We will also look into the effects of changes in the business requirements on the data (schema evolution) and its impact on the application code and the relational schema.
还将讲述业务需求更改对数据的影响(模式演化)以及对应用程序代码和关系模式的影响。
When a mutation is added, evolution can't quickly update the rest of the genetic code.
当出现一个基因突变时，生物进化并不能快速更新基因代码的其余部分。
Indeed, when Gerstein's team tracked the evolution of Linux kernel code since its original 1991 version, they found that its basic components had undergone extensive alteration.
事实上，当格斯坦研究小组追溯自从1991年原版本以来Linux内核代码演变时，他们发现其基本内容经历了重大修改。
The Rails migration feature helps application developers manage this schema evolution, making it easy to synchronize changes between the application code and the database objects.
Rails迁移特性可以帮助应用程序开发人员管理这种模式演变，便于在应用程序代码与数据库对象之间同步更改。
Software (or source) control, as the name implies, is a tool and an associated process that is used to maintain source code and its evolution over time. SCM provides these primary capabilities
软件（或资源）控制，正如其名字所暗示的那样，是一种工具和一种相关的过程，而这种过程被用于维护源代码及其演进。
The sample code xsupdate.db2 demonstrates the compatible XML schema evolution.
示例代码xsupdate.db2演示了兼容的XML模式演化。
God, Evolution, and Reason: Is There an Objective Moral Code?
上帝，进化与理性：客观的道德准则存在与否？
These mutations - where one letter of the DNA code is substituted for another - are a first step in evolution.
这些变异(即：DNA的代码中一个字母被另一个取代)是进化中的第一步。
In contrast to the cathedral-building style of the Emacs C core and most other GNU tools, the evolution of the Lisp code pool was fluid and very user-driven.
与Emacs的C核心和其他GNU工具的大教堂模式相比，Lisp代码集则是有诸多活跃用户驱动的。
Non violence leads us to the highest moral code, which is the goal of all evolution. Unless we stop hurting all our lives, we're still just some barbarians.
非暴力引领我们达至最高的道德规范，这是所有进化的目标。除非我们停止伤害其他一切生命，我们仍然只是些野蛮人。
The microstructure evolution models were implemented into the finite-element code, which allowed the prediction of distributions of grain size in the volume of the forging.
有限元分析方法通过应用微观结构演变的编码实现了预测、仿真锻造过程中晶粒的演变过程。
The key factors controlling the evolution of logistics organizations are the shift of information code systems and the cost change resulted from the shift.
决定物流组织演变的关键变量乃是知识编码化和它所引起的信息转换成本的变化。
Grammaticalization of Chinese classifiers involves two aspects, structural code adjustment and semantic evolution of classifiers.
汉语量词的语法化过程涉及两个方面：量词短语结构的变化和量词的语义演变。
Because of the sophisticated class structure and the redundant code, it is very difficult to reread the source code, and so are the software evolution and maintenance.
由于复杂类结构和冗余代码所带来的源码重读困难，使软件进化和维护都未达到理想的目的。
Researchers have wondered why some regions of DNA that do not code for proteins but nevertheless are functionally important have sequences that have not been maintained by evolution.
过去以来，科学家很奇怪在DNA中所存在的既不编码蛋白质但功能上很重要的部分区域中，有些序列从未受到进化的修改。
The first ohmic discharge in the EAST experiment is simulated using the famous11/2-D equilibrium evolution code.
利用11/2-D平衡演化程序对EAST的首轮纯欧姆放电进行了数值模拟，获得的模拟结果与实验结果吻合得很好。
By analyzing the discretized density evolution theory and the differential evolution algorithm, a method is proposed to search optimal irregular LDPC code for joint optimization of the system.
在分析和阐述了离散概率密度演化理论和多维线性空间极值问题的基础上，给出了适合于该方案的非正则ldpc码的搜索算法和搜索结果。
By analyzing the discretized density evolution theory and the differential evolution algorithm, a method is proposed to search optimal irregular LDPC code for joint optimization of the system.
在分析和阐述了离散概率密度演化理论和多维线性空间极值问题的基础上，给出了适合于该方案的非正则ldpc码的搜索算法和搜索结果。
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