load operations, transformation is the most complicated piece, as there is a need to understand, convert, aggregate, and calculate data.
事实上，对数以千计的、包含请求搜索的关键字的文档进行排序，以便将与用户最相关的文档列在最上方，这并不是一件容易的任务。
Indeed, taking the thousands of documents that contain the requested keywords and ordering them so the most relevant for the user are at the top is no easy task.
最后，我再重申一下，本文及本系列的后续文章只是对数据统计和数据挖掘领域做了最简单的介绍。
Finally, I want to reiterate that this article and the ones in the future parts of this series only are a brief introduction to the field of statistics and data mining.
最近我也对数字“37”产生了兴趣，对于我和其他爱好者来说，它是最神奇的。
More recently I've also taken a liking in - what appears to me and many others - as the oddest number: 37.
SQL注入是第二个最流行的漏洞，这主要是因为Web站点对数据库的依赖性日益增加。
SQL injection is the second most popular vulnerability, primarily because of the growing dependence Web sites have on databases.
您可以通过Web在这个界面中对数据库的所有内容进行管理(包括上传图像资源)——这是DomBlog的最出众的功能之一。
You can manage all the content of the database across the Web from this interface (including uploading image resources) — one of the best things about DomBlog.
这种加密方式可以控制应用系统的用户对数据的访问权限，并且真实数据对所有数据库用户都是不可见的，是最安全的一种加密方式。
This encryption method can control the user's access to the data of the application system, and the real data for all database users are not visible, is the safest way to encrypt.
过程监视时，MSPCA能自动对数据滤波并调节检测控制限，使控制限最容易检测出测量变量中重要的微小变化。
In process monitoring, MSPCA automatically filters the data and adjusts the detection limits for easiest detection of important and tiny changes in the measurements.
对系统安全策略的研究是一项庞大的工程，但其中最基本也是最关键的研究课题主要包括两大部分，一是对数据加密技术的研究，另一个是对身份认证技术的研究。
Although it's a huge project, the most fundamental and critical theme includes two parts, one is the research on data encryption, the other is on certification authentication.
互操作性是数字版权保护系统中核心问题，解决互操作性最关键的是对数字作品的信息和权利做出统一的规范，也就是解决数字权利描述语言的互操作性问题。
Giving the standard specifications of digital works' rights and information is crucial to solve it which is the problem of solving the interoperability of digital rights expression language.
互操作性是数字版权保护系统中核心问题，解决互操作性最关键的是对数字作品的信息和权利做出统一的规范，也就是解决数字权利描述语言的互操作性问题。
Giving the standard specifications of digital works' rights and information is crucial to solve it which is the problem of solving the interoperability of digital rights expression language.
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